JPS51134171A - Automatic sensitivity-adjusting circuit - Google Patents

Automatic sensitivity-adjusting circuit

Info

Publication number
JPS51134171A
JPS51134171A JP5736175A JP5736175A JPS51134171A JP S51134171 A JPS51134171 A JP S51134171A JP 5736175 A JP5736175 A JP 5736175A JP 5736175 A JP5736175 A JP 5736175A JP S51134171 A JPS51134171 A JP S51134171A
Authority
JP
Japan
Prior art keywords
adjusting circuit
automatic sensitivity
sensitivity
automatic
circuit
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.)
Pending
Application number
JP5736175A
Other languages
Japanese (ja)
Inventor
Hiroshi Hashimoto
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
Priority to JP5736175A priority Critical patent/JPS51134171A/en
Publication of JPS51134171A publication Critical patent/JPS51134171A/en
Pending 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)

Abstract

PURPOSE:The circuit is stable for a long time and makes it possible to adjust the sensitivity automatically.
JP5736175A 1975-05-16 1975-05-16 Automatic sensitivity-adjusting circuit Pending JPS51134171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5736175A JPS51134171A (en) 1975-05-16 1975-05-16 Automatic sensitivity-adjusting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5736175A JPS51134171A (en) 1975-05-16 1975-05-16 Automatic sensitivity-adjusting circuit

Publications (1)

Publication Number Publication Date
JPS51134171A true JPS51134171A (en) 1976-11-20

Family

ID=13053428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5736175A Pending JPS51134171A (en) 1975-05-16 1975-05-16 Automatic sensitivity-adjusting circuit

Country Status (1)

Country Link
JP (1) JPS51134171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848832A (en) * 1981-09-17 1983-03-22 Horiba Ltd Compensation circuit for analizer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630617A (en) * 1970-01-02 1971-12-28 Bausch & Lomb Automatic calibration of an optical measuring system employing a photomultiplier or like device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630617A (en) * 1970-01-02 1971-12-28 Bausch & Lomb Automatic calibration of an optical measuring system employing a photomultiplier or like device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848832A (en) * 1981-09-17 1983-03-22 Horiba Ltd Compensation circuit for analizer

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