WO2013135611A3 - Vorrichtung und verfahren zum messen eines zielgases - Google Patents

Vorrichtung und verfahren zum messen eines zielgases Download PDF

Info

Publication number
WO2013135611A3
WO2013135611A3 PCT/EP2013/054837 EP2013054837W WO2013135611A3 WO 2013135611 A3 WO2013135611 A3 WO 2013135611A3 EP 2013054837 W EP2013054837 W EP 2013054837W WO 2013135611 A3 WO2013135611 A3 WO 2013135611A3
Authority
WO
WIPO (PCT)
Prior art keywords
target gas
excitation
measuring
target
laser beam
Prior art date
Application number
PCT/EP2013/054837
Other languages
English (en)
French (fr)
Other versions
WO2013135611A2 (de
WO2013135611A4 (de
Inventor
Johannes Herbst
Armin Lambrecht
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Publication of WO2013135611A2 publication Critical patent/WO2013135611A2/de
Publication of WO2013135611A3 publication Critical patent/WO2013135611A3/de
Publication of WO2013135611A4 publication Critical patent/WO2013135611A4/de

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
    • G01N21/171Systems in which incident light is modified in accordance with the properties of the material investigated with calorimetric detection, e.g. with thermal lens detection
    • 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
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/10Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/26Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
    • 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
    • G01N21/171Systems in which incident light is modified in accordance with the properties of the material investigated with calorimetric detection, e.g. with thermal lens detection
    • G01N2021/1714Photothermal radiometry with measurement of emission

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Multimedia (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Messen eines Zielgases, mit einem Anregungslaser 1 zur Emission eines infraroten Laserstrahls 2, der auf einen Zielort lenkbar ist, an dem sich das Zielgas 3 befinden kann, und dessen Wellenlänge auf eine Anregungswellenlänge einer Absorptionslinie des Zielgases 3 abstimmbar ist, die durch Anregung eines Zustandes des Rotationsschwingungsspektrums des Zielgases zustande kommt, mit einer Detektionsanordnung mit einem Messdetektor 5 zur Detektion einer von dem Zielort ausgehenden, durch das Zielgas 3 beeinflussbaren Strahlung, und mit einer Analyseeinrichtung 6 zur Analyse eines Ausgangssignals des Messdetektors 5 in Abhängigkeit von dem von dem Anregungslaser 1 emittierten Laserstrahl 2. Ein einfacherer Aufbau und eine gute Messempfindlichkeit werden dadurch erzielt, dass der Anregungslaser 1 so ausgebildet ist, dass mit dem infraroten Laserstrahl 2 eine Absorptionslinie des Zielgases 3 derart anregbar ist, dass die Anregung zu einer Temperaturerhöhung des Zielgases 3 führt, und dass die Detektionsanordnung zum Messen einer durch die Temperaturerhöhung beeinflussbare Eigenschaft des Zielgases 3 ausgestattet ist.
PCT/EP2013/054837 2012-03-14 2013-03-11 Vorrichtung und verfahren zum messen eines zielgases WO2013135611A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210004977 DE102012004977B3 (de) 2012-03-14 2012-03-14 Vorrichtung und Verfahren zum Messen eines Zielgases
DE102012004977.3 2012-03-14

Publications (3)

Publication Number Publication Date
WO2013135611A2 WO2013135611A2 (de) 2013-09-19
WO2013135611A3 true WO2013135611A3 (de) 2013-11-07
WO2013135611A4 WO2013135611A4 (de) 2013-12-19

Family

ID=48051534

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/054837 WO2013135611A2 (de) 2012-03-14 2013-03-11 Vorrichtung und verfahren zum messen eines zielgases

Country Status (2)

Country Link
DE (1) DE102012004977B3 (de)
WO (1) WO2013135611A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015201337A1 (de) * 2015-01-27 2016-07-28 Deutsches Zentrum für Luft- und Raumfahrt e.V. IR-basierte Geschwindigkeitsfeldbestimmung
CN107024432A (zh) * 2017-03-15 2017-08-08 金华职业技术学院 一种用于探测高腐蚀性气体的简易光声探测器
CN108107022A (zh) * 2018-01-18 2018-06-01 中国科学院西安光学精密机械研究所 一种非接触式海洋溶解高温气体监测仪和监测方法
CN108414469B (zh) * 2018-03-27 2023-10-27 安徽中科华仪科技有限公司 基于tdlas扫描收发一体式机动车尾气遥感测量装置及方法
GB2586075B (en) * 2019-08-02 2021-07-28 Qlm Tech Ltd Rapidly tuneable diode lidar

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496839A (en) * 1982-11-03 1985-01-29 Spectral Sciences Incorporated System and method for remote detection and identification of chemical species by laser initiated nonresonant infrared spectroscopy
US20020166969A1 (en) * 2001-03-14 2002-11-14 Mau-Song Chou Remote trace gas detection and analysis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727050A (en) * 1971-09-20 1973-04-10 Perkin Elmer Corp Gas analyzer
US4868768A (en) * 1986-09-17 1989-09-19 The United States Of America As Represented By The United States Department Of Energy Optical absorption measurement system
US5892140A (en) * 1997-04-30 1999-04-06 Honeywell Inc. Micromachined inferential opto-thermal gas sensor
US6876450B2 (en) * 2001-01-30 2005-04-05 Anritsu Corporation Laser absorption spectral diffraction type gas detector and method for gas detection using laser absorption spectral diffraction
US20100296083A1 (en) * 2008-02-12 2010-11-25 Pranalytica, Inc. Detection and identification of solid matter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496839A (en) * 1982-11-03 1985-01-29 Spectral Sciences Incorporated System and method for remote detection and identification of chemical species by laser initiated nonresonant infrared spectroscopy
US20020166969A1 (en) * 2001-03-14 2002-11-14 Mau-Song Chou Remote trace gas detection and analysis

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DENNIS K. KILLINGER ET AL: "Absorption and Emission Based Lidar Remote Sensing of Chemical Species", LATIN AMERICA OPTICS AND PHOTONICS CONFERENCE, 27 September 2010 (2010-09-27), XP055068895, Retrieved from the Internet <URL:http://www.opticsinfobase.org/abstract.cfm?URI=LAOP-2010-ME3> [retrieved on 20130701] *
FARAHI R H ET AL: "Pump probe photothermal spectroscopy using quantum cascade lasers", JOURNAL OF PHYSICS D. APPLIED PHYSICS, IOP PUBLISHING, BRISTOL, GB, vol. 45, no. 12, 6 March 2012 (2012-03-06), pages 125101, XP020219064, ISSN: 0022-3727, DOI: 10.1088/0022-3727/45/12/125101 *
FURSTENBERG R ET AL: "Stand-off detection of trace explosives via resonant infrared photothermal imaging", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US, vol. 93, no. 22, 4 December 2008 (2008-12-04), pages 224103 - 224103, XP012112742, ISSN: 0003-6951, DOI: 10.1063/1.3027461 *
SHUICHI. KAWASAKI ET AL: "Thermal lens spectrophotometry using a tunable infrared laser generated by a stimulated Raman effect", ANALYTICAL CHEMISTRY, vol. 59, no. 3, 1 February 1987 (1987-02-01), pages 523 - 525, XP055068561, ISSN: 0003-2700, DOI: 10.1021/ac00130a033 *

Also Published As

Publication number Publication date
WO2013135611A2 (de) 2013-09-19
DE102012004977B3 (de) 2013-04-25
WO2013135611A4 (de) 2013-12-19

Similar Documents

Publication Publication Date Title
EP2693198B1 (de) Gasanalysator und Verfahren zur Konzentrationsmessung von Formaldehyd
WO2014128161A3 (de) Vorrichtung und verfahren zur berührungslosen detektion eines nicht infrarotaktiven zielgases
WO2013135611A3 (de) Vorrichtung und verfahren zum messen eines zielgases
CY1117422T1 (el) Ανιχνευτης υπερυθρης παρουσιας για την ανιχνευση μιας παρουσιας ενος αντικειμενου σε μια περιοχη επιτηρησης
WO2012059743A3 (en) Temperature calibration methods and apparatus for optical absorption gas sensors, and optical absorption gas sensors thereby calibrated
WO2016132222A3 (en) Scanning infrared measurement system
PL399354A1 (pl) Sposób i urzadzenie do zdalnego wykrywania par alkoholu w atmosferze
WO2014141116A9 (en) Apparatus, methods and systems for measuring and detecting electrical discharge
TW200722712A (en) Sensor and external turbulence measuring method using the same
IN2014MN02008A (de)
WO2011137547A3 (de) Vorrichtung zur berührungslosen und zerstörungsfreien prüfung von oberflächen
GB201316221D0 (en) Concealed dangerous articles detection method and device
WO2012142456A3 (en) Backscatter system with variable size of detector array
WO2013186559A3 (en) Methods for determining material and/or subsurface composition
WO2017030652A8 (en) Sensing targets using photothermal speckle detection
WO2010090872A3 (en) Correlation interferometric methods, devices and systems for low cost and rugged spectroscopy
SE0801550L (sv) Ett för spektralanalys anpassat arrangemang
JP2017026599A (ja) 水素ガス検査方法および水素ガス検査装置
WO2012012163A3 (en) Apparatus, system, and method for increasing measurement accuracy in a particle imaging device
Scholz et al. MID-IR led-based, photoacoustic CO2 sensor
EP2500712A3 (de) Gaskonzentrationsmessgerät
WO2014132046A3 (en) Photoacoustic chemical detector
WO2015021335A3 (en) Optopairs with temperature compensable electroluminescence for use in optical gas absorption analyzer
RU2015132842A (ru) Способ и устройство для определения концентрации
NZ713752A (en) Method of and apparatus for correcting for intensity deviations in a spectrometer

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13715901

Country of ref document: EP

Kind code of ref document: A2

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13715901

Country of ref document: EP

Kind code of ref document: A2