CA2673820A1 - Improved calibration and metering methods for wood kiln moisture measurement - Google Patents

Improved calibration and metering methods for wood kiln moisture measurement Download PDF

Info

Publication number
CA2673820A1
CA2673820A1 CA002673820A CA2673820A CA2673820A1 CA 2673820 A1 CA2673820 A1 CA 2673820A1 CA 002673820 A CA002673820 A CA 002673820A CA 2673820 A CA2673820 A CA 2673820A CA 2673820 A1 CA2673820 A1 CA 2673820A1
Authority
CA
Canada
Prior art keywords
cabling
impedance
determining
values
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002673820A
Other languages
French (fr)
Other versions
CA2673820C (en
Inventor
Richard Magill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Signature Control Systems Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2673820A1 publication Critical patent/CA2673820A1/en
Application granted granted Critical
Publication of CA2673820C publication Critical patent/CA2673820C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity

Abstract

A moisture metering calibration method and system for, e.g., determining the moisture lumber within a lumber drying kiln is disclosed. Calibration of moisture indicative electrical signals obtained from, e.g., moisture sensing capacitive plates spaced apart within a stack of drying lumber is performed, wherein long lengths (e.g., up to 1000 linear feet or more) of coaxial cable can be used for transmitting the signals, and effectively removing signal anomalies induced in such cabling so that accurate lumber moisture measurements result. Such extended cable lengths provides flexibility with respect to placement of electronic moisture metering equipment. This flexibility allows such equipment to be placed in an environmentally-controlled enclosure, rather than on the weather exposed exterior of a kiln whose lumber is being monitored.

Claims (80)

What is claimed is:
1. A method for determining a moisture content of lumber drying, wherein signals transmitted from a moisture sensitive sensor are used to determine the lumber moisture content, comprising:
first obtaining cabling for signal communication between: (1) a moisture sensitive sensor for measuring a capacitance of a stack of lumber being dried in which the sensor is embedded, and (2) a data acquisition device for receiving signals from the sensor in response to an excitation signal provided to the sensor via the cabling, wherein the cabling includes a conductor, and a conductive shielding surrounding the conductor;
configuring the cabling in each of one or more circuit configurations so that in each circuit configuration at least one end of the cabling is not operatively connected to each of: the sensor, and the data acquisition device;
second obtaining, for each of the one or more circuit configurations, one or more calibration values, including at least one of the following sets of substeps:
(a) a first set of steps including:
(a-1) obtaining, for each of the circuit configurations, corresponding impedance data for a predetermined impedance load applied to the cabling; and (a-2) determining at least one of the calibration values, by determining (i) an impedance including a parallel combination of a capacitance between the conductor and shielding, and (ii) a resistance between the conductor and the shielding, wherein the shielding is excited;
(b) a second set including the step:
(b-1) determining at least one of the calibration values by determining a capacitance between the conductor and the shielding of the cabling, wherein the shielding is grounded, and the capacitance is dependent on a length of the cabling;

storing the calibration values;
operably connecting the cabling for communicating between the moisture sensitive sensor, and the data acquisition device;
monitoring a moisture content of drying lumber, including the substeps of:

(c-1) applying the excitation signal to the conductor of the cabling;
(c-2) obtaining one or more impedance related measurements of a circuit including the cabling, the sensor, and the lumber, wherein the at least one end of the cabling is operatively connected to one of the sensor, and data acquisition device;
(c-3) determining one or more enhanced impedance related values that are substantially independent of an impedance related to at least one length of the cabling, wherein at least one of the one or more enhanced impedance related values is determined as a function of a combination of: (i) one of the impedance related measurements, and (ii) one of the calibration values; and (c-4) using the enhanced impedance related values for estimating a moisture content of the drying lumber.
2. The method of Claim 1, wherein the cabling includes one or more cables whose combined length is greater than 50 feet in length.
3. The method of Claim 1, wherein the cabling includes one or more cables whose combined length is between 100 feet and 1000 feet in length.
4. The method of Claim 1, wherein the length of the cabling of (b-1), and the at least one length of the cabling of (c-3) are substantially a same portion of the cabling.
5. The method of Claim 1, wherein the step (c-2) includes obtaining a time series of the impedance related measurements, and the stored calibration values used in the step of determining (c-3) do not change in a time period for receiving the time series of impedance related measurements.
6. The apparatus of Claim 5, wlierein the time period includes one or more days.
7. The method of Claim 1, wherein for at least one sequential performance of the steps (c-1), (c-2), and (c-3), the step of configuring is not performed during the sequential performance.
8. The method of Claim 1, wherein the step of determining (c-3) includes determining a value that varies inversely with one of: (i) a difference between two voltages of the impedance related measurements, each of the voltages being for the conductor at points having a load resistor therebetween; and (ii) one of the calibration values indicative of a terminal impedance.
9. The method of Claim 1, wherein the configuring step includes providing at least one of the circuit configurations by operably connecting at least one length of the cabling to a signal measurement device excluded from the circuit for obtaining the impedance related measurements.
10. The method of Claim 9, wherein the excluded device includes one of: a calibration box generating a plurality of predetermined impedances, a device for measuring impedance characteristics of the at least one circuit configuration.
I L The method of Claim 1, wherein the second set of steps includes a step of balancing a bridge circuit included in one of the circuit configurations.
12. The method of Claim 1, wherein the step of determining (c-3) includes a step of balancing a bridge circuit included in one of the circuit configurations.
11 The method of Claim 1, wherein the step of determining (c-3) includes determining a difference between: (i) a capacitance of the impedance related measurements, and (ii) at least one of the calibration values that is dependent on a capacitance related to the at least one length of the cabling.
14. The method of Claim 1, wherein the step (b-1) includes a step of measuring, in one of the circuit configurations, the capacitance of the cabling, and in a second of the circuit configurations, measuring at least one of: a resistance of the cabling, and an inductance of the cabling.
15. The method of Claim 1, wherein at least one of the circuit configurations excludes one of: the sensor or the data acquisition device.
16. The method of Claim 1, wherein the step of configuring includes determining a terminal impedance at terminals to which the cabling attaches, wherein the cabling is detached from the terminals.
17. The method of Claim 1, wherein the stored calibration values includes at least one of: a terminal impedance, an impedance gain, an impedance offset, a phase gain, a phase offset, the capacitance for the cabling, a resistance for the cabling, an inductance for the cabling.
18. The method of Claim 17, wherein the stored calibration values includes at least some of: a terminal impedance, an impedance gain, an impedance offset, a phase gain, a phase offset, the capacitance of the cabling, a resistance of the cabling, an inductance of the cabling.
19. The method of Claim 1, wherein the stored calibration values includes at least most of: a terminal impedance, an impedance gain, an impedance offset, a phase gain, a phase offset.
20. The method of Claim 1, wherein the stored calibration values includes at least most of: the capacitance of the cabling, a resistance of the cabling, an inductance of the cabling.
21. The method of Claim 1, wherein the at least one calibration value determined in (a-2) is dependent upon a result of (a-2)(i) divided by (a-2)(ii).
22. The method of Claim 1, wherein for (a-2)(i), the impedance is determined using a terminal impedance at terminals for connecting to the cabling, wherein a first of the terminals is for connecting to the conductor, and a second of the terminals is for connecting to the shielding.

The method of Claim 22, wherein the first and second terminals have a load resistor operably connected therebetween.
23. The method of Claim 1, wherein the step of operably connecting and monitoring are performed after the step of second obtaining.
24. The method of Claim 1, wherein the step of operably connecting includes establishing signal communication between the sensor and the data acquisition device via the cabling.
25. The method of Claim 24, wherein the cabling includes two lengths of cabling having a multiplexer unit connected to an end of each of the two lengths of cabling, wherein communication between the sensor and the data acquisition device travels through the multiplexer unit.
26. The method of Claim 25, wherein the one or more enhanced impedance related values are substantially independent of the two lengths of cabling and the multiplexer unit.
27. The method of Claim 1, wherein the first set of steps includes repeating the following sequence of steps:

applying a predetermined impedance load to the cabling in one of the circuit configurations (CC);
determining a resulting measurements of the one circuit configuration CC;
determining an impedance load on the circuit configuration CC using the resulting measurements; and determining a value for one of the calibration values.
28. The method of Claim 1, wherein the step of second obtaining includes:
applying a predetermined impedance load to the cabling;
determining a resulting impedance load including an impedance of the cabling;
adjusting the resulting impedance load using at least one value (V) for one of the calibration values to obtain an adjusted impedance load; and comparing the resulting impedance load with the predetermined impedance load for determining whether the at least one value V is acceptable for use in monitoring the moisture content of the lumber.
29. The method of Claim 1, wherein the circuit from which the one or more impedance related measurements are obtained includes a voltage divider circuit.
30. The method of Claim 1, wherein the circuit from which the one or more impedance related measurements are obtained includes two cables, wherein one of the two cables is for transmitting the excitation signal, and the other of the two cables is for obtaining the one or more impedance related measurements.
31. The method of Claim 1, wherein for providing at least one of the circuit configurations, the configuring step includes operably connecting a device for determining at least one of an inductance, a capacitance, and a resistance to the cabling in the step of second obtaining, wherein the device is excluded from the circuit from which the one or more impedance related measurements are obtained in the step of second obtaining.
32. The method of Claim 1, wherein at least one of the circuit configurations includes a resistor-capacitor network circuit.
31 The method of Claim 1, wherein the conductive shielding is grounded.
34. The method of Claim 1, wherein the conductive shielding is excited.
35. The method of Claim 1, wherein the configuring step includes providing a first circuit configuration, wherein for an end (E) of the of the cabling that transmits signals between another end of the cabling and the sensor during the monitoring step, the conductor at the end E is grounded in the first circuit configuration.
36. The method of Claim 35, wherein the configuring step includes providing a second circuit configuration, wherein the end E of the cabling in the second configuration is provided in an open condition.
37. A method for determining parameters used in estimating a moisture content of lumber drying, wherein signals transmitted, via cabling, from a moisture sensitive sensor, are used to determine the lumber moisture content, comprising:
obtaining one or more values as values for a plurality of calibration parameters, the one or more values including at least one of:
(a) a first value indicative of a terminal impedance at terminals to which the cabling is connected, wherein a first of the terminals is connected to a conductor of the cabling, and a second of the terminals is connected to a shield of the cabling, the shield for shielding the conductor, and (b) a second value indicative of a capacitance of the cabling between the conductor and the shield along a length of the cabling;
determining at least an additional one of the value for one of the parameters of the plurality of calibration parameters using at least one of the first value and the second value, wherein the additional value is the other of the first and second values, or the additional value is indicative of at least one of:
(i) an impedance gain adjustment, (ii) an impedance offset adjustment, (iii) an impedance phase gain adjustment, (iv) an impedance phase offset adjustment, (v) an inductance of the cabling; and (vi) a resistance of the cabling;
storing the one or more values for the plurality of calibration parameters, wherein the stored one or more values are used to correct impedance values from a time series of the signals so that impedance values obtained from such correction are more indicative of the moisture in the lumber.
38. The method of Claim 37, wherein the cabling includes a length for one or more coaxial cables that is greater than 50 feet in length.
39. The method of Claim 37, wherein the cabling includes a length of one or more coaxial cables that is between 100 feet and 1000 feet in length.
40. The method of Claim 37, wherein the obtaining step includes obtaining the first value.
41. The method of Claim 40, wherein the determining step includes using the first value to determine the second value.
42. The method of Claim 40, wherein the determining step includes using the first value to determine at least two values, each of the at least two values indicative of a different of one of: (i) through (vi).
43. The method of Claim 42, wherein the storing step stores each of the at least two values as a value for a different one of the calibration parameters.
44. The method of Claim 42, wherein the determining step includes applying a plurality of predetermined impedance loads to the cabling for measuring a plurality of corresponding impedances for determining the at least two values.
45. The method of Claim 44, further including:
applying a predetermined impedance load to the cabling;
measuring a resulting impedance load including an impedance of the cabling;
adjusting the resulting impedance load using the stored values for the calibration parameters to obtain an adjusted impedance load; and comparing the adjusted impedance load with the predetermined impedance load for determining whether the values for the calibration parameters are acceptable for use in monitoring the moisture content of the lumber.
46. The method of Claim 37, wherein the plurality of calibration parameters includes at least two parameters, one of the two parameters having one of: the first value and the second value, and the other of the at least two parameters having a value indicative of one of (i) through (vi).
47. The method of Claim 46, wherein for each parameter of the at least two parameters, said determining step includes determining a value for the parameter using the first value.
48. The method of Claim 46, wherein for each of the at least two parameters, said determining step includes determining a value for the parameter using the second value.
49. The method of Claim 37, wherein the plurality of calibration parameters includes at least three parameters, at least two of the three parameters having a value indicative of a different one of (i) through (vi).
50. The method of Claim 37, wherein said obtaining step includes determining the first value from application of a predetermined capacitive load to the cabling, when the cabling is disconnected from a sensor from which the time series of signals is obtained.
51. The method of Claim 37, wherein said at least one additional value includes two values, wherein each of the two values is for of a different one of (i) through (vi).
52. A method for determining a moisture content of lumber drying, wherein signals transmitted, via cabling, from a moisture sensitive sensor, are used to determine the lumber moisture content, comprising:
obtaining cabling for signal communication between: (i) a moisture sensitive sensor for measuring a capacitance of a stack of lumber being dried in which the sensor is embedded, and (ii) a data acquisition device for generating an excitation signal provided to the sensor via the cabling, wherein the cabling include a conductor, and a conductive shielding surrounding the conductor;
connecting one end of the cabling to a device for providing a predetermined impedance load to the cabling, wherein the cabling is disconnected from at least one of the sensor, and the data acquisition device;
obtaining, while the device is connected to the cabling, one or more values, including at least one of the following values:
(a-1) a first value indicative of a terminal impedance at terminals to which the cabling is connected, wherein a first of the terminals connects to the conductor, and a second of the terminals connects to the conductive shielding, the shield, and (a-2) a second value indicative of a capacitance along at least one length of the cabling between the conductor and the conductive shielding;
storing the one or more values;
disconnecting the device from the cabling;

connecting the cabling for communicating between the moisture sensitive sensor, and the data acquisition device;
monitoring a moisture content of drying lumber, including the substeps of:
(b-1) applying an excitation signal to the conductor of at least one length of the cabling;
(b-2) obtaining one or more measurements of a circuit including the at least one length of the cabling, the sensor, and lumber;
(b-3) accessing the one or more stored values;
(b-4) determining one or more impedance values that are less dependent upon an impedance for the cabling, and more indicative of an impedance for the drying lumber than the one or more measurements, wherein the one or more impedance values are determined using one of: (i) the first value, and a difference between two voltages of the one or more measurements, and (ii) the second value, and a difference between a capacitance of the one or more measurements; and (b-5) using the one or more impedance values for estimating a moisture content of the drying lumber.
53. The method of Claim 52, wherein the cabling includes one or more cables having a combined length greater than 50 feet in length.
54. The method of Claim 52, wherein the cabling includes one or more cables having a combined length of cable between 100 feet and 1000 feet in length.
55. The method of Claim 52, wherein the circuit includes a voltage divider circuit.
56. The method of Claim 52, wherein the circuit includes separate cables for transmitting the excitation signal and obtaining the one or more measurements.
57. The method of Claim 52, wherein the circuit includes a bridge circuit.
58. The method of Claim 52, wherein the conductive shielding is grounded.
59. The method of Claim 52, wherein the conductive shielding is excited.
60. The method of Claim 52, wherein the one or more values includes the first value.
61. The method of Claim 60, wherein the determining step (b-4) includes determining an impedance by multiplying the first value by a first of the two voltages, and dividing by the difference in the two voltages.
62. The method of Claim 60, wherein the determining step (b-4) includes determining a current of the circuit by dividing the difference in voltages by the first value.
63. The method of Claim 60, further including determining at least one additional value of the one or more values using the first value, wherein the additional value is indicative of at least one of:
(i) an impedance gain adjustment, (ii) an impedance offset adjustment, (iii) an impedance phase gain adjustment, (iv) an impedance phase offset adjustment, (v) an inductance of the cabling; and (vi) a resistance of the cabling.
64. The method of Claim 60, further including determining at least one additional value of the one or more values using the first value, wherein the additional value is indicative the second value.
65. The method of Claim 64, wherein the determining step (b-4) includes determining a corrected resistance by subtracting from a resistance of the measurements at least one of: a value indicative a resistance of the cabling, and a value indicative an inductance of the cabling.
66. The method of Claim 52, wherein the one or more values includes the second value.
67. The method of Claim 66, further including determining at least one additional value of the one or more values using the second value, wherein the additional value is indicative of at least one of:
(i) an impedance gain adjustment, (ii) an impedance offset adjustment, (iii) an impedance phase gain adjustment, (iv) an impedance phase offset adjustment, (v) an inductance of the cabling; and (vi) a resistance of the cabling.
68. The method of Claim 66, further including determining the first value using the second value.
69. The method of Claim 52, wherein the step of determining (b-4) includes using the one or more stored values to repeatedly determine an instance of the impedance values for a time series of the signals from the circuit, wherein the time series spans at least a plurality of days.
70. A method for determining a moisture content of drying lumber in a kiln using a meter, wherein the meter receives signals from at least one capacitor plate of a pair of capacitor plates spaced apart by a portion of the lumber, and wherein the meter uses measurements of the signals to obtain values indicative of the moisture content of the lumber, comprising:
obtaining cabling for transmitting the signals from the at least one capacitor plate to the meter, wherein the cabling includes a signal conductor, and a conductive shielding surrounding the conductor;
subsequent to said step of obtaining, and for a circuit including at least one length of the cabling, determining a terminal impedance using at least two of:
(a) a predetermined capacitive load applied to the circuit, wherein the capacitive load is applied to the signal conductor of the at least one length of the cabling, and the shielding therefor;
(b) a voltage difference across a resistor operably connected between the signal conductor, and the shielding of the at least one length of the cabling;
(c) a capacitance between the signal conductor of the cabling, and the shielding of the at least one length of the cabling, the capacitance dependent on the at least one length of the cabling;
receiving, at the meter, the signals from the at least one capacitor plate;
generating adjusted measurements of the measurements of the signals using the terminal impedance, wherein the adjusted measurements have a reduced dependence on the at least one length of the cabling; and deriving, from the adjusted measurements, values indicative of the moisture content of the lumber.
71. An apparatus for determining a moisture content of lumber drying, wherein signals transmitted from a moisture sensitive sensor are used to determine the lumber moisture content, comprising:
one or more lengths of cabling for signal communication between: (1) a moisture sensitive sensor for measuring a capacitance of a stack of lumber being dried in which the sensor is embedded, and (2) a data acquisition device for receiving signals from the sensor in response to an excitation signal provided to the sensor via at least one of the lengths (L) of the cabling, wherein the at least one length of the cabling L
includes a conductor extending substantially an entire length of the at least one length of the cabling L, and a conductive shielding surrounding the conductor for substantially the entire length of the at least one length of the cabling L;
one or more circuit configurations, wherein each circuit configuration includes the one or more lengths of the cabling, and wherein one or more calibration values are obtained when a predetermined impedance load is applied to the circuit configuration, the one or more calibration values obtained by one of:
(a-1) determining (i) a first difference between the predetermined impedance loads for two of the circuit configurations, and (ii) a second difference between the corresponding impedance data for the different circuit configurations;
(a-2) determining at least one of the calibration values by determining a capacitance between the conductor and the shielding of the cabling, wherein the shielding is grounded, and the capacitance is dependent on a length of the cabling;
a data store for storing the one or more calibration values;
a signal measurement correction component, included in the data acquisition device or operably connected thereto, for:
(b-1) receiving a time series of impedance related measurements from a circuit including the one or more lengths of the cabling, the sensor, and the lumber when an excitation signal is applied to the conductor, and (b-2) determining a plurality of enhanced impedance related values that are substantially independent of an impedance related to the one or more lengths of the cabling, wherein each of the plurality of enhanced impedance related values is determined as a function of:
(i) one of the impedance related measurements, and (ii) one of the calibration values;
wherein the one or more enhanced impedance related values are used for estimating a moisture content of the lumber.
72. The apparatus of Claim 71, wherein for (a-1), the first and second difference are combined for obtaining at least one of the calibration values.
73. The apparatus of Claim 71, wherein for at least one of the circuit configurations, one of the lengths of cabling is configured differently from the circuit including the one or more lengths of the cabling, the sensor, and the lumber, wherein the one length of cabling.
74. The apparatus of Claim 71, wherein the data store includes one of a data file, and a database.
75. The apparatus of Claim 71, wherein the one or more lengths of cabling includes at least two lengths of cabling for a communication channel between the sensor, and the data acquisition device, wherein each of the two lengths of cabling are operably connected to a multiplexer.
76. The apparatus of Claim 75, wherein there are a plurality of communication channels, with each communication channel including two lengths of cabling for communicating between the data acquisition device and a corresponding sensor for the communication channel, and wherein the two lengths of cabling are operably connected to the multiplexer.
77. The apparatus of Claim 71, wherein for at least one of circuit configurations at least one end of one of the lengths of cabling is not operatively connected to one of the components: the sensor, and the data acquisition device, and the one length of cabling is operatively connected to the component in the circuit.
78. The apparatus of Claim 71, wherein the stored calibration values used in the step of determining (b-2) do not change in a time period for receiving the time series of impedance related measurements.
79. The apparatus of Claim 71, wherein the time period includes one or more days.
80. An apparatus for determining a moisture content of lumber drying, wherein signals transmitted from a moisture sensitive sensor are used to determine the lumber moisture content, comprising:
one or more lengths of cabling for signal communication between: (1) a moisture sensitive sensor for measuring a capacitance of a stack of lumber being dried in which the sensor is embedded, and (2) a data acquisition device for receiving signals from the sensor in response to an excitation signal provided to the sensor via at least one of the lengths (L) of the cabling, wherein the at least one length of the cabling L
includes a conductor extending substantially an entire length of the at least one length of the cabling L, and a conductive shielding surrounding the conductor for substantially the entire length of the at least one length of the cabling L;
one or more circuit configurations, wherein each circuit configuration includes the one or more lengths of the cabling, and wherein one or more calibration values are obtained when a predetermined impedance load is applied to the circuit configuration, the one or more calibration values obtained by one of:
(a-1) determining (i) a first difference between the predetermined impedance loads for two of the circuit configurations, and (ii) a second difference between the corresponding impedance data for the different circuit configurations;
(a-2) determining at least one of the calibration values by determining a capacitance between the conductor and the shielding of the cabling, wherein the shielding is grounded, and the capacitance is dependent on a length of the cabling;
a data store for storing the one or more calibration values;
signal measurement correction means, included in the data acquisition device or operably connected thereto, for:
(b-1) receiving a time series of impedance related measurements from a circuit including the one or more lengths of the cabling, the sensor, and the lumber when an excitation signal is applied to the conductor, and (b-2) determining a plurality of enhanced impedance related values that are substantially independent of an impedance related to the one or more lengths of the cabling, wherein each of the plurality of enhanced impedance related values is determined as a function of:
(i) one of the impedance related measurements, and (ii) one of the calibration values;
wherein the one or more enhanced impedance related values are used for estimating a moisture content of the lumber.
CA2673820A 2006-12-29 2007-04-27 Improved calibration and metering methods for wood kiln moisture measurement Active CA2673820C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/617,910 2006-12-29
US11/617,910 US7676953B2 (en) 2006-12-29 2006-12-29 Calibration and metering methods for wood kiln moisture measurement
PCT/US2007/067694 WO2008082681A1 (en) 2006-12-29 2007-04-27 Improved calibration and metering methods for wood kiln moisture measurement

Publications (2)

Publication Number Publication Date
CA2673820A1 true CA2673820A1 (en) 2008-07-10
CA2673820C CA2673820C (en) 2011-12-13

Family

ID=39585117

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2673820A Active CA2673820C (en) 2006-12-29 2007-04-27 Improved calibration and metering methods for wood kiln moisture measurement

Country Status (3)

Country Link
US (2) US7676953B2 (en)
CA (1) CA2673820C (en)
WO (1) WO2008082681A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7987614B2 (en) * 2004-04-12 2011-08-02 Erickson Robert W Restraining device for reducing warp in lumber during drying
US7963048B2 (en) * 2005-05-23 2011-06-21 Pollard Levi A Dual path kiln
WO2007027760A2 (en) 2005-08-30 2007-03-08 Troxler Electronic Laboratories, Inc. Methods, systems, and computer program products for determining a property of construction material
US7676953B2 (en) * 2006-12-29 2010-03-16 Signature Control Systems, Inc. Calibration and metering methods for wood kiln moisture measurement
CA2593873A1 (en) * 2007-07-12 2009-01-12 Hydro-Quebec Continuous high-frequency system and method for drying wood pieces
DE102008035658A1 (en) * 2008-07-31 2010-02-11 Kompetenzzentrum Strukturleichtbau E.V. Device for capacitive humidity measurement of composite structure i.e. laminated wood composite structure, has sensor provided with two sensor elements, where one of sensor elements is provided in contact with hygroscopic adhesive layer
US8266073B2 (en) * 2008-10-02 2012-09-11 Wagner Electronic Products, Inc. System for maximizing a value of lumber
IT1393470B1 (en) * 2009-03-09 2012-04-20 Microtec Srl METHOD FOR DETERMINING THE DEGREE OF HUMIDITY OF TIMBER
US8201501B2 (en) 2009-09-04 2012-06-19 Tinsley Douglas M Dual path kiln improvement
BE1019108A3 (en) * 2009-12-02 2012-03-06 Atlas Copco Airpower Nv METHOD FOR CONTROLLING A COMPOSITE DEVICE AND DEVICE IN WHICH THIS METHOD CAN BE APPLIED
US8781771B1 (en) * 2010-02-01 2014-07-15 Liebrecht Rudolph Venter Measurement of material properties
US8793010B2 (en) * 2010-04-29 2014-07-29 Weyerhaeser NR Company Method for reducing overall variability of moisture content in wood products
EP2387015A1 (en) 2010-05-05 2011-11-16 Fundacion Cidemco System for remotely monitoring the moisture content in wood elements
CA2859991A1 (en) * 2011-12-20 2013-06-27 Bry Air (Asia) Pvt. Ltd. Method and device for moisture determination and control
DE102012202595B3 (en) * 2012-02-21 2013-07-25 Osram Gmbh METHOD FOR TRANSMITTING CONTROL INFORMATION FROM A CONTROL DEVICE TO AN OPERATING DEVICE FOR AT LEAST ONE LIGHT SOURCE AND OPERATING DEVICE FOR AT LEAST ONE LIGHT SOURCE
EP2870423B1 (en) * 2012-07-04 2018-04-25 SCS Forest Products, Inc. Wireless in-kiln moisture sensor and system for use thereof
DE102012111892B4 (en) * 2012-12-06 2016-04-28 Christoph Grabolle Device for drying wood
US9541330B2 (en) 2013-07-17 2017-01-10 Whirlpool Corporation Method for drying articles
US20150047218A1 (en) * 2013-08-14 2015-02-19 Whirlpool Corporation Appliance for drying articles
US9194625B2 (en) * 2013-08-20 2015-11-24 Whirlpool Corporation Method for drying articles
US9784499B2 (en) 2013-08-23 2017-10-10 Whirlpool Corporation Appliance for drying articles
US9410282B2 (en) 2013-10-02 2016-08-09 Whirlpool Corporation Method and apparatus for drying articles
US9645182B2 (en) 2013-10-16 2017-05-09 Whirlpool Corporation Method and apparatus for detecting an energized E-field
US9546817B2 (en) 2013-12-09 2017-01-17 Whirlpool Corporation Method for drying articles
US9605899B2 (en) 2015-03-23 2017-03-28 Whirlpool Corporation Apparatus for drying articles
CN107643502A (en) * 2017-09-26 2018-01-30 广西电网有限责任公司电力科学研究院 A kind of high-voltage electrical apparatus detecting instrument check device
US10619921B2 (en) 2018-01-29 2020-04-14 Norev Dpk, Llc Dual path kiln and method of operating a dual path kiln to continuously dry lumber

Family Cites Families (389)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22894E (en) * 1947-07-01 Xwavemeter
US1567559A (en) * 1924-05-24 1925-12-29 Welch John Berchmans Drying wood, lumber, and the like
US1583376A (en) * 1924-12-05 1926-05-04 Welch John Berchmans Apparatus for drying and the like
US1593890A (en) * 1925-02-17 1926-07-27 Welch Dry Riln Company Apparatus for drying and the like
US2197823A (en) * 1935-04-22 1940-04-23 Young George Harold Moisture meter and controller
US2230119A (en) * 1937-02-18 1941-01-28 Cellulose Res Corp Process of producing wood cellulose
US2666897A (en) * 1948-06-28 1954-01-19 Weyerhaeuser Timber Co Method and apparatus for measuring moisture content
US2765219A (en) 1952-04-08 1956-10-02 Sun Oil Co Apparatus for measuring and controlling alkalinity of non-aqueous liquids
US2821682A (en) * 1954-12-03 1958-01-28 Leo H Bauer Moisture testing apparatus for lumber dry kiln
US2838424A (en) * 1955-07-20 1958-06-10 American Zinc Lead & Smelting Treatment of wood
US3041877A (en) * 1957-08-28 1962-07-03 Lignimpex Fa Papir Es Tuzeloan Device for the continuous determination of the drying capacity of free air
US2868673A (en) * 1958-03-07 1959-01-13 American Zinc Lead & Smelting Treatment of materials
US3151850A (en) * 1962-10-04 1964-10-06 Jr Walker L Wellford Kiln furnace
US3269715A (en) * 1964-04-02 1966-08-30 Jr Walker L Wellford Kiln furnace controller
SE325522B (en) * 1964-07-28 1970-06-29 Mo Och Domsjoe Ab
US3337526A (en) * 1965-10-15 1967-08-22 St Regis Paper Co Process for preparing arabinogalactan
US3425267A (en) * 1965-12-13 1969-02-04 Beloit Eastern Corp Hardness tester
US3440525A (en) * 1966-04-13 1969-04-22 Universal Interloc Inc Ph meter and control system
US3448530A (en) * 1967-03-21 1969-06-10 Aage W Mortensen Method and apparatus for conditioning logs to be cut into veneer
US3430357A (en) * 1967-05-17 1969-03-04 Weyerhaeuser Co Method of drying wood and moisture indicator
CH504661A (en) * 1967-07-20 1971-03-15 Pagnozzi Vincenzo Process and system for vacuum drying wood in boards or strips
US3523243A (en) * 1967-10-31 1970-08-04 Delmer W Wagner Moisture measurement device insensitive to thickness of material under test
US3510956A (en) * 1967-11-15 1970-05-12 Gann Apparateund Maschinenbau Method for drying wood shavings
GB1264318A (en) * 1968-09-06 1972-02-23
US3600676A (en) 1969-03-21 1971-08-17 Horst Nauditt Roland Sirenenba Moisture meter utilizing amplitude and bandwidth signals
US3593128A (en) 1969-05-21 1971-07-13 Weyerhaeuser Co Moisture-content-measuring system employing a separate bridge circuit for each sensing electrode thereof
US3614074A (en) * 1969-11-14 1971-10-19 Moore Dry Kiln Co Direct-fired kiln furnace control system
US3706980A (en) 1970-04-27 1972-12-19 Drexelbrook Controls Rf system for measuring the level of materials
US3714716A (en) * 1970-06-29 1973-02-06 Weyerhaeuser Co Process for kiln drying lumber by means of a predetermined drying rate
US3710062A (en) * 1971-04-06 1973-01-09 Environment One Corp Metal base cookware induction heating apparatus having improved power supply and gating control circuit using infra-red temperature sensor and improved induction heating coil arrangement
US4151387A (en) * 1971-04-06 1979-04-24 Environment/One Corporation Metal base cookware induction heating apparatus having improved power control circuit for insuring safe operation
US3887781A (en) * 1971-04-06 1975-06-03 Environment One Corp Metal base cookware induction heating apparatus having improved control circuit using infra-red temperature sensor
US3953783A (en) * 1971-04-06 1976-04-27 Environment/One Corporation Low cast chopper inverter power supply and gating circuit therefor
US3753092A (en) 1971-04-08 1973-08-14 Johanna Plastics Inc Liquid testing device for measuring changes in dielectric properties
US3781672A (en) 1971-05-10 1973-12-25 Drexelbrook Controls Continuous condition measuring system
US3778705A (en) 1971-05-24 1973-12-11 Drexelbrook Controls Susceptance measuring system for indicating condition of a material
US3746975A (en) 1971-08-20 1973-07-17 Drexelbrook Controls Measuring characteristics of materials by using susceptive and conductive components of admittance
US3748578A (en) * 1971-10-13 1973-07-24 D Ward Wood veneer moisture detection equipment located on a production line
US3781671A (en) * 1972-02-24 1973-12-25 F Preikschat Impedance measuring bridge circuit
US3791792A (en) 1972-03-29 1974-02-12 Northrop Corp Polymer cure determination method
US3807055A (en) 1973-04-23 1974-04-30 Natural Resources Inc Method and apparatus for measuring the moisture content of wood
US3824461A (en) * 1973-09-10 1974-07-16 F Preikschat Electrical impedance measuring apparatus
US3992665A (en) * 1973-09-10 1976-11-16 Preikschat F K Electrical impedance measuring apparatus
US4344142A (en) 1974-05-23 1982-08-10 Federal-Mogul Corporation Direct digital control of rubber molding presses
US4107599A (en) 1974-06-26 1978-08-15 Preikschat F K Electrode for an impedance measuring apparatus
US3985712A (en) 1975-02-12 1976-10-12 Owens-Corning Fiberglas Corporation Method and apparatus for preparing intermediate polyester resin
CA1095663A (en) * 1975-02-12 1981-02-17 John Gordy Pulping process
JPS51122261A (en) * 1975-04-16 1976-10-26 Keiichiro Ishida Loading apparatus
JPS5296096A (en) * 1976-02-06 1977-08-12 Matsushita Electric Ind Co Ltd Water-content detecting apparatus
US4020785A (en) * 1976-05-19 1977-05-03 Palmer Walter E Plant moisture indicator
US4389578A (en) 1976-07-06 1983-06-21 Wagner Delmer W Controlled gate circuit
US4176464A (en) * 1978-01-26 1979-12-04 Randolph George J J Method and apparatus for the controlled drying of lumber and the like
US4213404A (en) * 1978-11-09 1980-07-22 Energy Alternatives, Inc. Solid refuse furnace
US4259151A (en) * 1978-11-22 1981-03-31 New Fibers International Pulping apparatus
US4182794A (en) * 1978-11-27 1980-01-08 The Dow Chemical Company Method for applying a fire-retardant composition to wood
JPS62110743A (en) 1979-02-28 1987-05-21 Sumitomo Rubber Ind Ltd Control method for equivalent reaction amount
US4433286A (en) 1979-04-09 1984-02-21 Georgetown University Identification of materials using their complex dielectric response
US4250628A (en) * 1979-06-21 1981-02-17 Smith Richard D Microwave fabric dryer method and apparatus
US4261525A (en) 1979-07-26 1981-04-14 Wagner Delmer W Moisture measuring apparatus
DE2932445A1 (en) 1979-08-10 1981-02-26 Troester Maschf Paul Determining crosslinking rate of rubber or plastics prods. - using crosslinking agent with variable polarity and measuring dielectric constant prior to and after crosslinking
US4377783A (en) 1979-10-15 1983-03-22 Wagner Delmer W Moisture detector
US4373010A (en) * 1980-10-14 1983-02-08 Koppers Company, Inc. Non-resinous, uncured tire retardant and products produced therewith
US4338163A (en) 1980-12-03 1982-07-06 Eltra Corporation Curing of tetrabasic lead pasted battery electrodes
US4331516A (en) 1980-12-03 1982-05-25 Eltra Corporation Curing of tetrabasic lead pasted battery electrodes
US4381250A (en) 1980-12-03 1983-04-26 Allied Corporation Curing of tetrabasic lead pasted battery electrodes
US4356641A (en) * 1980-12-15 1982-11-02 Armstrong World Industries Kiln control system
US4373092A (en) 1980-12-29 1983-02-08 Lockheed Corporation Method of process control for thermosetting resins having addition-type reactions
US4399100A (en) 1980-12-29 1983-08-16 Lockheed Corporation Automatic process control system and method for curing polymeric materials
US4496697A (en) 1980-12-29 1985-01-29 Lockheed Corporation Automatic process control system for curing polymeric material
US4515545A (en) 1981-07-09 1985-05-07 Applied Polymer Technology, Inc. Control system for processing composite material
US4423371A (en) 1981-09-03 1983-12-27 Massachusetts Institute Of Technology Methods and apparatus for microdielectrometry
ZA828688B (en) 1981-11-27 1983-09-28 Beecham Group Plc Novel compounds
JPS58103361U (en) 1981-12-29 1983-07-14 横河電機株式会社 Conductivity measuring device
US4431405A (en) * 1982-02-23 1984-02-14 Down River International, Inc. Gas pollution control apparatus and method and wood drying system employing same
US4448943A (en) 1982-05-03 1984-05-15 General Electric Company Method for measuring polymerization process variables
US4510436A (en) 1982-07-15 1985-04-09 Southwest Medical Products, Incorporated Dielectric measuring systems
US4580233A (en) 1982-09-22 1986-04-01 Weyerhaeuser Company Method of measuring moisture content of dielectric materials
JPS5957731A (en) 1982-09-28 1984-04-03 Agency Of Ind Science & Technol Method of molding resin type composite material
US4616425A (en) 1983-01-27 1986-10-14 Iowa State University Research Foundation Moisture measurement apparatus and method
DE3306462A1 (en) * 1983-02-24 1984-08-30 Gann Meß- u. Regeltechnik GmbH, 7000 Stuttgart ELECTRIC HUMIDITY DETECTOR
SE451633B (en) * 1983-05-18 1987-10-19 Stora Kopparbergs Bergslags Ab PROCEDURE AND DEVICE FOR DETERMINING RELATIVE MOISTURE IN HIGH HUMID GAS
US4551807A (en) 1983-08-17 1985-11-05 Lord Corporation Cure-control method for thermosetting polymeric material
DE3331305A1 (en) 1983-08-31 1985-03-14 Gann Meß- u. Regeltechnik GmbH, 7000 Stuttgart DIELECTRIC MOISTURE METER
US4546438A (en) 1983-09-27 1985-10-08 The Goodyear Tire & Rubber Company Rheometer and process of curing and testing rubber
US4777604A (en) * 1984-01-25 1988-10-11 Robinson John W Method and apparatus for controlling batch dryers
CA1189192A (en) * 1984-03-14 1985-06-18 Michael R. Clarke Method and apparatus for rapidly determining the moisture content of a substance
US4620373A (en) * 1984-07-23 1986-11-04 Laskowski Donald R Dry kiln and method
US4683418A (en) 1984-08-06 1987-07-28 Wagner Electronic Products, Inc. Moisture measuring method and apparatus
US4551103A (en) 1984-11-15 1985-11-05 Mickey Green Farm products agricultural game
US4723908A (en) 1985-05-01 1988-02-09 Kranbuehl David E Dielectric probe; method and apparatus including its use
JPH05984Y2 (en) 1985-12-25 1993-01-12
SE453018B (en) 1986-02-13 1988-01-04 Skega Ab METHOD AND APPARATUS FOR DETERMINING THE BASIC VALUE OF A MATERIAL TEST FOR ANALYSIS OF THE VULK CHARACTERISTICS OF THE MATERIAL
US5024091A (en) * 1986-03-25 1991-06-18 Washington State University Research Foundation, Inc. Non-destructive evaluation of structural members
US4777431A (en) 1986-06-27 1988-10-11 Micromet Instruments, Inc. Apparatus for monitoring dielectric changes in polymeric materials
US4676101A (en) 1986-09-03 1987-06-30 Walbro Corporation Capacitance-type material level indicator
US4896098A (en) 1987-01-08 1990-01-23 Massachusetts Institute Of Technology Turbulent shear force microsensor
JPS63251466A (en) 1987-04-06 1988-10-18 Shin Etsu Chem Co Ltd Thermally conductive liquid silicone rubber composition
US4777336A (en) * 1987-04-22 1988-10-11 Michigan State University Method for treating a material using radiofrequency waves
US4773021A (en) 1987-07-31 1988-09-20 General Electric Company Adaptive model-based pressure control and method of resin cure
US4814690A (en) 1987-10-02 1989-03-21 Massachusetts Institute Of Technology Apparatus and methods for measuring permittivity in materials
FR2621694B1 (en) 1987-10-12 1993-11-12 Institut Francais Petrole METHOD AND DEVICE FOR THE CHARACTERIZATION BY ITS GEL RATE OF A SAMPLE OF CROSSLINKED PLASTIC MATERIAL
US4827872A (en) * 1988-01-27 1989-05-09 Sommers William R Animal shelter
US5032525A (en) 1988-03-31 1991-07-16 United States Of America As Represented By The Secretary Of The Air Force Qualitative process automation for autoclave cure of composite parts
US5354695A (en) * 1992-04-08 1994-10-11 Leedy Glenn J Membrane dielectric isolation IC fabrication
US4881025A (en) 1988-09-26 1989-11-14 Trustees Of The Diotec Trust Frequency dependent identification of materials
US4953298A (en) * 1989-02-24 1990-09-04 Wagner Electronic Products, Inc. Kiln controller
FR2645275B1 (en) 1989-03-28 1992-05-22 Bartolo Rene METHOD AND APPARATUS FOR CONTROLLING POLYMERIZATION, AND SENSOR FOR IMPLEMENTING SAME
JP2779962B2 (en) * 1989-11-13 1998-07-23 宮城県 Drying method for wood etc.
US5129267A (en) * 1990-03-01 1992-07-14 Southwest Research Institute Flow line sampler
US5184077A (en) 1990-04-05 1993-02-02 G-C Acquisition, Inc. Abrasion-resistant, high pressure dielectric sensors
GB9013665D0 (en) * 1990-06-19 1990-08-08 Mining Industry Research Organ Method for mine support & composition
US5569591A (en) 1990-08-03 1996-10-29 University College Of Wales Aberystwyth Analytical or monitoring apparatus and method
US5212453A (en) * 1990-08-03 1993-05-18 Imko Micromodultechnik Gmbh Pulse echo method and apparatus for measuring the moisture content of materials
US5168681A (en) * 1990-08-20 1992-12-08 Horsel Plc Prestressed wood floor system
US5208544A (en) 1990-09-26 1993-05-04 E. I. Du Pont De Nemours And Company Noninvasive dielectric sensor and technique for measuring polymer properties
US5210499A (en) 1990-11-16 1993-05-11 The United States Of America As Represented By The Secretary Of The Army In-situ sensor method and device
JP2552961B2 (en) * 1991-03-04 1996-11-13 兵五 泉 Wood drying method capable of converting wind force and pressure according to changes in water content
US5206544A (en) * 1991-04-08 1993-04-27 International Business Machines Corporation CMOS off-chip driver with reduced signal swing and reduced power supply disturbance
US5223796A (en) 1991-05-28 1993-06-29 Axiomatics Corporation Apparatus and methods for measuring the dielectric and geometric properties of materials
US5192587A (en) * 1991-08-23 1993-03-09 Kurtz Bros., Inc. Method for coloring wood chips
CN1071937A (en) 1991-10-29 1993-05-12 阿克佐公司 Tire and adhesive tape compositions
US5219498A (en) 1991-11-12 1993-06-15 Keller L Brian Process for controlling curing and thermoforming of resins and composites
US5453689A (en) 1991-12-06 1995-09-26 Massachusetts Institute Of Technology Magnetometer having periodic winding structure and material property estimator
US5283731A (en) 1992-01-19 1994-02-01 Ec Corporation Computer-based classified ad system and method
US5269076A (en) * 1992-01-27 1993-12-14 U.S. Natural Resources, Inc. Balanced draft vent system for kiln
US5291422A (en) * 1992-01-28 1994-03-01 Sgi International Broadband instrument for nondestructive measurement of material properties
US5207956A (en) 1992-02-05 1993-05-04 The Board Of Regents Of The University Of Oklahoma Computer-controlled method for composite curing
US5307679A (en) * 1992-03-25 1994-05-03 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for evaluating the drying properties of un-dried wood
US5919242A (en) * 1992-05-14 1999-07-06 Agri-Line Innovations, Inc. Method and apparatus for prescription application of products to an agricultural field
US5345170A (en) * 1992-06-11 1994-09-06 Cascade Microtech, Inc. Wafer probe station having integrated guarding, Kelvin connection and shielding systems
US6380751B2 (en) * 1992-06-11 2002-04-30 Cascade Microtech, Inc. Wafer probe station having environment control enclosure
AU4642093A (en) * 1992-06-18 1994-01-24 Harald Philipp Hands-free water flow control apparatus and method
US5201956A (en) 1992-06-26 1993-04-13 Specialty Coating Systems Inc. Cellular tumble coater
US5784631A (en) * 1992-06-30 1998-07-21 Discovision Associates Huffman decoder
US5693296A (en) * 1992-08-06 1997-12-02 The Texas A&M University System Calcium hydroxide pretreatment of biomass
US5865898A (en) * 1992-08-06 1999-02-02 The Texas A&M University System Methods of biomass pretreatment
US5334941A (en) * 1992-09-14 1994-08-02 Kdc Technology Corp. Microwave reflection resonator sensors
US5317252A (en) 1992-09-15 1994-05-31 Kranbuehl David E Dosimeter for monitoring the condition of polymeric materials and chemical fluids
US5432435A (en) 1992-09-22 1995-07-11 Brigham Young University Detection of cross-linking in pre-cure stage polymeric materials by measuring their impedance
US5635845A (en) 1992-09-22 1997-06-03 Brigham Young University Detection of cross-linking in pre-cure stage polymeric materials by measuring their resistance
US5394097A (en) * 1992-11-24 1995-02-28 Bechtel; Friend K. Dielectric sensor
US5736197A (en) * 1992-11-30 1998-04-07 Poly-Wall International, Inc. Method of waterproofing rigid structural materials
US5325604A (en) * 1992-12-17 1994-07-05 The University Of Tennessee Research Corporation Automatic control system for wood drying kiln
US5402076A (en) * 1992-12-18 1995-03-28 Wagner Electronic Products, Inc. Meter with probe for measuring the moisture content of stacked wood
US5442293A (en) * 1992-12-21 1995-08-15 Lange; James N. Method and apparatus for determining fluid content and conductivity in porous materials
US5457394A (en) * 1993-04-12 1995-10-10 The Regents Of The University Of California Impulse radar studfinder
JPH07159028A (en) * 1993-12-08 1995-06-20 Yamamoto Tekkosho:Kk Heating plate drying method for platelike material
JPH07198642A (en) 1993-12-28 1995-08-01 Bridgestone Corp Vulcanization characteristic tester incorporating function for measuring electrical resistance of rubber composite
US5486319A (en) 1993-12-29 1996-01-23 Bridgestone/Firestone, Inc. Tire cure control system and method
US5504281A (en) * 1994-01-21 1996-04-02 Minnesota Mining And Manufacturing Company Perforated acoustical attenuators
AU2060495A (en) 1994-02-01 1995-08-21 Wyatt, Tracy A. Control of plastic laminate curing press
US5528155A (en) 1994-04-29 1996-06-18 Massachusetts Institute Of Technology Sensor for measuring material properties
US5459406A (en) 1994-07-01 1995-10-17 Cornell Research Foundation, Inc. Guarded capacitance probes for measuring particle concentration and flow
US5507988A (en) * 1994-07-12 1996-04-16 Eagan; Thomas G. Process and apparatus for forming a building block
DE4424832A1 (en) * 1994-07-14 1996-01-18 Messer Griesheim Gmbh Method of conserving wood in forest
WO1996015893A1 (en) 1994-11-17 1996-05-30 Bando Kagaku Kabushiki Kaisha Vulcanization method and apparatus
US5950326A (en) * 1995-02-03 1999-09-14 Scott; James Barry Method and apparatus for renewing a roof system
US5647364A (en) * 1995-02-15 1997-07-15 Ultra-Scan Corporation Ultrasonic biometric imaging and identity verification system
US5621391A (en) * 1995-02-15 1997-04-15 Wagner Electronic Products Co., Inc. Wood moisture content measuring probe
US5521515A (en) 1995-02-17 1996-05-28 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Frequency scanning capaciflector for capacitively determining the material properties
US6703847B2 (en) * 1995-03-15 2004-03-09 Liebrecht Venter Determining the dielectric properties of wood
CA2215191C (en) 1995-03-15 2007-01-09 Liebrecht Rudolph Venter Determining the dielectric properties of wood
US5680315A (en) 1995-03-20 1997-10-21 Pirelli Coordinamento Pneumatici S.P.A. System for optimizing cure and assuring quality of reversion susceptible rubber articles
JP3451789B2 (en) 1995-04-13 2003-09-29 日本原子力研究所 Method for measuring the progress of crosslinking reaction of rubber by electrical property values
US6602248B1 (en) * 1995-06-07 2003-08-05 Arthro Care Corp. Methods for repairing damaged intervertebral discs
US6329139B1 (en) * 1995-04-25 2001-12-11 Discovery Partners International Automated sorting system for matrices with memory
US5605290A (en) * 1995-06-02 1997-02-25 The Lektrox Company Apparatus and method for particle size classification and measurement of the number and severity of particle impacts during comminution of wood chips, wood pulp and other materials
US5585732A (en) * 1995-06-07 1996-12-17 Mississippi State University Detector for heterogeneous materials
JP3449726B2 (en) 1995-07-11 2003-09-22 日本ゼオン株式会社 Conductive rubber composition and method for producing the same
DE19536766A1 (en) 1995-10-02 1997-04-03 Somos Gmbh Procedure for the determination of specific material characteristics
US6411106B1 (en) * 1995-11-29 2002-06-25 Industrial Research Limited Method and apparatus for moisture sensing using microwave technologies
US5694821A (en) * 1995-12-08 1997-12-09 Simonds Industries, Inc. Method for controlling work feed rate for cutting wood, metal and other materials
US6023879A (en) * 1996-03-06 2000-02-15 Katz; Harry Method of controlling subterranean termites and associated apparatus
JP2757170B2 (en) * 1996-04-09 1998-05-25 有限会社山本家具製作所 Wood treatment method and equipment
US5775003A (en) * 1996-05-24 1998-07-07 U.S. Natural Resources, Inc. Portable sensor for dry kiln sampling
EP0810082B1 (en) 1996-05-28 2002-12-11 Semperit Reifen Gesellschaft m.b.H- Process and apparatus for vulcanizing tyres
US5970624A (en) * 1996-06-04 1999-10-26 Common Facility Co-Operatives Forest Nishikawa Method of drying wood and method of subjecting wood to impregnative treatment
SE511602C2 (en) * 1996-06-17 1999-10-25 Dynalyse Ab Method and apparatus for destructive classification of preferably elongated and / or disc-shaped objects
US5687490A (en) * 1996-08-01 1997-11-18 Harrison; Jack B. Method of drying lumber
US5992048A (en) * 1996-09-30 1999-11-30 The Board Of Trustees Of University Of Arkansas Solar drying process and apparatus
US5915811A (en) * 1996-09-30 1999-06-29 The Board Of Trustees Of The University Of Arkansas Solar drying process and apparatus
CA2269932C (en) * 1996-10-30 2002-12-31 Tarren Wood Products, Inc. Method of pressure treating boards
US5996006A (en) 1996-11-08 1999-11-30 Speicher; Gregory J. Internet-audiotext electronic advertising system with enhanced matching and notification
US6242726B1 (en) * 1996-11-21 2001-06-05 George M. Harris Adjustable microwave field stop
US5756975A (en) * 1996-11-21 1998-05-26 Ewes Enterprises Apparatus and method for microwave curing of resins in engineered wood products
US5874832A (en) 1996-12-20 1999-02-23 Raytheon Company Precise high resolution non-contact method to measure dielectric homogeneity
US5866442A (en) * 1997-01-28 1999-02-02 Micron Technology, Inc. Method and apparatus for filling a gap between spaced layers of a semiconductor
JPH10239264A (en) 1997-02-25 1998-09-11 Sanriki Kogyo Kk Electric resistance type moisture sensor
US6055915A (en) * 1997-04-04 2000-05-02 Bickell; Roy A. Wood residue disposal system
JPH10286212A (en) * 1997-04-11 1998-10-27 Mitsubishi Electric Corp Dish washing and drying machine
US6182610B1 (en) * 1997-04-28 2001-02-06 The One Step Corporation Animal confinement shelter with accelerated decomposition of waste
US5911195A (en) * 1997-04-28 1999-06-15 The One Step Corporation Apparatus for raising pigs including waste management and recycling
US20020046712A1 (en) * 1997-04-28 2002-04-25 Herman Tripp Method and apparatus for animal waste composting
US6281801B1 (en) 1997-06-04 2001-08-28 Bechtel Bwxt Idaho, Llc System and method for monitoring water content or other dielectric influences in a medium
US6002263A (en) * 1997-06-06 1999-12-14 Cascade Microtech, Inc. Probe station having inner and outer shielding
US5872447A (en) 1997-09-10 1999-02-16 Hager, Iii; Nathaniel E. Method and apparatus for in-situ measurement of polymer cure status
US5927359A (en) * 1997-10-09 1999-07-27 Kersten; Donald System and method for recycling scrap lumber
DE19748035A1 (en) 1997-10-30 1999-05-06 Pirelli Reifenwerke Method and device for controlling or regulating the vulcanization process during vulcanization
CA2251526C (en) * 1997-11-07 2006-12-05 Simonds Industries, Inc. Method for variably controlling work feed rate for cutting wood, metal and other materials
US6117643A (en) * 1997-11-25 2000-09-12 Ut Battelle, Llc Bioluminescent bioreporter integrated circuit
FR2772483B1 (en) * 1997-12-15 2000-01-14 Inst Francais Du Petrole METHOD FOR MODELING FLUID DISPLACEMENTS IN A POROUS MEDIUM
US6122599A (en) * 1998-02-13 2000-09-19 Mehta; Shailesh Apparatus and method for analyzing particles
US6272437B1 (en) * 1998-04-17 2001-08-07 Cae Inc. Method and apparatus for improved inspection and classification of attributes of a workpiece
US6657173B2 (en) * 1998-04-21 2003-12-02 State Board Of Higher Education On Behalf Of Oregon State University Variable frequency automated capacitive radio frequency (RF) dielectric heating system
US6303166B1 (en) * 1998-04-21 2001-10-16 The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Capacative dielectric heating system
US6114863A (en) 1998-04-29 2000-09-05 General Electric Company Method for determining the presence of water in materials
US6323659B1 (en) 1998-04-29 2001-11-27 General Electric Company Material for improved sensitivity of stray field electrodes
US6175752B1 (en) * 1998-04-30 2001-01-16 Therasense, Inc. Analyte monitoring device and methods of use
US6072890A (en) * 1998-05-06 2000-06-06 Forintek Canada Corp. Automatic lumber sorting
EP1050888B1 (en) 1998-08-28 2010-10-06 Panasonic Corporation Conductive paste, conductive structure using the same, electronic part, module, circuit board, method for electrical connection, method for manufacturing circuit board, and method for manufacturing ceramic electronic part
US20040128712A1 (en) * 2000-02-17 2004-07-01 Cai-Zhong Jiang Methods for modifying plant biomass and abiotic stress
US6313646B1 (en) * 1999-02-02 2001-11-06 Dacco Sci, Inc. In-situ electrochemical-based moisture sensor for detecting moisture in composite and bonded structures
US6178834B1 (en) * 1999-02-19 2001-01-30 Entomobiotics Inc. System and method of detecting, concentrating and suppressing subterranean termites
US6439069B1 (en) * 1999-02-19 2002-08-27 Entomobiotics, Inc. Method and apparatus for detecting subterranean termites
US6189393B1 (en) * 1999-02-19 2001-02-20 Entomobiotics Inc. Method and apparatus for detecting subterranean termites
GB2347220B (en) * 1999-02-23 2003-12-31 Rynhart Res Ltd A moisture meter
US6141888A (en) * 1999-03-08 2000-11-07 Delmhorst Instrument Co. Monitoring wood sample weight with mechanical force proportioning
US20020177135A1 (en) * 1999-07-27 2002-11-28 Doung Hau H. Devices and methods for biochip multiplexing
US20020062545A1 (en) * 1999-05-05 2002-05-30 Siegfried Niedermair Coated timber and method of manufacturing same
AU5043900A (en) * 1999-05-24 2000-12-12 Mayo Foundation For Medical Education And Research Adenovirus vectors encoding brain natriuretic peptide
US20050013727A1 (en) * 2002-12-05 2005-01-20 Hedman David E. System and process for removing or treating harmful biological and organic substances within an enclosure
US7837932B2 (en) * 1999-05-28 2010-11-23 Thermapure, Inc. Method for removing or treating harmful biological organisms and chemical substances
US8256135B2 (en) * 1999-05-28 2012-09-04 Thermapure, Inc. Method for removing or treating harmful biological and chemical substances within structures and enclosures
US8221678B2 (en) * 2002-02-20 2012-07-17 Hedman David E System and process for removing or treating harmful biological and organic substances within an enclosure
CA2273541A1 (en) * 1999-06-03 2000-12-03 Canadian Forest Products Ltd. A method of lumber preparation to improve drying and treatment and development of a new engineered wood composite
US6124584A (en) 1999-06-18 2000-09-26 Heatwave Drying Systems Inc Moisture measurement control of wood in radio frequency dielectric processes
US6327910B1 (en) * 1999-06-25 2001-12-11 Frank C. Beall Special sticker and procedure for detecting acoustic emission (AE) or ultrasonic transmission during drying of lumber
JP3560858B2 (en) 1999-07-12 2004-09-02 株式会社東芝 Resin casting machine
US7128270B2 (en) * 1999-09-17 2006-10-31 Silverbrook Research Pty Ltd Scanning device for coded data
US7605940B2 (en) * 1999-09-17 2009-10-20 Silverbrook Research Pty Ltd Sensing device for coded data
US8416468B2 (en) * 1999-09-17 2013-04-09 Silverbrook Research Pty Ltd Sensing device for subsampling imaged coded data
US6490501B1 (en) 1999-10-06 2002-12-03 Bell Helicopter Textron Inc. Cure monitoring and control system
US6234008B1 (en) * 1999-12-08 2001-05-22 Massachusetts Institute Of Technology Method and apparatus for the direct measurement of moisture characteristics of porous samples of soil, wood, concrete and the like
US6524442B2 (en) * 1999-12-29 2003-02-25 Kimberly-Clark Worldwide, Inc. Apparatus for forming and metering fluff pulp
US6943678B2 (en) * 2000-01-24 2005-09-13 Nextreme, L.L.C. Thermoformed apparatus having a communications device
US6249988B1 (en) * 2000-02-24 2001-06-26 Wyoming Sawmills, Inc. Particulate drying system
JP4744704B2 (en) 2000-03-16 2011-08-10 株式会社東芝 Method for manufacturing wear-resistant member
US6607619B1 (en) * 2000-03-17 2003-08-19 Georgia-Pacific Resins, Inc. Catalyzation of thermoset resin adhesives for wood composites using computerized in-line metering and mixing equipment
US6886618B2 (en) * 2000-03-17 2005-05-03 Georgia-Pacific Resins, Inc. System for catalyzation of thermoset resin adhesives for wood composites using computerized in-line metering and mixing equipment
US6691563B1 (en) * 2000-04-11 2004-02-17 The United States Of America As Represented By The Department Of Agriculture Universal dielectric calibration method and apparatus for moisture content determination in particulate and granular materials
US6690320B2 (en) * 2000-06-13 2004-02-10 Magnetrol International Incorporated Time domain reflectometry measurement instrument
US7202613B2 (en) * 2001-05-30 2007-04-10 Color Kinetics Incorporated Controlled lighting methods and apparatus
US6606568B2 (en) * 2000-06-28 2003-08-12 Midwest Research Institute Method for predicting dry mechanical properties from wet wood and standing trees
US6525319B2 (en) * 2000-12-15 2003-02-25 Midwest Research Institute Use of a region of the visible and near infrared spectrum to predict mechanical properties of wet wood and standing trees
FR2811760B1 (en) * 2000-07-17 2002-09-13 Inst Francais Du Petrole METHOD FOR MODELING FLUID DISPLACEMENTS IN A POROUS MEDIUM TAKING ACCOUNT OF HYSTERESIS EFFECTS
JP2002046108A (en) * 2000-08-01 2002-02-12 Nagai Kikai Seisakusho:Kk Dryer for wood
US6466168B1 (en) * 2000-08-17 2002-10-15 Mcewen Technologies, Llc Differential time of flight measurement system
US6965226B2 (en) * 2000-09-05 2005-11-15 Cascade Microtech, Inc. Chuck for holding a device under test
AU2001290387B2 (en) 2000-09-25 2006-09-28 Windsor Engineering Group Limited Timber drying kiln
AU2002212851C1 (en) * 2000-10-11 2006-11-02 New Zealand Forest Research Institute Limited Microwave moisture sensing via waveguide with slot array
US6472885B1 (en) 2000-10-16 2002-10-29 Christopher Charles Green Method and apparatus for measuring and characterizing the frequency dependent electrical properties of dielectric materials
JP2002174618A (en) * 2000-12-07 2002-06-21 Matsushita Electric Ind Co Ltd Solid electrolyte gas sensor
US6593572B2 (en) * 2000-12-13 2003-07-15 Midwest Research Institute Method of predicting mechanical properties of decayed wood
US6773545B2 (en) * 2000-12-26 2004-08-10 Kimberly-Clark Worldwide, Inc. Method of forming and metering fluff pulp
US6586483B2 (en) * 2001-01-08 2003-07-01 3M Innovative Properties Company Foam including surface-modified nanoparticles
NZ527569A (en) * 2001-01-31 2005-11-25 Univ Michigan Tech System for and method of performing evaluation techniques on a log or round timber
US6447639B1 (en) * 2001-03-05 2002-09-10 Sita Ruby Warren Process for controlling a digester using real time measurement of moisture content and species of wood
US20040133301A1 (en) 2002-07-09 2004-07-08 Signature Control Systems Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds
US7167773B2 (en) 2001-03-21 2007-01-23 Signature Control Systems Process and apparatus for improving and controlling the curing of natural and synthetic moldable compounds
US6774643B2 (en) 2001-03-21 2004-08-10 Signature Control Systems Non-bridged single electrode impedance measurement system for determining a condition of a dielectric according to impedance related changes over a range of frequencies
US6855791B2 (en) 2002-07-09 2005-02-15 Signature Control Systems Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds
US7245985B2 (en) * 2001-03-21 2007-07-17 Signature Control Systems Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds
EP1381642A1 (en) * 2001-04-26 2004-01-21 Washington State University Research Foundation Low-density cellular wood plastic composite and process for formation
US7186102B2 (en) * 2001-04-26 2007-03-06 Strandex Corporation Apparatus and method for low-density cellular wood plastic composites
US7149597B2 (en) * 2001-05-29 2006-12-12 John Billings Process control system and method
CA2450894A1 (en) * 2001-06-15 2002-12-27 Mississippi State University Through-log density detector
US20030117321A1 (en) * 2001-07-07 2003-06-26 Furse Cynthia M. Embedded antennas for measuring the electrical properties of materials
AU2002326360A1 (en) * 2001-07-11 2003-01-29 Black And Decker Inc. Power tool safety mechanisms
US7220365B2 (en) * 2001-08-13 2007-05-22 New Qu Energy Ltd. Devices using a medium having a high heat transfer rate
US6831468B2 (en) * 2001-09-04 2004-12-14 Technical Development Consultants, Inc. Method and apparatus for determining moisture content and conductivity
US6485296B1 (en) * 2001-10-03 2002-11-26 Robert J. Bender Variable moisture biomass gasification heating system and method
US6747461B2 (en) 2001-10-25 2004-06-08 Pioneer Hi-Bred International, Inc. Apparatus and method for monitoring drying of an agricultural porous medium such as grain or seed
US8012889B2 (en) * 2001-11-07 2011-09-06 Flexform Technologies, Llc Fire retardant panel composition and methods of making the same
US20040210289A1 (en) * 2002-03-04 2004-10-21 Xingwu Wang Novel nanomagnetic particles
US6784671B2 (en) * 2002-02-04 2004-08-31 Mississippi State University Moisture and density detector (MDD)
US7319037B1 (en) * 2002-05-14 2008-01-15 Orit Albeck-Marom Fluid tester and method of use
US7919324B2 (en) * 2002-05-14 2011-04-05 Orit Marom-Albeck Liquid tester
US6847219B1 (en) * 2002-11-08 2005-01-25 Cascade Microtech, Inc. Probe station with low noise characteristics
US6846446B2 (en) * 2002-11-14 2005-01-25 Dynea Chemical Oy NIR spectroscopic monitoring of resin-loading during assembly of engineered wood product
US6942826B2 (en) * 2002-11-14 2005-09-13 Dynea Chemicals Oy Spectroscopic monitoring of resin-application prior to assembly of composite wood veneer product
US6708555B1 (en) * 2002-11-18 2004-03-23 William F. Lyons, Jr. Dielectric wood moisture meter
US7250779B2 (en) * 2002-11-25 2007-07-31 Cascade Microtech, Inc. Probe station with low inductance path
NZ523295A (en) * 2002-12-20 2005-10-28 Jadewood Internat Ltd Forming compressed wood product from softwood by second heating compression step after coating and impregnating with fatty acid
US20040157961A1 (en) * 2003-01-30 2004-08-12 Gordon Tullos Curable coating powders and powder coatings formed therefrom
US7068051B2 (en) * 2003-02-19 2006-06-27 Technical Development Consultants, Inc. Permittivity monitor uses ultra wide band transmission
CA2516957A1 (en) * 2003-02-28 2004-09-10 Delta S Technologies Limited Improved efficiency dehumidifier drier with reversible airflow and improved control
US20050025797A1 (en) * 2003-04-08 2005-02-03 Xingwu Wang Medical device with low magnetic susceptibility
US20070010702A1 (en) * 2003-04-08 2007-01-11 Xingwu Wang Medical device with low magnetic susceptibility
US20050107870A1 (en) * 2003-04-08 2005-05-19 Xingwu Wang Medical device with multiple coating layers
US20050149169A1 (en) * 2003-04-08 2005-07-07 Xingwu Wang Implantable medical device
US20050165471A1 (en) * 2003-04-08 2005-07-28 Xingwu Wang Implantable medical device
US20040254419A1 (en) * 2003-04-08 2004-12-16 Xingwu Wang Therapeutic assembly
US20050079132A1 (en) * 2003-04-08 2005-04-14 Xingwu Wang Medical device with low magnetic susceptibility
US20050216075A1 (en) * 2003-04-08 2005-09-29 Xingwu Wang Materials and devices of enhanced electromagnetic transparency
US20050149002A1 (en) * 2003-04-08 2005-07-07 Xingwu Wang Markers for visualizing interventional medical devices
US6974035B2 (en) * 2003-04-18 2005-12-13 Forintek Canada Corp. Method and system for producing a moisture content map for use in moisture sorting green veneer using light transmission
US7221172B2 (en) * 2003-05-06 2007-05-22 Cascade Microtech, Inc. Switched suspended conductor and connection
US7492172B2 (en) * 2003-05-23 2009-02-17 Cascade Microtech, Inc. Chuck for holding a device under test
US7680304B2 (en) * 2003-05-27 2010-03-16 Weyerhaeuser Nr Company Method of wood strength and stiffness prediction
US7246452B1 (en) * 2003-06-20 2007-07-24 Jacques Roy Method for treating preservative-treated wood
JP2005048967A (en) * 2003-07-29 2005-02-24 Ube Ind Ltd Pulverulent fuel combustion device and pulverulent fuel combustion method
US20050080520A1 (en) * 2003-09-22 2005-04-14 Robert Kline Waste recovery and material handling process to replace the traditional trash transfer station and landfil by extracting reusable material and energy from joined refuse streams to include; office waste, dry waste, wet garbage and the special hazardous material handling of biological, chemical, and nuclear waste
US7585681B2 (en) * 2003-10-02 2009-09-08 Bayer Materialscience Llc Method for evaluating binder distribution on a surface
US20070015424A1 (en) * 2005-07-15 2007-01-18 Certainteed Corporation Building material having adaptive vapor retarder
US7241322B2 (en) * 2003-11-21 2007-07-10 Graham Robert G Pyrolyzing gasification system and method of use
US7043970B2 (en) * 2003-11-28 2006-05-16 Wagner Electronic Products, Inc. Method for monitoring wood-drying kiln state
US7265351B2 (en) * 2003-12-02 2007-09-04 Mpb Communications Inc. Method and apparatus for non-contact and rapid determination of liquid content
US7330034B1 (en) * 2003-12-31 2008-02-12 The United States Of America As Represented By The Secretary Of Agriculture Moisture measurement system for seed cotton or lint
US7078913B1 (en) * 2003-12-31 2006-07-18 The United States Of America As Represented By The Secretary Of Agriculture Multipath resistant microwave moisture sensor
US7017413B2 (en) * 2004-03-31 2006-03-28 Weyerhaeuser Company Methods for quantitatively determining lengthwise shrinkage in wood products
JP4474506B2 (en) * 2004-04-12 2010-06-09 財団法人北九州産業学術推進機構 Vacuum drying method and apparatus using microwaves
US7194822B2 (en) * 2004-05-11 2007-03-27 American Wood Dryers, Inc. Systems for drying moisture-containing work pieces and methods for drying same
US7646029B2 (en) * 2004-07-08 2010-01-12 Philips Solid-State Lighting Solutions, Inc. LED package methods and systems
CA2578020A1 (en) * 2004-08-31 2006-03-09 Kakuno Seisakusho Co., Ltd. Depressurization type drying machine and method for drying lumber using the same
US20070184552A1 (en) * 2004-11-01 2007-08-09 Dexsil Corporation Apparatus and method for the detection of water in plants
JP4387289B2 (en) * 2004-11-29 2009-12-16 株式会社ホーム建材店 Smoke drying equipment and wood smoke drying method
WO2006065725A1 (en) * 2004-12-13 2006-06-22 Cool Clean Technologies, Inc. Carbon dioxide snow apparatus
US20080090477A1 (en) * 2004-12-17 2008-04-17 Balthes Garry E Fire Retardant Panel Composition and Methods of Making the Same
US7906176B2 (en) * 2004-12-17 2011-03-15 Flexform Technologies, Llc Methods of manufacturing a fire retardant structural board
DE102005005339A1 (en) * 2005-01-27 2006-08-10 Hd Wood Technologies Ltd. Process for veneer production
US7656172B2 (en) * 2005-01-31 2010-02-02 Cascade Microtech, Inc. System for testing semiconductors
CA2495959A1 (en) * 2005-01-31 2006-07-31 Michael M. Sprague Heat recovery and ventilation system for dryers
US7535247B2 (en) * 2005-01-31 2009-05-19 Cascade Microtech, Inc. Interface for testing semiconductors
US7243050B2 (en) * 2005-03-05 2007-07-10 Armstrong Jay T Devices and systems for remote and automated monitoring and control of water removal, mold remediation, and similar work
US20060201022A1 (en) * 2005-03-11 2006-09-14 Wagner Electronic Products, Inc. In-kiln moisture measurement calibration system
EP1859287A4 (en) * 2005-03-18 2012-04-25 Troxler Electronic Lab Inc Apparatuses and systems for density gauge reference emulation
US7383730B2 (en) * 2005-03-31 2008-06-10 Weyerhaeuser Company Methods for determining velocity of a stress wave within a material and homogeneity of properties within the material
US7471764B2 (en) * 2005-04-15 2008-12-30 Rapiscan Security Products, Inc. X-ray imaging system having improved weather resistance
DE602006019231D1 (en) * 2005-05-12 2011-02-10 Pfizer Wasserfreie kristalline formen von n-ä1,2-ethoxyethyl)-5-(n-ethyl-n-methylaminoü-7-(4-methylpyridin-2-yl-aminoü-1h-pyrazoloä4,3-düpyrimidin-3-carbonylümethansulfonsäureamid
US7795390B2 (en) * 2005-06-24 2010-09-14 Teijin Pharma Limited Biological substance nesfatin and its related substances and uses thereof
AU2006263691B2 (en) * 2005-06-28 2011-11-24 Mitek Holdings, Inc. Automated system for precision cutting crooked lumber
EA011414B1 (en) * 2005-07-15 2009-02-27 А-Сорт Аб Means and method for classifying logs
WO2007027760A2 (en) * 2005-08-30 2007-03-08 Troxler Electronic Laboratories, Inc. Methods, systems, and computer program products for determining a property of construction material
FI119832B (en) * 2005-09-09 2009-03-31 Korwensuun Konetehdas Oy A method for determining stresses in a drying wood
US7606592B2 (en) * 2005-09-19 2009-10-20 Becker Charles D Waveguide-based wireless distribution system and method of operation
MY151520A (en) * 2005-09-30 2014-05-30 Australian Choice Timber Supplies Pty Ltd A method of and system for controlling a kiln
KR100581669B1 (en) * 2005-12-13 2006-05-22 장종한 Vacuum dry method and the device that do for the sake of charcoal forming
KR100581671B1 (en) * 2005-12-13 2006-05-22 장종한 Dry method and the device that do for the sake of charcoal forming
US7584652B2 (en) * 2005-12-21 2009-09-08 Weyerhaeuser Nr Company Methods of rapidly simulating in-service warp distortion of a wood product and/or rapidly estimating shrinkage properties using electromagnetic energy
US7286956B2 (en) * 2005-12-21 2007-10-23 Weyerhaeuser Company Methods of estimating the dimensional stability of a wood product from simple algebraic functions of moisture, shrinkage rates and grain angles
US7324904B2 (en) * 2005-12-21 2008-01-29 Weyerhauser Company Methods for determining dimensional stability of wood products utilizing single and multiple sensor groups
US20070157994A1 (en) * 2005-12-23 2007-07-12 Christopher Scoville Methods for making improved strand wood products and products made thereby
US20080000547A1 (en) * 2005-12-23 2008-01-03 Joel Barker Methods for making improved strand wood products and products made thereby
US20080000548A1 (en) * 2005-12-23 2008-01-03 Felpeng Liu Methods for making improved strand wood products and products made thereby
US8626178B2 (en) * 2006-01-31 2014-01-07 Niels Thybo Johansen Audio-visual system control using a mesh network
US20080165712A1 (en) * 2006-01-31 2008-07-10 Peter Shorty Home electrical device control within a wireless mesh network
US20080151824A1 (en) * 2006-01-31 2008-06-26 Peter Shorty Home electrical device control within a wireless mesh network
US9166812B2 (en) * 2006-01-31 2015-10-20 Sigma Designs, Inc. Home electrical device control within a wireless mesh network
US7652268B2 (en) * 2006-01-31 2010-01-26 Jp Laboratories, Inc General purpose, high accuracy dosimeter reader
US20080170511A1 (en) * 2006-01-31 2008-07-17 Peter Shorty Home electrical device control within a wireless mesh network
US20080154396A1 (en) * 2006-01-31 2008-06-26 Peter Shorty Home electrical device control within a wireless mesh network
US20080151825A1 (en) * 2006-01-31 2008-06-26 Peter Shorty Home electrical device control within a wireless mesh network
US8626251B2 (en) * 2006-01-31 2014-01-07 Niels Thybo Johansen Audio-visual system energy savings using a mesh network
US20080151795A1 (en) * 2006-01-31 2008-06-26 Peter Shorty Home electrical device control within a wireless mesh network
US20080159213A1 (en) * 2006-01-31 2008-07-03 Peter Shorty Home electrical device control within a wireless mesh network
US20070263918A1 (en) * 2006-02-13 2007-11-15 David Jenya Method and system of recognizing profiles and defects in wood processing
WO2007107000A1 (en) * 2006-03-22 2007-09-27 Adjuvants Plus Inc. The production and use of endophytes as novel inoculants for promoting enhanced plant vigor, health, growth, yield reducing environmental stress and for reducing dependency on chemical pesticides for pest control
US7938156B2 (en) * 2006-04-20 2011-05-10 Weyerhaeuser Nr Company Method for optimizing lumber
US7558622B2 (en) * 2006-05-24 2009-07-07 Bao Tran Mesh network stroke monitoring appliance
US7539533B2 (en) * 2006-05-16 2009-05-26 Bao Tran Mesh network monitoring appliance
US20070289589A1 (en) * 2006-06-15 2007-12-20 Mcfarland Daniel T Intelligent and adaptive control system and method for wood burning stove
WO2008010602A1 (en) * 2006-07-18 2008-01-24 Technical System Keep Limited Company Composite material for core, process for producing the same, plywood and process for producing the same
EP2054455B1 (en) * 2006-08-07 2013-12-25 Dynea Chemicals OY Stable aqueous novolac dispersion
CA2657798C (en) * 2006-09-20 2015-11-03 Lucidyne Technologies, Inc. Grain angle sensor
US7499171B2 (en) * 2006-09-29 2009-03-03 Weyerhaeuser Nr Company Methods for using light reflection patterns to determine diving angle of grain
US7715011B2 (en) * 2006-09-29 2010-05-11 Weyerhaeuser Nr Company Methods for using light reflection patterns to determine location of pith and curvature of the annual ring
US8157556B2 (en) * 2006-10-16 2012-04-17 Strandex Corporation Puller speed control device for monitoring the dimensions of an extruded synthetic wood composition
EP2415803A3 (en) * 2006-10-26 2012-10-31 Xyleco, Inc. Method of making a composite from biomass
US8157730B2 (en) * 2006-12-19 2012-04-17 Valencell, Inc. Physiological and environmental monitoring systems and methods
US8652040B2 (en) * 2006-12-19 2014-02-18 Valencell, Inc. Telemetric apparatus for health and environmental monitoring
CN103461303B (en) * 2006-12-21 2018-05-08 美国陶氏益农公司 Include the composite material of thermoplastic polymer, pest food material and insecticide
US7667462B2 (en) * 2006-12-22 2010-02-23 Schlumberger Technology Corporation Nuclear magnetic resonance module
US7676953B2 (en) * 2006-12-29 2010-03-16 Signature Control Systems, Inc. Calibration and metering methods for wood kiln moisture measurement
JP5073324B2 (en) * 2007-03-12 2012-11-14 富士ゼロックス株式会社 Recording sheet
WO2008112306A1 (en) * 2007-03-14 2008-09-18 Tucker Richard D Pyrolysis systems, methods, and resultants derived therefrom
US7630847B2 (en) * 2007-03-26 2009-12-08 Weyerhaeuser Nr Company Methods for predicting dimensional stability of a wood product based on differential characteristics
US8496034B2 (en) * 2007-03-27 2013-07-30 Weyerhaeuser Nr Company Methods for predicting warp at a given condition
US20080283151A1 (en) * 2007-05-15 2008-11-20 Weyerhaeuser Co. Warp Stable Wood Product And Methods For Detecting The Same
US20080295602A1 (en) * 2007-06-01 2008-12-04 Gavin Wallace Method and System for Sorting Green Lumber
US7748137B2 (en) * 2007-07-15 2010-07-06 Yin Wang Wood-drying solar greenhouse
US20090045258A1 (en) * 2007-08-12 2009-02-19 Anton Sabeta Method & system for enforcing a return policy
JP4378402B2 (en) * 2007-09-03 2009-12-09 宇部興産株式会社 Wood powder fuel combustion apparatus and wood powder fuel combustion method
US8448410B2 (en) * 2007-09-21 2013-05-28 Oryzatech, Inc. Building block, building block mold, and method for forming building block
US8062762B2 (en) * 2008-02-29 2011-11-22 East Coast Lumber Company Light-weight Paulowina based plywood
US10676751B2 (en) * 2008-02-29 2020-06-09 The Trustees Of The University Of Pennsylvania Production and use of plant degrading materials
US20090311237A1 (en) * 2008-04-14 2009-12-17 Frost Gregory I Combination therapy using a soluble hyaluronidase and a bisphosphonate
US7931784B2 (en) * 2008-04-30 2011-04-26 Xyleco, Inc. Processing biomass and petroleum containing materials
US8236535B2 (en) * 2008-04-30 2012-08-07 Xyleco, Inc. Processing biomass
EP3357419A1 (en) * 2009-02-25 2018-08-08 Valencell, Inc. Light-guiding devices and monitoring devices incorporating same

Also Published As

Publication number Publication date
US8104190B2 (en) 2012-01-31
US20080161972A1 (en) 2008-07-03
CA2673820C (en) 2011-12-13
US7676953B2 (en) 2010-03-16
US20100171513A1 (en) 2010-07-08
WO2008082681A1 (en) 2008-07-10

Similar Documents

Publication Publication Date Title
CA2673820A1 (en) Improved calibration and metering methods for wood kiln moisture measurement
US7126352B2 (en) Method and device for determining the moisture content and conductivity in the ground and in bulk materials
CN109814005A (en) A kind of cable insulation defect recognition and localization method and system
EP2588871B1 (en) Apparatus and method for measuring the dissipation factor of an insulator
WO2001084164A1 (en) Capacitor coupled voltage transformers
CN106534003B (en) Impedance matching methods, device and communication network
BRPI0621703B1 (en) METHOD FOR DETERMINING THE LINEAR ELECTRICAL RESPONSE OF A TRANSFORMER, GENERATOR OR ELECTRIC MOTOR
CN111693580B (en) Capacitive soil moisture monitoring system and method
CN108445051A (en) A kind of online device for testing moisture content of wood
CN110988038B (en) Soil moisture characteristic line measuring device and measuring method thereof
US7834641B1 (en) Phase-gain calibration of impedance/admittance meter
US20070197169A1 (en) Systems and methods for transmitter and channel characterization
AU2014204547A1 (en) Identifying defective electrical cables
US6803776B2 (en) Current-comparator-based four-terminal resistance bridge for power frequencies
US6483318B1 (en) Electric circuit providing selectable short circuit for instrumentation applications
US6573728B2 (en) Method and circuit for electrical testing of isolation resistance of large capacitance network
Merev et al. Implementation and Analysis of a Reference Partial Discharge Measurement System
Avellan et al. Frequency domain response of medium voltage XLPE cable terminations and its influence on cable diagnostics
Kusters et al. A direct current comparator bridge for high resistance measurements
US9035659B2 (en) Apparatus and method for measuring the dissipation factor of an insulator
CN113447537B (en) Method and device for measuring dielectric spectrum of oilpaper insulating frequency domain, storage medium and terminal
So et al. A computer-controlled current-comparator-based four-terminal resistance bridge for power frequencies
RU2240571C1 (en) Device for controlling technical condition of transformer windings
CN116298639B (en) Electromagnetic interference injection device, system and method
Carullo et al. Uncertainty issues in multi-channel data acquisition systems

Legal Events

Date Code Title Description
EEER Examination request