CA2087439C - Teledetecteur a l'infrarouge avec transformation de fourier et methode d'utilisation de celui-ci - Google Patents

Teledetecteur a l'infrarouge avec transformation de fourier et methode d'utilisation de celui-ci

Info

Publication number
CA2087439C
CA2087439C CA002087439A CA2087439A CA2087439C CA 2087439 C CA2087439 C CA 2087439C CA 002087439 A CA002087439 A CA 002087439A CA 2087439 A CA2087439 A CA 2087439A CA 2087439 C CA2087439 C CA 2087439C
Authority
CA
Canada
Prior art keywords
target area
infrared beam
gases
wavelength band
broad wavelength
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.)
Expired - Fee Related
Application number
CA002087439A
Other languages
English (en)
Inventor
Orman A. Simpson
Robert H. Kagann
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.)
MDA Scientific Inc
Original Assignee
MDA Scientific 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 MDA Scientific Inc filed Critical MDA Scientific Inc
Application granted granted Critical
Publication of CA2087439C publication Critical patent/CA2087439C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N21/35—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
    • G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
    • 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
    • G01N21/031—Multipass arrangements
    • G01N2021/0314—Double pass, autocollimated 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
    • G01N2021/1793—Remote sensing
    • 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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA002087439A 1990-07-16 1991-07-15 Teledetecteur a l'infrarouge avec transformation de fourier et methode d'utilisation de celui-ci Expired - Fee Related CA2087439C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US554,511 1983-11-23
US55451190A 1990-07-16 1990-07-16

Publications (1)

Publication Number Publication Date
CA2087439C true CA2087439C (fr) 1996-07-09

Family

ID=24213648

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002087439A Expired - Fee Related CA2087439C (fr) 1990-07-16 1991-07-15 Teledetecteur a l'infrarouge avec transformation de fourier et methode d'utilisation de celui-ci

Country Status (5)

Country Link
EP (1) EP0541734A4 (fr)
JP (1) JPH07503532A (fr)
AU (1) AU1567392A (fr)
CA (1) CA2087439C (fr)
WO (1) WO1992009877A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274163B (en) * 1993-01-12 1996-11-20 Pollution Monitor Syst Ltd Gas analyser
GB2373045B (en) * 2001-05-01 2003-01-29 Golden River Traffic Ltd Measurement of vehicle emissions
EP2839265B1 (fr) * 2012-04-19 2017-07-26 Zolo Technologies, Inc. Rétroréflecteurs internes de four avec spectromètre à absorption à diode laser accordable orientable
GB2507721A (en) * 2012-09-28 2014-05-14 Thales Holdings Uk Plc Optical cell comprising a telescope
GB2583377A (en) * 2019-04-26 2020-10-28 Univ Heriot Watt Systems and methods using active FTIR spectroscopy for detection of chemical targets
GB2593195B (en) * 2020-03-18 2023-02-22 Thermo Fisher Scient Ecublens Sarl Multipass cell

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930893A (en) * 1956-05-21 1960-03-29 Lane B Carpenter Long path infrared detection of atmospheric contaminants
DE3072067D1 (en) * 1979-09-05 1988-02-18 Ici Plc Method of and apparatus for monitoring gaseous pollutants
JPS5759145A (en) * 1980-09-27 1982-04-09 Fujitsu Ltd Apparatus for spectroscopic analysis by infrared ray
JPS57108640A (en) * 1980-12-25 1982-07-06 Fujitsu Ltd Method for detecting gas concentration
DD207258A1 (de) * 1982-04-16 1984-02-22 Dieter Schubert Anordnung zur erzeugung paralleler lichtbuendel
JPS58213235A (ja) * 1982-06-04 1983-12-12 Fujitsu Ltd ガス検出方式
US4746218A (en) * 1984-06-12 1988-05-24 Syconex Corporation Gas detectors and gas analyzers utilizing spectral absorption
NL8503360A (nl) * 1985-12-05 1987-07-01 Tno Werkwijze voor het vaststellen van de verdeling van een gas in een ruimte, retro-reflecterend scherm voor infrarode straling en inrichting voor het met behulp van zo een scherm en een stralingsbron voor infrarode straling vaststellen van de verdeling van een gas in een ruimte.
DE3624567A1 (de) * 1986-07-21 1988-03-24 Sick Optik Elektronik Erwin Spektralanalytisches gasmessgeraet
US4924095A (en) * 1987-06-02 1990-05-08 West Lodge Research Remote gas analyzer for motor vehicle exhaust emissions surveillance

Also Published As

Publication number Publication date
WO1992009877A2 (fr) 1992-06-11
EP0541734A1 (fr) 1993-05-19
JPH07503532A (ja) 1995-04-13
AU1567392A (en) 1992-06-25
EP0541734A4 (en) 1993-07-28
WO1992009877A3 (fr) 1993-01-21

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