EP2352987A4 - GAS ANALYZER - Google Patents

GAS ANALYZER

Info

Publication number
EP2352987A4
EP2352987A4 EP08878042A EP08878042A EP2352987A4 EP 2352987 A4 EP2352987 A4 EP 2352987A4 EP 08878042 A EP08878042 A EP 08878042A EP 08878042 A EP08878042 A EP 08878042A EP 2352987 A4 EP2352987 A4 EP 2352987A4
Authority
EP
European Patent Office
Prior art keywords
gas analyzer
analyzer
gas
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.)
Withdrawn
Application number
EP08878042A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2352987A1 (en
Inventor
Michael D Furtaw
Robert D Eckles
Georgiy G Burba
Dayle K Mcdermitt
Jonathan M Welles
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.)
Li Cor Inc
Original Assignee
Li Cor Inc
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 Li Cor Inc filed Critical Li Cor Inc
Publication of EP2352987A1 publication Critical patent/EP2352987A1/en
Publication of EP2352987A4 publication Critical patent/EP2352987A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/05—Flow-through cuvettes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/317—Special constructive features
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G01N2021/3513—Open path with an instrumental source
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • G01N2021/396—Type of laser source
    • G01N2021/399—Diode laser
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • G01N21/276—Calibration, base line adjustment, drift correction with alternation of sample and standard in optical path
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/02—Mechanical
    • G01N2201/024—Modular construction
    • G01N2201/0245—Modular construction with insertable-removable part
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/121—Correction signals
    • G01N2201/1211—Correction signals for temperature

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Measuring Cells (AREA)
EP08878042A 2008-11-06 2008-11-06 GAS ANALYZER Withdrawn EP2352987A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2008/082671 WO2010053486A1 (en) 2008-11-06 2008-11-06 Gas analyzer

Publications (2)

Publication Number Publication Date
EP2352987A1 EP2352987A1 (en) 2011-08-10
EP2352987A4 true EP2352987A4 (en) 2012-03-28

Family

ID=42153123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08878042A Withdrawn EP2352987A4 (en) 2008-11-06 2008-11-06 GAS ANALYZER

Country Status (6)

Country Link
EP (1) EP2352987A4 (zh)
JP (1) JP2012507734A (zh)
CN (1) CN102272577A (zh)
AU (1) AU2008363810A1 (zh)
CA (1) CA2742728C (zh)
WO (1) WO2010053486A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102235960A (zh) * 2010-04-30 2011-11-09 钟雷 新型气体密度传感器
CN105445157A (zh) * 2015-12-17 2016-03-30 常熟市矿山机电器材有限公司 一种空气质量监测系统
JP2017166978A (ja) * 2016-03-16 2017-09-21 株式会社島津製作所 フローセル及びこれを備えたガス分析装置
CN109073535A (zh) * 2016-04-21 2018-12-21 株式会社堀场先进技术 测量池结构和光学分析装置
CN106124406B (zh) * 2016-08-23 2020-01-03 合肥金星机电科技发展有限公司 烟气的原位检测装置
DE112017005875B4 (de) * 2016-11-21 2021-07-22 Endress+Hauser Conducta Gmbh+Co. Kg System zur prozessintegrierten optischen Analyse fließfähiger Medien
CN107806900A (zh) * 2017-10-19 2018-03-16 太原双鼎科技有限公司 一种环境监测装置
CN111536950B (zh) * 2020-05-25 2022-05-24 杭州浅海科技有限责任公司 一种剖面海洋测量仪器的去温度影响的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060011844A1 (en) * 2004-07-16 2006-01-19 Otsuka Electronics Co., Ltd. Method of and apparatus for determining the amount of impurity in gas

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955386A (zh) * 1972-04-27 1974-05-29
US4008394A (en) * 1973-06-28 1977-02-15 Sensors, Inc. Gas analyzing
US4288062A (en) * 1979-08-09 1981-09-08 Holcroft Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace
US5340987A (en) * 1991-03-15 1994-08-23 Li-Cor, Inc. Apparatus and method for analyzing gas
JPH06249779A (ja) * 1993-02-26 1994-09-09 Shimadzu Corp ガス分析計
JPH08273939A (ja) * 1995-03-30 1996-10-18 Hitachi Ltd ガス絶縁変圧器
US6470732B1 (en) * 1998-01-05 2002-10-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Real-time exhaust gas modular flowmeter and emissions reporting system for mobile apparatus
JPH11304705A (ja) * 1998-04-23 1999-11-05 Nippon Soken Inc 赤外線吸収方式のガス濃度計測方法および装置
US6468222B1 (en) * 1999-08-02 2002-10-22 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
US6670613B2 (en) * 2000-04-28 2003-12-30 Bacharach, Inc. System and method for spectral analysis
EP1170583A1 (en) * 2000-06-06 2002-01-09 Stefano Tosi Non-dispersive infrared cell for gas analysis
US6836332B2 (en) * 2001-09-25 2004-12-28 Tennessee Scientific, Inc. Instrument and method for testing fluid characteristics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060011844A1 (en) * 2004-07-16 2006-01-19 Otsuka Electronics Co., Ltd. Method of and apparatus for determining the amount of impurity in gas
KR20060050193A (ko) * 2004-07-16 2006-05-19 오츠카 일렉트로닉스 가부시키가이샤 가스 중의 불순물 정량 방법 및 장치

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GOULDEN, M., L., ET AL: "An eddy covariance mesonet to measure the effect of forest age on land-atmosphere exchange", GLOBAL CHANGE BIOLOGY, vol. 12, 2006, pages 2146 - 2162 *
See also references of WO2010053486A1 *

Also Published As

Publication number Publication date
EP2352987A1 (en) 2011-08-10
CA2742728C (en) 2013-02-05
CN102272577A (zh) 2011-12-07
CA2742728A1 (en) 2010-05-14
WO2010053486A1 (en) 2010-05-14
JP2012507734A (ja) 2012-03-29
AU2008363810A1 (en) 2010-05-14

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