JPS56133647A - Detecting method of gas concentration - Google Patents

Detecting method of gas concentration

Info

Publication number
JPS56133647A
JPS56133647A JP3771780A JP3771780A JPS56133647A JP S56133647 A JPS56133647 A JP S56133647A JP 3771780 A JP3771780 A JP 3771780A JP 3771780 A JP3771780 A JP 3771780A JP S56133647 A JPS56133647 A JP S56133647A
Authority
JP
Japan
Prior art keywords
laser
value
current
oscillation light
detector
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.)
Granted
Application number
JP3771780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6249575B2 (enrdf_load_stackoverflow
Inventor
Hirobumi Kashiwara
Hiroyuki Ishizaki
Koji Shinohara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3771780A priority Critical patent/JPS56133647A/ja
Publication of JPS56133647A publication Critical patent/JPS56133647A/ja
Publication of JPS6249575B2 publication Critical patent/JPS6249575B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP3771780A 1980-03-24 1980-03-24 Detecting method of gas concentration Granted JPS56133647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3771780A JPS56133647A (en) 1980-03-24 1980-03-24 Detecting method of gas concentration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3771780A JPS56133647A (en) 1980-03-24 1980-03-24 Detecting method of gas concentration

Publications (2)

Publication Number Publication Date
JPS56133647A true JPS56133647A (en) 1981-10-19
JPS6249575B2 JPS6249575B2 (enrdf_load_stackoverflow) 1987-10-20

Family

ID=12505260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3771780A Granted JPS56133647A (en) 1980-03-24 1980-03-24 Detecting method of gas concentration

Country Status (1)

Country Link
JP (1) JPS56133647A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6249575B2 (enrdf_load_stackoverflow) 1987-10-20

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