DE3682373D1 - Schaltkreis zur empfindlichkeitskalibrierung von absorptionsanalysegeraeten. - Google Patents

Schaltkreis zur empfindlichkeitskalibrierung von absorptionsanalysegeraeten.

Info

Publication number
DE3682373D1
DE3682373D1 DE8686111872T DE3682373T DE3682373D1 DE 3682373 D1 DE3682373 D1 DE 3682373D1 DE 8686111872 T DE8686111872 T DE 8686111872T DE 3682373 T DE3682373 T DE 3682373T DE 3682373 D1 DE3682373 D1 DE 3682373D1
Authority
DE
Germany
Prior art keywords
temperature
checking
analyzer
calibration
state
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
DE8686111872T
Other languages
English (en)
Inventor
Nobutaka Kihara
Ichiro Asano
Kennosuke Kojima
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.)
Horiba Ltd
Original Assignee
Horiba 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 Horiba Ltd filed Critical Horiba Ltd
Application granted granted Critical
Publication of DE3682373D1 publication Critical patent/DE3682373D1/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
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (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)
DE8686111872T 1985-11-09 1986-08-27 Schaltkreis zur empfindlichkeitskalibrierung von absorptionsanalysegeraeten. Expired - Fee Related DE3682373D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60251524A JPS62112038A (ja) 1985-11-09 1985-11-09 吸光分析計における感度校正機構

Publications (1)

Publication Number Publication Date
DE3682373D1 true DE3682373D1 (de) 1991-12-12

Family

ID=17224089

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686111872T Expired - Fee Related DE3682373D1 (de) 1985-11-09 1986-08-27 Schaltkreis zur empfindlichkeitskalibrierung von absorptionsanalysegeraeten.

Country Status (5)

Country Link
US (1) US4766304A (de)
EP (1) EP0222993B1 (de)
JP (1) JPS62112038A (de)
AT (1) ATE69307T1 (de)
DE (1) DE3682373D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933543A (en) * 1987-09-25 1990-06-12 Chesley F. Carlson Dark signal compensation for diode arrays
US4918311A (en) * 1988-04-15 1990-04-17 Andros Analyzers Incorporated Set point control circuit for an infrared gas analyzer
DE3879211T2 (de) * 1988-11-04 1993-09-16 Horiba Ltd Temperaturkompensationsschaltung.
FI934871A0 (fi) * 1993-11-03 1993-11-03 Instrumentarium Oy Foerfarande och anordning foer kompensering av vaermekrypningen hos en gasanalysator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783300A (en) * 1972-09-18 1974-01-01 Atomic Energy Commission Automatic photomultiplier tube voltage controller
US3840305A (en) * 1973-07-20 1974-10-08 Itt Electro-optical apparatus with temperature compensation
US3988682A (en) * 1975-06-23 1976-10-26 The United States Of America As Represented By The Secretary Of The Navy Voltage ramp temperature controller
DD132814B1 (de) * 1977-08-24 1981-02-25 Volkmar Hess Schaltungsanordnung zur temperaturkompensation von nichtdispersiven infrarot-gasanalysatoren
US4167665A (en) * 1977-10-31 1979-09-11 Dasibi Environmental Corporation Automatic calibration circuit for gas analyzers
US4346296A (en) * 1980-08-15 1982-08-24 Andros Analyzers Incorporated Non-dispersive infrared gas analyzer
US4358679A (en) * 1980-09-02 1982-11-09 Astro Safety Products Inc. Calibration of analyzers employing radiant energy
DD154915A1 (de) * 1980-12-01 1982-04-28 Hartmut Sommerlatt Anordnung zur kompensation des temperatureinflusses auf einem elektrischen messwertgeber

Also Published As

Publication number Publication date
ATE69307T1 (de) 1991-11-15
EP0222993A3 (en) 1988-05-04
JPH052182B2 (de) 1993-01-11
EP0222993A2 (de) 1987-05-27
EP0222993B1 (de) 1991-11-06
US4766304A (en) 1988-08-23
JPS62112038A (ja) 1987-05-23

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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