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FR2644892B1 - - Google Patents

Info

Publication number
FR2644892B1
FR2644892B1 FR9003777A FR9003777A FR2644892B1 FR 2644892 B1 FR2644892 B1 FR 2644892B1 FR 9003777 A FR9003777 A FR 9003777A FR 9003777 A FR9003777 A FR 9003777A FR 2644892 B1 FR2644892 B1 FR 2644892B1
Authority
FR
France
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 - Fee Related
Application number
FR9003777A
Other versions
FR2644892A1 (fr
Inventor
Nagai Haruo
Uehara Kiyoji
Aizawa Masafumi
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.)
Anritsu Corp
Original Assignee
Anritsu Corp
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 Anritsu Corp filed Critical Anritsu Corp
Publication of FR2644892A1 publication Critical patent/FR2644892A1/fr
Application granted granted Critical
Publication of FR2644892B1 publication Critical patent/FR2644892B1/fr
Granted 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
    • G01N21/17—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
    • 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
    • G01N2021/394—DIAL method

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR9003777A 1989-03-23 1990-03-23 Appareil de detection de gaz par absorption lumineuse Granted FR2644892A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7149289 1989-03-23
JP1343580A JPH0315742A (ja) 1989-03-23 1989-12-29 ガス検出装置

Publications (2)

Publication Number Publication Date
FR2644892A1 FR2644892A1 (fr) 1990-09-28
FR2644892B1 true FR2644892B1 (fr) 1994-11-10

Family

ID=26412593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9003777A Granted FR2644892A1 (fr) 1989-03-23 1990-03-23 Appareil de detection de gaz par absorption lumineuse

Country Status (3)

Country Link
US (1) US5015099A (fr)
JP (1) JPH0315742A (fr)
FR (1) FR2644892A1 (fr)

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US5202570A (en) * 1990-03-27 1993-04-13 Tokyo Gas Co., Ltd. Gas detection device
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US5200629A (en) * 1990-10-12 1993-04-06 Chlean Plants & Engineering Establishment Method and system for changing the concentration of one material in a fluid medium of mixed materials
DE4104785A1 (de) * 1991-02-14 1992-08-20 Zentralinstitut Fuer Optik Und Verfahren zum nachweis gasfoermiger substanzen
DE4300853C2 (de) * 1993-01-15 2003-09-04 Daimler Chrysler Ag Verfahren zur spektroskopischen Bestimmung des Stickstoffoxidgehalts
US5384640A (en) * 1993-01-19 1995-01-24 Gaztech International Corporation Gas sample chamber for use with a source of coherent radiation
FR2747192B1 (fr) * 1996-04-04 1998-04-30 Commissariat Energie Atomique Dispositif de detection de gaz a distance comportant un microlaser
US5991324A (en) * 1998-03-11 1999-11-23 Cymer, Inc. Reliable. modular, production quality narrow-band KRF excimer laser
US6040914A (en) * 1997-06-10 2000-03-21 New Focus, Inc. Simple, low cost, laser absorption sensor system
US5978391A (en) * 1997-07-18 1999-11-02 Cymer, Inc. Wavelength reference for excimer laser
US6330261B1 (en) 1997-07-18 2001-12-11 Cymer, Inc. Reliable, modular, production quality narrow-band high rep rate ArF excimer laser
US5930000A (en) * 1998-02-11 1999-07-27 Monitor Labs, Inc. Line-locked diode laser for gas spectroscopy
US6184981B1 (en) 1998-07-28 2001-02-06 Textron Systems Corporation Speckle mitigation for coherent detection employing a wide band signal
US6103532A (en) * 1998-08-14 2000-08-15 Tokheim Corporation Vapor recovery system utilizing a fiber-optic sensor to detect hydrocarbon emissions
DE19932354B4 (de) * 1999-07-10 2004-04-22 Gkss-Forschungszentrum Geesthacht Gmbh Verfahren und Vorrichtung zum Fernnachweis von Kohlenwasserstoffen im untergrund- oder bodennahen Bereich der Atmosphäre
JP4489282B2 (ja) * 2000-12-14 2010-06-23 独立行政法人科学技術振興機構 分光計測装置
WO2002061402A1 (fr) * 2001-01-30 2002-08-08 Anritsu Corporation Detecteur de gaz du type a diffraction spectrale a absorption laser, et procede de detection de gaz par diffraction spectrale a absorption laser
JP2002257726A (ja) * 2001-02-27 2002-09-11 Sunx Ltd 光電センサ
US6680778B2 (en) * 2001-11-08 2004-01-20 Michele Hinnrichs Gas leak detector
GB0228890D0 (en) 2002-12-11 2003-01-15 Qinetiq Ltd Laser radar apparatus
US20060263252A1 (en) * 2003-02-25 2006-11-23 Jorge Sanchez-Olea Apparatus and method for chemical and biological agent sensing
DE10316685A1 (de) * 2003-04-10 2004-10-28 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Vorichtung zur photometrischen Messung der Konzentration einer chemischen Substanz in einer Meßlösung
US20040263852A1 (en) * 2003-06-03 2004-12-30 Lasen, Inc. Aerial leak detector
US7132657B2 (en) * 2004-02-09 2006-11-07 Sensor Electronics Corporation Infrared gas detector
US7067812B2 (en) * 2004-10-27 2006-06-27 The Aerospace Corporation Multispectral selective reflective Lidar
US7291856B2 (en) * 2005-04-28 2007-11-06 Honeywell International Inc. Sensor and methods for measuring select components in moving sheet products
US7075653B1 (en) 2005-04-29 2006-07-11 Heath Consultants Incorporated Method and apparatus for laser-based remote methane leak detection
EP1793220B1 (fr) * 2005-12-01 2009-08-26 Pergam-Suisse Ag Détection mobile à distance de fluides par laser
US7859668B2 (en) 2005-12-15 2010-12-28 Honeywell International Inc. Apparatus and method for illuminator-independent color measurements
US8017927B2 (en) * 2005-12-16 2011-09-13 Honeywell International Inc. Apparatus, system, and method for print quality measurements using multiple adjustable sensors
US7573575B2 (en) 2005-12-29 2009-08-11 Honeywell International Inc. System and method for color measurements or other spectral measurements of a material
US7688447B2 (en) 2005-12-29 2010-03-30 Honeywell International Inc. Color sensor
JP4657956B2 (ja) * 2006-03-14 2011-03-23 三菱電機株式会社 差分吸収ライダ装置
JP2008298638A (ja) * 2007-05-31 2008-12-11 Hitachi Cable Ltd 光式ガス濃度検出方法及び光式ガス濃度検出装置
US7675619B2 (en) * 2007-11-14 2010-03-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Micro-LiDAR velocity, temperature, density, concentration sensor
JP2009129955A (ja) * 2007-11-20 2009-06-11 Epson Toyocom Corp 光学系及び原子発振器
US7592608B2 (en) * 2008-01-22 2009-09-22 Honeywell International Inc. Apparatus and method for measuring and/or controlling ultraviolet-activated materials in a paper-making process
US8049892B2 (en) * 2008-01-22 2011-11-01 Honeywell International Inc. Apparatus and method for camera-based color measurements
WO2010010684A1 (fr) * 2008-07-22 2010-01-28 三井造船株式会社 Dispositif d’examen de l’absorption des rayons infrarouges et procédé d’examen de l’absorption des rayons infrarouges
JP5337953B2 (ja) * 2009-01-14 2013-11-06 ゼネラルパッカー株式会社 ガス濃度測定方法及びガス濃度測定装置
US8269971B1 (en) * 2009-11-12 2012-09-18 Exelis, Inc. System and method for simultaneous detection of a gas using a mode-locked based transmitter
US8401809B2 (en) 2010-07-12 2013-03-19 Honeywell International Inc. System and method for adjusting an on-line appearance sensor system
JP5718153B2 (ja) * 2011-05-26 2015-05-13 株式会社トプコン 植物用センサ装置
CN103344607B (zh) * 2013-07-04 2015-07-29 太原理工大学 Tdlas中激光波长检测控制装置及其控制方法
WO2015172056A1 (fr) * 2014-05-09 2015-11-12 Kairos Aerospace Inc. Systèmes et procédés de détection de fuites de gaz
CN104089880B (zh) * 2014-07-11 2016-08-17 宇星科技发展(深圳)有限公司 多通道激光气体分析仪
WO2016031267A1 (fr) 2014-08-29 2016-03-03 国立大学法人東北大学 Procédé de mesure de concentration optique
SG11201703289YA (en) * 2014-11-23 2017-06-29 Fujikin Kk Optical gas concentration measuring method, and method for monitoring gas concentration by said method
US10458904B2 (en) 2015-09-28 2019-10-29 Ball Aerospace & Technologies Corp. Differential absorption lidar
US10215691B2 (en) * 2016-11-15 2019-02-26 Infineon Technologies Ag Radar spectroscopy based gas sensor
JP6414257B2 (ja) * 2017-03-16 2018-10-31 株式会社Ihi 濃度測定装置及び濃度測定方法
JP7261748B2 (ja) * 2017-06-09 2023-04-20 キャリア コーポレイション 室内空気の品質の検出および監視を備えたチャンバレス煙検出器
US10852438B2 (en) * 2017-08-21 2020-12-01 Caterpillar Inc. LIDAR waveform classification
EP3803338A1 (fr) * 2018-06-04 2021-04-14 Merck Patent GmbH Dispositif d'étalonnage pour un détecteur optique et dispositif de réglage pour régler des points d'étalonnage pour le dispositif d'étalonnage
US10921245B2 (en) 2018-06-08 2021-02-16 Ball Aerospace & Technologies Corp. Method and systems for remote emission detection and rate determination
CN115598659B (zh) * 2022-10-12 2024-08-06 山东国耀量子雷达科技有限公司 一种单光子甲烷浓度分布探测雷达

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US4489239A (en) * 1982-09-24 1984-12-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Portable remote laser sensor for methane leak detection
DE3334264A1 (de) * 1982-09-25 1984-04-05 Showa Denko K.K., Tokyo Verfahren und messgeraet zum messen der methan-konzentration in einem gasgemisch
JPS61222289A (ja) * 1985-03-28 1986-10-02 Tokyo Gas Co Ltd レ−ザ装置
JPS6298235A (ja) * 1985-10-25 1987-05-07 Tokyo Gas Co Ltd 気体の分布量測定方法
JPH0815225B2 (ja) * 1986-06-09 1996-02-14 東京瓦斯株式会社 ２波長発振レ−ザ装置
JPS62291982A (ja) * 1986-06-11 1987-12-18 Nippon Telegr & Teleph Corp <Ntt> 光パルス波長制御器
GB2197531B (en) * 1986-11-08 1991-02-06 Stc Plc Distributed feedback laser
JPH01254841A (ja) * 1988-04-05 1989-10-11 Fujitsu Ltd ガスセンサの信号処理方法
JPH01307640A (ja) * 1988-06-06 1989-12-12 Nkk Corp ガス検知装置
JPH01307639A (ja) * 1988-06-06 1989-12-12 Nkk Corp ガス検知装置
FR2639773B1 (fr) * 1988-11-25 1994-05-13 Alcatel Nv Laser a semi-conducteur accordable

Also Published As

Publication number Publication date
FR2644892A1 (fr) 1990-09-28
JPH0315742A (ja) 1991-01-24
US5015099A (en) 1991-05-14

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Legal Events

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