DE3734401C2 - - Google Patents

Info

Publication number
DE3734401C2
DE3734401C2 DE3734401A DE3734401A DE3734401C2 DE 3734401 C2 DE3734401 C2 DE 3734401C2 DE 3734401 A DE3734401 A DE 3734401A DE 3734401 A DE3734401 A DE 3734401A DE 3734401 C2 DE3734401 C2 DE 3734401C2
Authority
DE
Germany
Prior art keywords
laser
absorption
absorption line
spectrometer according
signal
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
Application number
DE3734401A
Other languages
German (de)
English (en)
Other versions
DE3734401A1 (de
Inventor
Horst Dipl.-Ing. Dr. Acton Us Preier
Roland Dr. 7800 Freiburg De Grisar
Wolfgang Dipl.-Phys. 7844 Neuenburg De Riedel
Bernard 7800 Freiburg De Halford
Helmut Dipl.-Phys. 7802 Merzhausen De Wolf
Ulrich Dipl.-Math. 7600 Offenburg De Klocke
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE19873734401 priority Critical patent/DE3734401A1/de
Publication of DE3734401A1 publication Critical patent/DE3734401A1/de
Application granted granted Critical
Publication of DE3734401C2 publication Critical patent/DE3734401C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
    • 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
    • G01N21/35—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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Optics & Photonics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Semiconductor Lasers (AREA)
DE19873734401 1987-10-12 1987-10-12 Laserabsorptionsspektrometer Granted DE3734401A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873734401 DE3734401A1 (de) 1987-10-12 1987-10-12 Laserabsorptionsspektrometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873734401 DE3734401A1 (de) 1987-10-12 1987-10-12 Laserabsorptionsspektrometer

Publications (2)

Publication Number Publication Date
DE3734401A1 DE3734401A1 (de) 1989-04-27
DE3734401C2 true DE3734401C2 (US20040232935A1-20041125-M00001.png) 1989-09-21

Family

ID=6338106

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873734401 Granted DE3734401A1 (de) 1987-10-12 1987-10-12 Laserabsorptionsspektrometer

Country Status (1)

Country Link
DE (1) DE3734401A1 (US20040232935A1-20041125-M00001.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012454C1 (US20040232935A1-20041125-M00001.png) * 1990-04-19 1991-08-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen, De

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655781A1 (fr) * 1989-12-08 1991-06-14 Oscilloquartz Sa Circuit de stabilisation de la frequence d'emission d'une diode laser et diode laser stabilisee.
DE4000583A1 (de) * 1990-01-10 1991-07-11 Muetek Gmbh Verfahren zum betreiben eines strahlungsabsorptionsspektrometers
DE4110095C2 (de) * 1991-03-27 1998-02-12 Draegerwerk Ag Verfahren zur gasspektroskopischen Messung der Konzentration eines Gasbestandteiles
US6351309B1 (en) 1991-08-06 2002-02-26 Southwest Sciences Incorporated Dual modulation laser line-locking technique for wavelength modulation spectroscopy
US5969825A (en) * 1991-08-06 1999-10-19 Southwest Sciences Incorporated Dual-modulation laser line-locking for wavelength modulation spectroscopy
CA2183502C (en) * 1995-08-24 2008-10-14 John Tulip Gas detector
DE19807481A1 (de) * 1998-02-24 1999-08-26 Wolfrum Verfahren und Vorrichtung zur Ermittlung der Absorption einer Gas- und Flüssigkeitsprobe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3106331C2 (de) * 1981-02-20 1986-05-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Gerät zur Bestimmung der Konzentration eines Bestandteils einer Meßgasprobe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012454C1 (US20040232935A1-20041125-M00001.png) * 1990-04-19 1991-08-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen, De

Also Published As

Publication number Publication date
DE3734401A1 (de) 1989-04-27

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee