WO2001020312A3 - Microwave volatiles analyzer with high efficiency cavity - Google Patents

Microwave volatiles analyzer with high efficiency cavity Download PDF

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Publication number
WO2001020312A3
WO2001020312A3 PCT/US2000/025199 US0025199W WO0120312A3 WO 2001020312 A3 WO2001020312 A3 WO 2001020312A3 US 0025199 W US0025199 W US 0025199W WO 0120312 A3 WO0120312 A3 WO 0120312A3
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
high efficiency
analyzer
microwave
balance
Prior art date
Application number
PCT/US2000/025199
Other languages
French (fr)
Other versions
WO2001020312A2 (en
Inventor
William Edward Jennings
Matthew Donald Barrett
Edward Earl King
Original Assignee
Cem Ltd Llc
William Edward Jennings
Matthew Donald Barrett
Edward Earl King
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 Cem Ltd Llc, William Edward Jennings, Matthew Donald Barrett, Edward Earl King filed Critical Cem Ltd Llc
Priority to JP2001523847A priority Critical patent/JP4777566B2/en
Priority to AU75804/00A priority patent/AU7580400A/en
Priority to EP00965009.4A priority patent/EP1214582B9/en
Priority to CA002384882A priority patent/CA2384882C/en
Publication of WO2001020312A2 publication Critical patent/WO2001020312A2/en
Publication of WO2001020312A3 publication Critical patent/WO2001020312A3/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/04Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • G01N5/045Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/04Investigating moisture content
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/44Sample treatment involving radiation, e.g. heat
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40Concentrating samples
    • G01N1/4022Concentrating samples by thermal techniques; Phase changes
    • G01N2001/4027Concentrating samples by thermal techniques; Phase changes evaporation leaving a concentrated sample

Abstract

A volatiles analyzer is disclosed that includes a source of microwave radiation that can selectively produce at least one predetermined frequency of microwave radiation. A cavity is in communication with the source. The analyzer includes an analytical pan balance with at least its balance pan in the cavity. The walls of the cavity form a polyhedron that focuses microwave energy of the predetermined frequency on the balance pan while supporting a plurality of TM and TE modes in the cavity.
PCT/US2000/025199 1999-09-17 2000-09-16 Microwave volatiles analyzer with high efficiency cavity WO2001020312A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001523847A JP4777566B2 (en) 1999-09-17 2000-09-16 Microwave volatile analyzer with high efficiency cavity
AU75804/00A AU7580400A (en) 1999-09-17 2000-09-16 Microwave volatiles analyzer with high efficiency cavity
EP00965009.4A EP1214582B9 (en) 1999-09-17 2000-09-16 Microwave volatiles analyzer with high efficiency cavity
CA002384882A CA2384882C (en) 1999-09-17 2000-09-16 Microwave volatiles analyzer with high efficiency cavity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/398,129 1999-09-17
US09/398,129 US6320170B1 (en) 1999-09-17 1999-09-17 Microwave volatiles analyzer with high efficiency cavity

Publications (2)

Publication Number Publication Date
WO2001020312A2 WO2001020312A2 (en) 2001-03-22
WO2001020312A3 true WO2001020312A3 (en) 2001-11-22

Family

ID=23574099

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/025199 WO2001020312A2 (en) 1999-09-17 2000-09-16 Microwave volatiles analyzer with high efficiency cavity

Country Status (6)

Country Link
US (2) US6320170B1 (en)
EP (1) EP1214582B9 (en)
JP (1) JP4777566B2 (en)
AU (1) AU7580400A (en)
CA (1) CA2384882C (en)
WO (1) WO2001020312A2 (en)

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US6247246B1 (en) * 1998-05-27 2001-06-19 Denver Instrument Company Microwave moisture analyzer: apparatus and method
DE19952215C2 (en) * 1999-10-29 2001-10-31 Roche Diagnostics Gmbh Test element analysis system
US6495825B1 (en) * 1999-12-22 2002-12-17 International Business Machines Corporation Apparatus for photo exposure of materials with subsequent capturing of volatiles for analysis
US6548303B2 (en) * 2000-06-23 2003-04-15 Cem Corporation Method and apparatus for rapid fat content determination
US7282184B2 (en) * 2002-04-19 2007-10-16 Cem Corporation Microwave assisted chemical synthesis instrument with controlled pressure release
US7144739B2 (en) * 2002-11-26 2006-12-05 Cem Corporation Pressure measurement and relief for microwave-assisted chemical reactions
US6989519B2 (en) * 2003-09-02 2006-01-24 Cem Corporation Controlled flow instrument for microwave assisted chemistry with high viscosity liquids and heterogeneous mixtures
US7041947B2 (en) * 2003-09-02 2006-05-09 Cem Corporation Controlled flow instrument for microwave assisted chemistry with high viscosity liquids and heterogeneous mixtures
US7307248B2 (en) * 2003-12-09 2007-12-11 Cem Corporation Method and apparatus for microwave assisted high throughput high pressure chemical synthesis
US7405381B2 (en) * 2005-08-23 2008-07-29 Cem, Corporation Real-time imaging and spectroscopy during microwave assisted chemistry
PL1850111T3 (en) * 2006-04-25 2015-02-27 Mettler Toledo Ag Measuring device for gravimetric moisture determination
EP1850110A1 (en) * 2006-04-25 2007-10-31 Mettler-Toledo AG Measuring device for gravimetric moisture determination
EP1912046A1 (en) * 2006-10-11 2008-04-16 Mettler-Toledo AG Gravimetric moisture analyser
CN104181073B (en) * 2014-08-22 2016-08-03 中国农业科学院农产品加工研究所 A kind of dynamic analytical equipment of material volatile material
USD781162S1 (en) * 2015-09-08 2017-03-14 Mettler-Toledo Gmbh Moisture analyzer
US20170074766A1 (en) 2015-09-11 2017-03-16 Cem Corporation Moisture and volatiles analyzer
USD775977S1 (en) * 2015-09-22 2017-01-10 Ohaus Instruments (Changzhou) Co., Ltd Moisture analyzer
JP7263976B2 (en) * 2019-08-21 2023-04-25 株式会社島津製作所 Differential thermal/thermogravimetric simultaneous measurement device
JP1667994S (en) * 2019-11-25 2020-09-14

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WO1999040409A2 (en) * 1998-02-10 1999-08-12 Denver Instrument Company A microwave moisture analyzer: apparatus and method

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US3890825A (en) * 1972-07-03 1975-06-24 Hobart Corp Analysis of comminuted meat products
US4908486A (en) * 1986-06-05 1990-03-13 Nearctic Research Centre Resonant cavity of a microwave drier
US5632921A (en) * 1995-06-05 1997-05-27 The Rubbright Group, Inc. Cylindrical microwave heating applicator with only two modes
WO1999040409A2 (en) * 1998-02-10 1999-08-12 Denver Instrument Company A microwave moisture analyzer: apparatus and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
VARLAMOVA N A ET AL: "ON THE QUALITY FACTOR OF CAVITY RESONATORS OF DIFFERENT SHAPES", TELECOMMUNICATIONS AND RADIO ENGINEERING,US,BEGELL HOUSE, INC., NEW YORK, NY, vol. 52, no. 2, 1998, pages 79 - 85, XP000834425, ISSN: 0040-2508 *

Also Published As

Publication number Publication date
US6320170B1 (en) 2001-11-20
JP4777566B2 (en) 2011-09-21
WO2001020312A2 (en) 2001-03-22
AU7580400A (en) 2001-04-17
CA2384882C (en) 2006-11-28
CA2384882A1 (en) 2001-03-22
US6521876B2 (en) 2003-02-18
EP1214582A2 (en) 2002-06-19
US20010032845A1 (en) 2001-10-25
EP1214582B9 (en) 2015-02-18
EP1214582B1 (en) 2014-07-16
JP2003509690A (en) 2003-03-11

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