DK306690A - Fremgangsmaade ved og apparat til spektroskopisk maaling af koncentrationen af en gas - Google Patents

Fremgangsmaade ved og apparat til spektroskopisk maaling af koncentrationen af en gas Download PDF

Info

Publication number
DK306690A
DK306690A DK306690A DK306690A DK306690A DK 306690 A DK306690 A DK 306690A DK 306690 A DK306690 A DK 306690A DK 306690 A DK306690 A DK 306690A DK 306690 A DK306690 A DK 306690A
Authority
DK
Denmark
Prior art keywords
gas
measurement
concentration
pct
sample
Prior art date
Application number
DK306690A
Other languages
Danish (da)
English (en)
Other versions
DK306690D0 (da
Inventor
Robert Tell
Torbjoern Andersson
Stefan Lundqvist
Henrik Ahlberg
Original Assignee
Altoptronic Ab
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 Altoptronic Ab filed Critical Altoptronic Ab
Publication of DK306690D0 publication Critical patent/DK306690D0/da
Publication of DK306690A publication Critical patent/DK306690A/da

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03Cuvette constructions
    • G01N21/031Multipass arrangements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/42Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4242Modulated light, e.g. for synchronizing source and detector circuit
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N2021/1748Comparative step being essential in the method
    • G01N2021/1751Constructive features therefore, e.g. using two measurement cells
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504Investigating 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/08Optical fibres; light guides
    • G01N2201/0826Fibre array at source, distributing

Landscapes

  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)
DK306690A 1988-07-07 1990-12-28 Fremgangsmaade ved og apparat til spektroskopisk maaling af koncentrationen af en gas DK306690A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8802536A SE8802536D0 (sv) 1988-07-07 1988-07-07 Metod och apparat for spektroskopisk metning av koncentrationen av en gas i ett prov
PCT/SE1989/000404 WO1990000732A1 (en) 1988-07-07 1989-07-07 Method and apparatus for spectroscopic measurement of the concentration of a gaz

Publications (2)

Publication Number Publication Date
DK306690D0 DK306690D0 (da) 1990-12-28
DK306690A true DK306690A (da) 1991-02-21

Family

ID=20372841

Family Applications (1)

Application Number Title Priority Date Filing Date
DK306690A DK306690A (da) 1988-07-07 1990-12-28 Fremgangsmaade ved og apparat til spektroskopisk maaling af koncentrationen af en gas

Country Status (10)

Country Link
US (1) US5173749A (de)
EP (1) EP0423223B1 (de)
JP (1) JP3108420B2 (de)
AT (1) ATE127584T1 (de)
DE (1) DE68924163T2 (de)
DK (1) DK306690A (de)
FI (1) FI910043A0 (de)
NO (1) NO304620B1 (de)
SE (1) SE8802536D0 (de)
WO (1) WO1990000732A1 (de)

Families Citing this family (122)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3059262B2 (ja) * 1991-10-08 2000-07-04 日本酸素株式会社 ガス中の微量水分分析装置
JPH0534562U (ja) * 1991-10-16 1993-05-07 日本電子機器株式会社 光学式アルコールセンサ
US5317156A (en) * 1992-01-29 1994-05-31 Sri International Diagnostic tests using near-infrared laser absorption spectroscopy
JP2744742B2 (ja) * 1992-11-05 1998-04-28 東京電力株式会社 ガス濃度測定方法およびその測定装置
DE4300853C2 (de) * 1993-01-15 2003-09-04 Daimler Chrysler Ag Verfahren zur spektroskopischen Bestimmung des Stickstoffoxidgehalts
US5347357A (en) * 1993-01-28 1994-09-13 Hughes Aircraft Company High-voltage crystal ramp generator and integrator for FM laser radar
US5500768A (en) * 1993-04-16 1996-03-19 Bruce McCaul Laser diode/lens assembly
US5615052A (en) * 1993-04-16 1997-03-25 Bruce W. McCaul Laser diode/lens assembly
US5625189A (en) * 1993-04-16 1997-04-29 Bruce W. McCaul Gas spectroscopy
US5448071A (en) * 1993-04-16 1995-09-05 Bruce W. McCaul Gas spectroscopy
JPH09503854A (ja) * 1993-07-26 1997-04-15 バイオテクトロニックス インコーポレイテッド 比色滴定方法および装置
US5533509A (en) * 1993-08-12 1996-07-09 Kurashiki Boseki Kabushiki Kaisha Method and apparatus for non-invasive measurement of blood sugar level
US5550636A (en) * 1993-09-03 1996-08-27 The United States Of America As Represented By The United States Department Of Energy Self-tuning method for monitoring the density of a gas vapor component using a tunable laser
US5381010A (en) * 1993-12-03 1995-01-10 Sleepair Corporation Periodically alternating path and alternating wavelength bridges for quantitative and ultrasensitive measurement of vapor concentration
DE4342246C2 (de) * 1993-12-10 1997-03-20 Karl Stefan Riener Charakteristische Absorption
US5445964A (en) * 1994-05-11 1995-08-29 Lee; Peter S. Dynamic engine oil and fuel consumption measurements using tunable diode laser spectroscopy
US5485276A (en) * 1994-09-22 1996-01-16 Spectral Sciences Inc. Multi-pass optical cell species concentration measurement system
US5572031A (en) * 1994-11-23 1996-11-05 Sri International Pressure- and temperature-compensating oxygen sensor
US5543621A (en) * 1995-05-15 1996-08-06 San Jose State University Foundation Laser diode spectrometer for analyzing the ratio of isotopic species in a substance
US5900533A (en) * 1995-08-03 1999-05-04 Trw Inc. System and method for isotope ratio analysis and gas detection by photoacoustics
US5963336A (en) 1995-10-10 1999-10-05 American Air Liquide Inc. Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use
US5742399A (en) * 1996-04-18 1998-04-21 American Air Liquide, Inc. Method for stabilizing the wavelength in a laser spectrometer system
US5818578A (en) * 1995-10-10 1998-10-06 American Air Liquide Inc. Polygonal planar multipass cell, system and apparatus including same, and method of use
WO1997015817A1 (en) * 1995-10-20 1997-05-01 Orbisphere Laboratories Neuchatel S.A. Multipass cell and analysis method
US5880850A (en) * 1996-04-18 1999-03-09 American Air Liquide Inc Method and system for sensitive detection of molecular species in a vacuum by harmonic detection spectroscopy
US5949537A (en) 1996-04-18 1999-09-07 American Air Liquide Inc. In-line cell for absorption spectroscopy
JP3274605B2 (ja) * 1996-05-01 2002-04-15 日本無線株式会社 炭素同位体分析装置
US5903006A (en) * 1996-05-31 1999-05-11 Norihiro Kiuchi Liquid concentration detecting apparatus
US5770156A (en) * 1996-06-04 1998-06-23 In Usa, Inc. Gas detection and measurement system
US5729787A (en) * 1996-07-23 1998-03-17 Eastman Kodak Company Toner concentration monitor and method
WO1998017991A1 (en) * 1996-10-18 1998-04-30 In Usa, Inc. Multi-wavelength based ozone measurement method and apparatus
AU5547798A (en) * 1996-11-15 1998-06-10 Optosens Optische Spektroskopie Und Sensortechnik Gmbh Method and device for combined absorption and reflectance spectroscopy
DE19717145C2 (de) * 1997-04-23 1999-06-02 Siemens Ag Verfahren zur selektiven Detektion von Gasen und Gassensor zu dessen Durchführung
US6064488A (en) * 1997-06-06 2000-05-16 Monitor Labs, Inc. Method and apparatus for in situ gas concentration measurement
US6044329A (en) * 1997-06-19 2000-03-28 Kware Software Systems Inc. Laser gas analyzer and a method of operating the laser to reduce non-linearity errors
US5912740A (en) * 1997-06-20 1999-06-15 The Board Of Trustees Of The Leland Stanford Junior University Ring resonant cavities for spectroscopy
US5835230A (en) * 1997-07-10 1998-11-10 American Air Liquide Inc. Method for calibration of a spectroscopic sensor
US6084668A (en) * 1997-07-10 2000-07-04 American Air Liquide Inc. In-line cell for absorption spectroscopy
US5984998A (en) * 1997-11-14 1999-11-16 American Iron And Steel Institute Method and apparatus for off-gas composition sensing
JPH11211658A (ja) * 1998-01-28 1999-08-06 Nippon Sanso Kk ガス中の不純物の分光分析方法
US5930000A (en) * 1998-02-11 1999-07-27 Monitor Labs, Inc. Line-locked diode laser for gas spectroscopy
US6121627A (en) * 1998-08-31 2000-09-19 Tulip; John Gas detector with reference cell
DE19840345B4 (de) * 1998-09-04 2004-09-30 Dräger Medical AG & Co. KGaA Verfahren und Vorrichtung zum quantitativen Aufspüren eines vorgegebenen Gases
JP3343680B2 (ja) * 1999-07-12 2002-11-11 日本酸素株式会社 レーザー分光分析装置
TW480456B (en) * 2000-02-02 2002-03-21 Umax Data Systems Inc Circular optical reflection device
US6442736B1 (en) 2000-10-03 2002-08-27 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'expolitation Des Procedes Georges Claude Semiconductor processing system and method for controlling moisture level therein
EP1217369A1 (de) * 2000-12-22 2002-06-26 Instrumentarium Corporation Sensor für ein paramagnetisches Gas wie z.B. Sauerstoff in einem Gemisch
SE0101004D0 (sv) * 2001-03-21 2001-03-21 Astrazeneca Ab New measuring technique
GB0120027D0 (en) 2001-08-16 2001-10-10 Isis Innovation Spectroscopic breath analysis
DE10147065B4 (de) * 2001-09-25 2008-04-17 Siemens Ag Verfahren zur Detektion von Absorptionslinien in der Absorptionsspektroskopie
KR100433684B1 (ko) * 2001-11-21 2004-06-02 한국수력원자력 주식회사 레이저 동위원소 분리과정에서 생성물의 질량성분신호를이용한 파장가변 레이저 파장의 실시간 궤환제어 방법
US7022992B2 (en) * 2002-01-17 2006-04-04 American Air Liquide, Inc. Method and apparatus for real-time monitoring of furnace flue gases
US20030160173A1 (en) * 2002-02-22 2003-08-28 Oleg Ershov Remote gas molecule detector
US6775001B2 (en) * 2002-02-28 2004-08-10 Lambda Control, Inc. Laser-based spectrometer for use with pulsed and unstable wavelength laser sources
US6750467B2 (en) * 2002-05-14 2004-06-15 John Tulip Vehicle mounted gas detector
DE10222822A1 (de) * 2002-05-21 2003-12-04 Conducta Endress & Hauser Online-Analysator
US7225096B2 (en) * 2002-09-25 2007-05-29 Thermo Finnigan Llc Method of controlling and correcting an asymmetric waveform
US20040124376A1 (en) * 2002-12-27 2004-07-01 Canberra Auila Inc. Real time explosive detection system
US7436514B2 (en) * 2003-04-01 2008-10-14 Siemens Aktiengesellschaft Process absorption spectrometer
DE602004000374T2 (de) * 2003-09-12 2006-09-28 Ir Microsystems S.A. Gasdetektionsverfahren und gasdetektoreinrichtung
US20050062972A1 (en) * 2003-09-22 2005-03-24 Krusen Calvin R. System and method for cavity ring-down spectroscopy using continuously varying continuous wave excitation
US6872947B1 (en) * 2003-09-22 2005-03-29 Lucent Technologies Inc. MEMS-based spectrophotometric system
US20060044562A1 (en) * 2004-08-25 2006-03-02 Norsk Elektro Optikk As Gas monitor
KR20080013949A (ko) * 2005-04-28 2008-02-13 도요다 지도샤 가부시끼가이샤 배기가스 분석장치
WO2006124422A2 (en) * 2005-05-16 2006-11-23 Dow Global Technologies Inc. Excess air control for cracker furnace burners
JP4605508B2 (ja) * 2005-12-28 2011-01-05 セイコーエプソン株式会社 原子周波数取得装置および原子時計
GB0606661D0 (en) 2006-04-03 2006-05-10 Brightwake Ltd Improvements relating to dressings
JP4594277B2 (ja) * 2006-05-31 2010-12-08 トヨタ自動車株式会社 排ガス分析装置におけるセンサユニット
JP4732277B2 (ja) * 2006-08-23 2011-07-27 トヨタ自動車株式会社 ガス分析装置及びガス分析方法
US7851760B2 (en) * 2006-09-01 2010-12-14 Dow Global Technology Inc. Control and optimization of process for making ethylene oxide
WO2008067282A2 (en) * 2006-11-27 2008-06-05 Nano-Proprietary, Inc. Sono-photonic gas sensor
JP2008175611A (ja) * 2007-01-17 2008-07-31 Fuji Electric Systems Co Ltd ガス濃度測定装置およびガス濃度測定方法
EP1969997A1 (de) * 2007-03-12 2008-09-17 Radiometer Basel AG Sensorensystem
DE102007014518B3 (de) * 2007-03-27 2008-11-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Photoakustische Multipass-Zelle mit konzentrierenden Reflexionsmitteln
US20080266549A1 (en) * 2007-04-26 2008-10-30 Ese Inc. Chemical Constituent Analyzer
EP2000792B1 (de) * 2007-06-06 2011-08-03 Siemens Aktiengesellschaft Verfahren zur Messung der Konzentration einer Gaskomponente in einem Messgas
EP2072979B1 (de) * 2007-12-21 2012-02-29 Siemens Aktiengesellschaft Verfahren zur Messung der Konzentration einer Gaskomponente in einem Messgas
JP2009156815A (ja) * 2007-12-27 2009-07-16 Mitsubishi Heavy Ind Ltd ガス濃度計測装置及びガス濃度計測方法
GB2457449B (en) * 2008-02-12 2011-06-15 Starna Scient Ltd Reference cell
JP5360053B2 (ja) * 2008-04-15 2013-12-04 株式会社島津製作所 校正用ガスセルを搭載したガス分析装置
US8390813B2 (en) * 2008-05-02 2013-03-05 Los Alamos National Security, Llc Apparatus and method for monitoring of gas having stable isotopes
JP5137740B2 (ja) * 2008-08-08 2013-02-06 日立造船株式会社 袋状容器内における酸素濃度の非破壊検査装置
US7943915B2 (en) * 2008-10-10 2011-05-17 Ge Infrastructure Sensing, Inc. Method of calibrating a wavelength-modulation spectroscopy apparatus
US7957001B2 (en) * 2008-10-10 2011-06-07 Ge Infrastructure Sensing, Inc. Wavelength-modulation spectroscopy method and apparatus
CN102282465B (zh) * 2008-11-14 2014-04-16 罗伯特·博世有限公司 用于检测二醇的设备和方法
DE102008064173B4 (de) 2008-12-22 2011-06-01 Universität Rostock Verfahren und Vorrichtung zur Bestimmung der Stoffkonzentration in gasförmigen oder fluiden Medien mittels optischer Absorptionsspektroskopie mit Breitbandlichtquellen
JP2010145320A (ja) * 2008-12-22 2010-07-01 General Packer Co Ltd ガス測定装置
WO2010099606A1 (en) 2009-03-02 2010-09-10 Genia Photonics Inc. Method for assessing an interaction of a sample with light beams having different wavelengths and apparatus for performing same
GB2468522B (en) * 2009-03-12 2013-08-07 Autoliv Dev A breath analyser
US8416415B2 (en) * 2009-04-27 2013-04-09 General Electric Company Gas turbine optical imaging system
CA2765280A1 (en) * 2009-06-12 2010-12-16 Spectrasensors, Inc. Optical absorbance measurements with self-calibration and extended dynamic range
WO2011031235A1 (en) * 2009-09-14 2011-03-17 Nitto Denko Corporation A detection method
US8184297B2 (en) * 2009-12-17 2012-05-22 General Electric Company Gas mixture measurement system and methods therefor
US8625098B2 (en) * 2010-12-17 2014-01-07 General Electric Company System and method for real-time measurement of equivalence ratio of gas fuel mixture
JP5440524B2 (ja) * 2011-02-21 2014-03-12 横河電機株式会社 レーザガス分析装置
DE102011080086B4 (de) * 2011-07-29 2016-04-28 Siemens Aktiengesellschaft Verfahren zur Messung der Konzentration einer Gaskomponente in einem Messgas
GB2493960B (en) 2011-08-25 2013-09-18 Brightwake Ltd Non-adherent wound dressing
US9459209B2 (en) * 2012-06-04 2016-10-04 Shimadzu Corporation Gas analysis device
KR101546342B1 (ko) 2013-04-12 2015-08-24 (주)아센 분석 장치
US10145784B2 (en) * 2013-07-22 2018-12-04 Dean O. Allgeyer, Md, Inc. Infusion set and spectroscopic analyzer for analysis of pharmaceuticals
US10145783B2 (en) * 2013-07-22 2018-12-04 Dean O. Allgeyer, Md, Inc. Infusion set and adapter for spectroscopic analysis of pharmaceuticals
EP2985592B1 (de) * 2014-08-13 2017-09-27 Siemens Aktiengesellschaft Absorptionsspektrometer und Verfahren zur Messung der Konzentration einer interessierenden Gaskomponente eines Messgases
RU2598694C2 (ru) * 2014-12-17 2016-09-27 Общество с ограниченной ответственностью "ПетроЛайт" (ООО "ПетроЛайт") Устройство и способ измерения концентрации газообразных веществ
CN104655588B (zh) * 2015-02-16 2017-08-25 中国科学院合肥物质科学研究院 基于可调谐激光吸收光谱的频率锁定装置及其锁定方法
CN105136740A (zh) * 2015-10-26 2015-12-09 中国人民解放军军事医学科学院卫生装备研究所 一种基于tdlas的温湿度监测系统
US10557792B2 (en) 2015-12-31 2020-02-11 Abb, Inc. Spectral modeling for complex absorption spectrum interpretation
US10087523B2 (en) 2016-05-20 2018-10-02 Lam Research Corporation Vapor delivery method and apparatus for solid and liquid precursors
US20170342562A1 (en) * 2016-05-31 2017-11-30 Lam Research Corporation Vapor manifold with integrated vapor concentration sensor
CN106290245A (zh) * 2016-07-29 2017-01-04 大连市艾科微波光电子工程研究有限公司 用于检测甲烷气体的装置及检测甲烷气体的方法
US10215691B2 (en) * 2016-11-15 2019-02-26 Infineon Technologies Ag Radar spectroscopy based gas sensor
DE102018006137A1 (de) * 2018-08-03 2020-02-06 Paragon Gmbh & Co. Kgaa Partikelmessvorrichtung und Verfahren zur Bestimmung der Partikelmassenkonzentrationen in Aerosolen
WO2020206006A1 (en) 2019-04-05 2020-10-08 Seekops Inc. Analog signal processing for a lightweight and compact laser-based trace gas sensor
WO2020227394A1 (en) 2019-05-07 2020-11-12 The Trustees Of Princeton University System and method for mainstream exhaled oxygen sensor
CN110186852B (zh) * 2019-06-26 2023-12-01 南京无书化工有限公司 一种双池串联光声光谱气体检测装置及方法
CN110632008B (zh) * 2019-09-26 2022-12-06 山东微感光电子有限公司 一种多点反射式光电气体传感器探头及光电气体检测装置
US11614430B2 (en) 2019-12-19 2023-03-28 Seekops Inc. Concurrent in-situ measurement of wind speed and trace gases on mobile platforms for localization and qualification of emissions
US11988598B2 (en) 2019-12-31 2024-05-21 Seekops Inc. Optical cell cleaner
WO2021195394A1 (en) 2020-03-25 2021-09-30 Seekops Inc. Logarithmic demodulator for laser wavelength-modulaton spectroscopy
RU2736178C1 (ru) * 2020-06-09 2020-11-12 федеральное государственное автономное образовательное учреждение высшего образования "Московский физико-технический институт (национальный исследовательский университет)" Способ и устройство для автономного дистанционного определения концентрации атмосферных газовых составляющих
US11748866B2 (en) 2020-07-17 2023-09-05 Seekops Inc. Systems and methods of automated detection of gas plumes using optical imaging
CN113295642A (zh) * 2021-05-17 2021-08-24 中国科学院合肥物质科学研究院 一种氨气分子吸收线参数的中红外光谱测量系统及方法
CN114279985B (zh) * 2021-12-22 2024-03-26 合肥中科镭谱光电科技有限公司 基于稳频激光的气体浓度检测系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524066A (en) * 1966-08-22 1970-08-11 Monsanto Co Fluid measurement system having sample chamber with opposed reflecting members for causing multiple reflections
FR2448134A1 (fr) * 1979-01-30 1980-08-29 Commissariat Energie Atomique Dispositif spectrophotometrique pour mesure a distance
JPS58223041A (ja) * 1982-06-18 1983-12-24 Fujitsu Ltd 分光分析装置
JPS6112530A (ja) * 1984-06-28 1986-01-20 Shin Meiwa Ind Co Ltd コンパクタ・コンテナにおけるコンテナ移動システム
GB2165640B (en) * 1984-10-13 1988-05-18 Stc Plc Gas or vapour concentration monitoring
JPH0623875B2 (ja) * 1985-08-29 1994-03-30 コニカ株式会社 複写装置
DE3633931A1 (de) * 1986-10-04 1988-04-07 Kernforschungsz Karlsruhe Verfahren und einrichtung zur kontinuierlichen messung der konzentration eines gasbestandteiles
US4934816A (en) * 1988-05-18 1990-06-19 Southwest Sciences, Incorporated Laser absorption detection enhancing apparatus and method
US4937461A (en) * 1988-08-22 1990-06-26 Traina John E Transmissometer having solid state light source

Also Published As

Publication number Publication date
SE8802536D0 (sv) 1988-07-07
EP0423223A1 (de) 1991-04-24
US5173749A (en) 1992-12-22
ATE127584T1 (de) 1995-09-15
WO1990000732A1 (en) 1990-01-25
NO910008D0 (no) 1991-01-03
DE68924163D1 (de) 1995-10-12
DK306690D0 (da) 1990-12-28
DE68924163T2 (de) 1996-05-02
JPH03505782A (ja) 1991-12-12
EP0423223B1 (de) 1995-09-06
FI910043A0 (fi) 1991-01-04
NO304620B1 (no) 1999-01-18
NO910008L (no) 1991-02-07
JP3108420B2 (ja) 2000-11-13

Similar Documents

Publication Publication Date Title
DK306690A (da) Fremgangsmaade ved og apparat til spektroskopisk maaling af koncentrationen af en gas
US5399866A (en) Optical system for detection of signal in fluorescent immunoassay
KR870003385A (ko) 용액 및 분산액의 분석방법
JPS6463842A (en) Method and apparatus for measuring concentration of optical material
KR900006776A (ko) 용융 용기내 액상 금속에 원소분석 장치 및 레이저를 광학적으로 결합하기 위한 방법 및 장치
DE3582120D1 (de) Infrarot-spektrophotometrische vorrichtung.
CA2024172A1 (en) Collimated light optrode
ATE263964T1 (de) Vorrichtung zum messen des magneto-optischen effektes
ATE119666T1 (de) Photometrische messeinrichtung.
Göbel et al. Enhancing the sensitivity of chemical sensors for chlorinated hydrocarbons in water by the use of tapered silver halide fibers and tunable diode lasers
US5172192A (en) In-situ spectrophotometric probe
DE3782104D1 (de) Spektralanalytisches gasmessgeraet.
WO1992009877A3 (en) Ftir remote sensor apparatus and method
US5485269A (en) System for minimizing native fiber fluorescence variations in fiber optic sensors
DE3566303D1 (en) Light coupling device for the optical reflectometry
Walker et al. Fiber optic based chemical sensor system for in-situ process measurements using the photothermal effect
SU1716403A1 (ru) Многолучевой фотометр
Ruddy et al. Spectroscopy of fluids using evanescent wave absorption on multimode fiber
JPS6488696A (en) Method and device for reading optical recording
RU2002215C1 (ru) Измеритель оптических потерь
JPS646846A (en) Chemical analysis apparatus
RU96123856A (ru) Способ измерения концентрации газа и устройство для его осуществления
KR940011945A (ko) 광섬유를 이용한 질소레이저 유도 우라늄 형광분석 장치
EA199600022A2 (ru) Устройство для определения показателя преломления и толщины