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

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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
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Denmark
Prior art keywords
gas
measurement
concentration
pct
sample
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DK306690A
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Danish (da)
English (en)
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DK306690D0 (da
Inventor
Robert Tell
Torbjoern Andersson
Stefan Lundqvist
Henrik Ahlberg
Original Assignee
Altoptronic Ab
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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

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    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/031—Multipass arrangements
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4242—Modulated light, e.g. for synchronizing source and detector circuit
    • 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
    • G01N2021/1748—Comparative step being essential in the method
    • G01N2021/1751—Constructive features therefore, e.g. using two measurement cells
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/08—Optical fibres; light guides
    • G01N2201/0826—Fibre array at source, distributing

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  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Optical Measuring Cells (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) FI910043A7 (de)
NO (1) NO304620B1 (de)
SE (1) SE8802536D0 (de)
WO (1) WO1990000732A1 (de)

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FI910043A0 (fi) 1991-01-04
EP0423223B1 (de) 1995-09-06
WO1990000732A1 (en) 1990-01-25
SE8802536D0 (sv) 1988-07-07
NO910008D0 (no) 1991-01-03
DK306690D0 (da) 1990-12-28
US5173749A (en) 1992-12-22
NO910008L (no) 1991-02-07
NO304620B1 (no) 1999-01-18
JPH03505782A (ja) 1991-12-12
DE68924163D1 (de) 1995-10-12
FI910043A7 (fi) 1991-01-04
EP0423223A1 (de) 1991-04-24
JP3108420B2 (ja) 2000-11-13
ATE127584T1 (de) 1995-09-15
DE68924163T2 (de) 1996-05-02

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