DE69122181T2 - Verfahren und Vorrichtung zur Messung der Absorption von lichtstreuenden Stoffen - Google Patents

Verfahren und Vorrichtung zur Messung der Absorption von lichtstreuenden Stoffen

Info

Publication number
DE69122181T2
DE69122181T2 DE1991622181 DE69122181T DE69122181T2 DE 69122181 T2 DE69122181 T2 DE 69122181T2 DE 1991622181 DE1991622181 DE 1991622181 DE 69122181 T DE69122181 T DE 69122181T DE 69122181 T2 DE69122181 T2 DE 69122181T2
Authority
DE
Germany
Prior art keywords
absorption
measuring
light
scattering substances
scattering
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
DE1991622181
Other languages
English (en)
Other versions
DE69122181D1 (de
Inventor
Yoshitoshi Itoh
Fumio Kawaguchi
Minoru Yoshida
Keiichi Nagai
Hiroyuki Kohida
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE69122181D1 publication Critical patent/DE69122181D1/de
Publication of DE69122181T2 publication Critical patent/DE69122181T2/de
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
    • G01N21/39—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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • 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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3148—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using three or more wavelengths
    • 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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3181—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using LEDs
    • 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
    • G01N2021/396—Type of laser source
    • G01N2021/399—Diode laser

Landscapes

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
DE1991622181 1990-06-22 1991-06-20 Verfahren und Vorrichtung zur Messung der Absorption von lichtstreuenden Stoffen Expired - Fee Related DE69122181T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16265190A JPH0454437A (ja) 1990-06-22 1990-06-22 散乱性物体の光吸収測定方法およびその装置

Publications (2)

Publication Number Publication Date
DE69122181D1 DE69122181D1 (de) 1996-10-24
DE69122181T2 true DE69122181T2 (de) 1997-02-20

Family

ID=15758676

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1991622181 Expired - Fee Related DE69122181T2 (de) 1990-06-22 1991-06-20 Verfahren und Vorrichtung zur Messung der Absorption von lichtstreuenden Stoffen

Country Status (3)

Country Link
EP (1) EP0464495B1 (de)
JP (1) JPH0454437A (de)
DE (1) DE69122181T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5407794B2 (ja) * 2009-11-19 2014-02-05 日本電気株式会社 テラヘルツ光を用いた物質成分の解析装置及びテラヘルツ光を用いた物質成分の解析方法
CA2814389A1 (en) * 2011-05-26 2012-11-29 Fuji Electric Co., Ltd. Light source device, analysis device, and light generation method
US9151672B2 (en) * 2013-11-21 2015-10-06 Agilent Technologies, Inc. Optical absorption spectrometry system including dichroic beam combiner and splitter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350441A (en) * 1980-06-30 1982-09-21 Baxter Travenol Laboratories, Inc. Photometric apparatus and method
DK282085D0 (da) * 1985-06-21 1985-06-21 Radiometer As Fremgangsmaade og apparat til bestemmelse af blodkomponenter
EP0240742A3 (de) * 1986-03-07 1989-01-11 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Apparat und Verfahren zum Messen der Menge vom Sauerstoff im Blut
JPS63218841A (ja) * 1986-10-29 1988-09-12 Nippon Koden Corp 血中吸光物の濃度測定装置

Also Published As

Publication number Publication date
EP0464495A1 (de) 1992-01-08
EP0464495B1 (de) 1996-09-18
DE69122181D1 (de) 1996-10-24
JPH0454437A (ja) 1992-02-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee