US3105150A - Coated radiant energy sight guide for temperature measurement - Google Patents
Coated radiant energy sight guide for temperature measurement Download PDFInfo
- Publication number
- US3105150A US3105150A US853812A US85381259A US3105150A US 3105150 A US3105150 A US 3105150A US 853812 A US853812 A US 853812A US 85381259 A US85381259 A US 85381259A US 3105150 A US3105150 A US 3105150A
- Authority
- US
- United States
- Prior art keywords
- guide
- radiant energy
- wall
- furnace
- temperature measurement
- 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.)
- Expired - Lifetime
Links
- 238000009529 body temperature measurement Methods 0.000 title description 4
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000011253 protective coating Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000004568 cement Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000006060 molten glass Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 229910052594 sapphire Inorganic materials 0.000 description 3
- 239000010980 sapphire Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0044—Furnaces, ovens, kilns
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/046—Materials; Selection of thermal materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/048—Protective parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0818—Waveguides
Definitions
- This application generally relates to a radiation transmission guide used in measuring for example the temperature of furnaces wherein energy is transmitted from a hot end of the guide located in a furnace, which is proportional to the temperature of the furnace, through the wall of the furnace to a cool end of the guide.
- FIGURE 1 shows a coated radiant energy transmission guide
- FIGURE 2 shows a cross section of the guide and coating taken along the section line 2-2 of FIGURE 1.
- FIGURE 1 of the drawing shows an apparatus that is useful in measuring the heat given off from an object such as a part of the interior of a furnace or an object being heated by this furnace.
- This apparatus is generally designated in the drawing as reference numeral and has a radiant energy transmission guide 12.
- the guide 12 is preferably of a rod shaped configuration and made of a transparent material such as sapphire or synthetic sapphire it should be understood that guides which are made of quartz, Pyrex or of acrlyn resin or methyl methacrylate plastics materials of the thermo-plastic type such as for example commercial Plexiglas or Lucite may also be used depending on the temperature range under which the temperature measurement is taking place.
- This guide is shown having a left heated end 14 which protrudes into and through the right side of a furnace wall 16.
- the arrangement of the guide is such that this end can readily be sighted on an exposed furnace wall or 'obiect mounted therein not shown.
- the right or cool end 18 of the guide 12 is shown located exterior and to the right of the right side of the furnace wall 16.
- FIGURE 1 also shows a spray nozzle 2! through which a refractory material in the form of, for example, aluminum oxidecement 22 can be sprayed on the outer peripheral surface of the guide 12 to form a protective coating 24 thereon.
- This coating is placed on the guide by either one or the other of the following two methods,
- the portion 26 of the guide 12 is cleaned by a suitable cleaning fluid on which the aluminum oxide is to be applied and a coating of hot aluminum oxide cement 22 is then uniformly applied to the outer peripheral surface of the guide 12. The coating is then allowed to dry out and to be hardened on the portion 26 of the rod 12.
- the portion 26 of the guide 12 is cleaned by means of a suitable cleaning fluid then temperate rather than hot aluminum oxide cement in paste form is applied to the exterior surface of the guide portion 26.
- the paste is then heated to substantially 2200 F. to dry out any moisture in the aluminum oxide cement and to cause the aluminum oxide to adhere to the guide.
- an aluminum oxide coating 24 can be applied which will effectively protect transmitting etficiency of the guide against ambient temperatures caused by the aforementioned undesired radiant energy which temperatures may be as high as 3000 F.
- the slag particles are brought about by impurities in the ore that is placed in a furnace, for example, the impurities calcium carbonate and silica.
- a radiant energy transmitting sight guide adapted to effect the efficient transmission of radiant energy proportional to the temperature of an object located within the confines of a wall of a heat emitting furnace from a hot end of the guide when positioned within the confines of the wall to an opposite end of the guide positioned outside the wall, comprising a protective coating of material entirely surrounding a peripheral portion of said guide that is spaced from said hot end and extends through an opening in the wall to the opposite end, and said material having refractory characteristics to prevent molten particles emitted in heating the object in the furance from being brought into contact with the peripheral portion of said guide.
- a radiant energy transmitting guide adapted to efiect the efiicient transmission of radiant energy proportional to the internal temperature of a carbon fuel burning furnace from a hot end of the guide when positioned within an inner wall of the furnace to an opposite end of said guide positioned outside the wall, comprising a protective coating of material entirely surrounding a peripheral portion of said guide spaced from said hot end and extends through an opening in the wall to the opposite end and said material having refractory characteristics to prevent 41- molten carbon particles emitted by the fuel being burned in the furnace being brought into contact with the peripheral portion of said guide.
Description
R 3 Q5 50 X s l :71 v J g Sept. 24, E963 J. A. DUKE COATED RADIANT ENERGY SIGHT GUIDE FOR TEMPERA'I'URE L1 Filed Nov. 18, 1959' iun'uw MHE RENEE:
JOHN A. DUKE INVENT OR.
ATTORNEY.
Fatented Sept. 24,
3,105,150 COATED RADIANT ENERGY SIGHT GUIDE FOR TEMPERATURE MEASUREMENT John A. Duke, Waldwick, Ni, assignor to eapolis- Honeywell Regulator Company, Minneapolis, Minn., a corporation of Delaware Filed Nov. 13, 1959, Ser. No. 853,812 Claims. (Cl. 250-433) This application generally relates to a radiation transmission guide used in measuring for example the temperature of furnaces wherein energy is transmitted from a hot end of the guide located in a furnace, which is proportional to the temperature of the furnace, through the wall of the furnace to a cool end of the guide.
When guides of this type are employed to measure the temperature of furnaces in the aforementioned manner it has been found that inaccurate temperature measurements ofttimes result particularly between room temperature and 3000 F. Experimentation has shown that these inaccuracies are caused when small particles such as dirt, carbon, molten glass, slag or other similar particles are deposited on the peripheral and/or end portions of the rod particularly the cool peripheral end portion of the guide. When this happens a loss in transmission etficiency of the guide occurs.
It is one of the primary objects of the present invention to provide a coating for such a radiation transmission guide wich will greatly reduce the loss in the transmission efliciency of the radiant energy transmitting guide.
It is another more specific object of the invention to provide a coating of the aforementioned type for a radiant transmission guide which is made of aluminum oxide cement and which when applied to an outer peripheral surface of the guide will effectively protect the radiant energy transmitting characteristics of the guide over wide ambient temperature ranges particularly between room temperature and 3000 F.
In the drawing:
FIGURE 1 shows a coated radiant energy transmission guide, and
FIGURE 2 shows a cross section of the guide and coating taken along the section line 2-2 of FIGURE 1.
FIGURE 1 of the drawing shows an apparatus that is useful in measuring the heat given off from an object such as a part of the interior of a furnace or an object being heated by this furnace.
This apparatus is generally designated in the drawing as reference numeral and has a radiant energy transmission guide 12. Although the guide 12 is preferably of a rod shaped configuration and made of a transparent material such as sapphire or synthetic sapphire it should be understood that guides which are made of quartz, Pyrex or of acrlyn resin or methyl methacrylate plastics materials of the thermo-plastic type such as for example commercial Plexiglas or Lucite may also be used depending on the temperature range under which the temperature measurement is taking place.
This guide is shown having a left heated end 14 which protrudes into and through the right side of a furnace wall 16. The arrangement of the guide is such that this end can readily be sighted on an exposed furnace wall or 'obiect mounted therein not shown. The right or cool end 18 of the guide 12 is shown located exterior and to the right of the right side of the furnace wall 16.
FIGURE 1 also shows a spray nozzle 2! through which a refractory material in the form of, for example, aluminum oxidecement 22 can be sprayed on the outer peripheral surface of the guide 12 to form a protective coating 24 thereon. This coating is placed on the guide by either one or the other of the following two methods,
the first of which is the preferred form as shown in the drawing.
In the first or preferred method the portion 26 of the guide 12 is cleaned by a suitable cleaning fluid on which the aluminum oxide is to be applied and a coating of hot aluminum oxide cement 22 is then uniformly applied to the outer peripheral surface of the guide 12. The coating is then allowed to dry out and to be hardened on the portion 26 of the rod 12.
In the second or alternative method the portion 26 of the guide 12 is cleaned by means of a suitable cleaning fluid then temperate rather than hot aluminum oxide cement in paste form is applied to the exterior surface of the guide portion 26. The paste is then heated to substantially 2200 F. to dry out any moisture in the aluminum oxide cement and to cause the aluminum oxide to adhere to the guide.
When an aluminum oxide coating 24 is placed on the guide by either of the aforementioned techniques, laboratory experirnentations have shown that should any radiant energy then seep through the aperture 2% in the furnace wall which surrounds the guide I12 this undesired energy will not be permitted to enter the coated portion 24 surrounding the guide portion 26 to cause the efficient transmission characteristics of the guide 12 to be upset.
Experimentation has further shown that an aluminum oxide coating 24 can be applied which will effectively protect transmitting etficiency of the guide against ambient temperatures caused by the aforementioned undesired radiant energy which temperatures may be as high as 3000 F.
Experimentation has also shown that another advantage of the aluminum oxide coating 24 is its ability to prevent small atmospheric particles of carbon for example in the form of smoke or lamp black, molten glass or slag from being brought into contact with the surface 26 of the guide 12. Powdered carbon and molten glass are ofttimes produced by furnaces for example when an improper combustion of the fuel oil or gas being used by the furnace occurs due to insufficient amount of air being fed to the furnace.
The slag particles are brought about by impurities in the ore that is placed in a furnace, for example, the impurities calcium carbonate and silica.
By preventing the aforementioned particles for example carbon from coming into contact with a hot guide portion 26 it is possible with the coated transmission guide disclosed herein to prevent transmission inefiiciencies from occurring in the radiation energy transmitting guide.
From the aforementioned description of the heat measuring apparatus it can be seen that a coating of refractory material such as aluminum oxide has been employed about a radiant energy guide to prevent transmission inefficiencies from occurring in the radiant energy guide particularly under the conditions when theambient temperature surrounding the guide is raised to an abnormally high level and/ or deposits of carbon, slag or glass particles are present in the atmosphere immediately surrounding the guide. I
What is claimed is:
l. A radiant energy transmitting sight guide adapted to effect the efficient transmission of radiant energy proportional to the temperature of an object located within the confines of a wall of a heat emitting furnace from a hot end of the guide when positioned within the confines of the wall to an opposite end of the guide positioned outside the wall, comprising a protective coating of material entirely surrounding a peripheral portion of said guide that is spaced from said hot end and extends through an opening in the wall to the opposite end, and said material having refractory characteristics to prevent molten particles emitted in heating the object in the furance from being brought into contact with the peripheral portion of said guide.
2. The transmitting sight guide as specified in claim 1 wherein said refractory material is comprised of a dried coating of aluminum oxide cement.
3. The transmitting sight guide as specified in claim 1 wherein said coating is etfective in protecting the radiant energy transmission eificiency of said rod in atmospheres up to 3000 F.
4. The transmitting sight guide as specified in claim 1 wherein said guide is made of a synethetic sapphire material.
5. A radiant energy transmitting guide adapted to efiect the efiicient transmission of radiant energy proportional to the internal temperature of a carbon fuel burning furnace from a hot end of the guide when positioned within an inner wall of the furnace to an opposite end of said guide positioned outside the wall, comprising a protective coating of material entirely surrounding a peripheral portion of said guide spaced from said hot end and extends through an opening in the wall to the opposite end and said material having refractory characteristics to prevent 41- molten carbon particles emitted by the fuel being burned in the furnace being brought into contact with the peripheral portion of said guide.
References Cited in the file of this patent UNITED STATES PATENTS 1,318,516 Wallis et a1. Oct. 14, 1919 1,894,109 Marcellus Jan. 10, 1933 2,113,450 Lasky et a1 Apr. 5, 1938 2,384,542 Fruth et a1 Sept. 11, 1945 2,567,036 Shannon Sept. 4, 1951 2,709,367 Bohnet May 31, 1955 2,714,563 Poorrnan et a1. a- Aug. 2, 1955 2,720,593 Richards et al. Oct. 11, 1955 2,799,780 Ruderman July 16, 1957 2,861,900 Smith et a1. Nov. 25, 1958 2,897,368 Lundberg et al July 28, 1959 2,904,450 Irland et a1 Sept. 15, 1959 2,929,922 Schallow et a1 Mar. 22, 1960 2,977,842 Duke Apr. 4, 1961 3,064,128 Duke Nov. 13, 1962 g I a
Claims (1)
1. A RADIANT ENERGY TRANSMITTING SIGHT GUIDE ADAPTED TO EFFECT THE EFFICIENT TRANSMISSION OF RADIANT ENERGY PROPORTIONAL TO THE TEMPERATURE OF AN OBJECT LOCATED WITHIN THE CONFINES OF A WALL OF A HEAT EMITTING FURNACE FROM A HOT END OF THE GUIDE WHEN POSITIONED WITHIN THE CONFINES OF THE WALL TO AN OPPOSITE END OF THE GUIDE POSITIONED OUTSIDE THE WALL, COMPRISING A PROTECTIVE COATING OF MATERIAL ENTIRELY SURROUNDING A PERIPHERAL PORTION OF SAID GUIDE THAT IS SPACED FROM SAID HOT END AND EXTENDS THROUGH AN OPENING IN THE WALL TO THE OPPOSITE END, AND SAID MATERIAL HAVING REFRACTORY CHARACTERISTICS TO PREVENT MOLTEN PARTICLES EMITTED IN HEATING THE OBJECT IN THE FURNACE FROM BEING BROUGHT INTO CONTACT WITH THE PERIPHERAL PORTION OF SAID GUIDE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US853812A US3105150A (en) | 1959-11-18 | 1959-11-18 | Coated radiant energy sight guide for temperature measurement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US853812A US3105150A (en) | 1959-11-18 | 1959-11-18 | Coated radiant energy sight guide for temperature measurement |
Publications (1)
Publication Number | Publication Date |
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US3105150A true US3105150A (en) | 1963-09-24 |
Family
ID=25316974
Family Applications (1)
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US853812A Expired - Lifetime US3105150A (en) | 1959-11-18 | 1959-11-18 | Coated radiant energy sight guide for temperature measurement |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4547145A (en) * | 1983-03-09 | 1985-10-15 | Texaco Development Corporation | Combination with a high temperature combustion chamber and top burner |
US4576486A (en) * | 1983-08-23 | 1986-03-18 | The United States Of America As Represented By The Secretary Of Commerce | Optical fiber thermometer |
EP0230692A1 (en) * | 1985-12-23 | 1987-08-05 | Compagnie Philips Eclairage | Device for ascertaining the composition of combustion gases in internal combustion engine |
US4750139A (en) * | 1985-01-24 | 1988-06-07 | Accufiber, Inc. | Blackbody radiation sensing optical fiber thermometer system |
US4759603A (en) * | 1986-04-08 | 1988-07-26 | Hewlett-Packard Company | Array of limited internally reflective light guides |
US4770544A (en) * | 1985-11-15 | 1988-09-13 | General Electric Company | Temperature sensor |
US4845647A (en) * | 1985-01-24 | 1989-07-04 | Accufiber, Inc. | Method and apparatus for determining temperature in a blackbody radiation sensing system |
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---|---|---|---|---|
US1318516A (en) * | 1919-10-14 | Radiation-pyrometer | ||
US1894109A (en) * | 1930-11-19 | 1933-01-10 | Gen Electric | Temperature measurement |
US2113450A (en) * | 1934-01-22 | 1938-04-05 | Polymet Mfg Corp | Pyroscope |
US2384542A (en) * | 1942-07-08 | 1945-09-11 | Western Electric Co | Inorganic insulation for electrical conductors |
US2567036A (en) * | 1948-08-26 | 1951-09-04 | Bailey Meter Co | Fluid-tight light transmitting apparatus |
US2709367A (en) * | 1954-02-08 | 1955-05-31 | Union Carbide & Carbon Corp | Apparatus for transmitting radiant heat for temperature measurement |
US2714563A (en) * | 1952-03-07 | 1955-08-02 | Union Carbide & Carbon Corp | Method and apparatus utilizing detonation waves for spraying and other purposes |
US2720593A (en) * | 1950-12-05 | 1955-10-11 | Paul I Richards | Scintillation-type ion detector |
US2799780A (en) * | 1953-09-03 | 1957-07-16 | Isomet Corp | Neutron scintillation counter |
US2861900A (en) * | 1955-05-02 | 1958-11-25 | Union Carbide Corp | Jet plating of high melting point materials |
US2897368A (en) * | 1954-03-18 | 1959-07-28 | Hans T F Lundberg | Aerial geophysical exploration with scintillation spectrometer |
US2904450A (en) * | 1958-05-14 | 1959-09-15 | Ford Motor Co | Transparent coating |
US2929922A (en) * | 1958-07-30 | 1960-03-22 | Bell Telephone Labor Inc | Masers and maser communications system |
US2977842A (en) * | 1958-08-06 | 1961-04-04 | Honeywell Regulator Co | Measuring method and apparatus |
US3064128A (en) * | 1958-10-17 | 1962-11-13 | Honeywell Regulator Co | Measuring apparatus |
-
1959
- 1959-11-18 US US853812A patent/US3105150A/en not_active Expired - Lifetime
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1318516A (en) * | 1919-10-14 | Radiation-pyrometer | ||
US1894109A (en) * | 1930-11-19 | 1933-01-10 | Gen Electric | Temperature measurement |
US2113450A (en) * | 1934-01-22 | 1938-04-05 | Polymet Mfg Corp | Pyroscope |
US2384542A (en) * | 1942-07-08 | 1945-09-11 | Western Electric Co | Inorganic insulation for electrical conductors |
US2567036A (en) * | 1948-08-26 | 1951-09-04 | Bailey Meter Co | Fluid-tight light transmitting apparatus |
US2720593A (en) * | 1950-12-05 | 1955-10-11 | Paul I Richards | Scintillation-type ion detector |
US2714563A (en) * | 1952-03-07 | 1955-08-02 | Union Carbide & Carbon Corp | Method and apparatus utilizing detonation waves for spraying and other purposes |
US2799780A (en) * | 1953-09-03 | 1957-07-16 | Isomet Corp | Neutron scintillation counter |
US2709367A (en) * | 1954-02-08 | 1955-05-31 | Union Carbide & Carbon Corp | Apparatus for transmitting radiant heat for temperature measurement |
US2897368A (en) * | 1954-03-18 | 1959-07-28 | Hans T F Lundberg | Aerial geophysical exploration with scintillation spectrometer |
US2861900A (en) * | 1955-05-02 | 1958-11-25 | Union Carbide Corp | Jet plating of high melting point materials |
US2904450A (en) * | 1958-05-14 | 1959-09-15 | Ford Motor Co | Transparent coating |
US2929922A (en) * | 1958-07-30 | 1960-03-22 | Bell Telephone Labor Inc | Masers and maser communications system |
US2977842A (en) * | 1958-08-06 | 1961-04-04 | Honeywell Regulator Co | Measuring method and apparatus |
US3064128A (en) * | 1958-10-17 | 1962-11-13 | Honeywell Regulator Co | Measuring apparatus |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4547145A (en) * | 1983-03-09 | 1985-10-15 | Texaco Development Corporation | Combination with a high temperature combustion chamber and top burner |
US4576486A (en) * | 1983-08-23 | 1986-03-18 | The United States Of America As Represented By The Secretary Of Commerce | Optical fiber thermometer |
US4750139A (en) * | 1985-01-24 | 1988-06-07 | Accufiber, Inc. | Blackbody radiation sensing optical fiber thermometer system |
US4845647A (en) * | 1985-01-24 | 1989-07-04 | Accufiber, Inc. | Method and apparatus for determining temperature in a blackbody radiation sensing system |
US4770544A (en) * | 1985-11-15 | 1988-09-13 | General Electric Company | Temperature sensor |
EP0230692A1 (en) * | 1985-12-23 | 1987-08-05 | Compagnie Philips Eclairage | Device for ascertaining the composition of combustion gases in internal combustion engine |
US4759603A (en) * | 1986-04-08 | 1988-07-26 | Hewlett-Packard Company | Array of limited internally reflective light guides |
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