JPS5436777A - Gas detector - Google Patents

Gas detector

Info

Publication number
JPS5436777A
JPS5436777A JP10287777A JP10287777A JPS5436777A JP S5436777 A JPS5436777 A JP S5436777A JP 10287777 A JP10287777 A JP 10287777A JP 10287777 A JP10287777 A JP 10287777A JP S5436777 A JPS5436777 A JP S5436777A
Authority
JP
Japan
Prior art keywords
gas detector
wavelength
output signals
ultrared
existence
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
JP10287777A
Other languages
Japanese (ja)
Inventor
Tsunehiko Araki
Yoshihiko Okuda
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP10287777A priority Critical patent/JPS5436777A/en
Publication of JPS5436777A publication Critical patent/JPS5436777A/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
    • G01N21/31—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

Landscapes

  • Physics & Mathematics (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:To detect the existence of gases without error by introducing an ultrared ray through a gas detecting bath and an ultrared filter so that it may be electrically converted and by comparing the output signals of one wavelength with the output signals of a wavelength in the vicinity thereof.
JP10287777A 1977-08-26 1977-08-26 Gas detector Pending JPS5436777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10287777A JPS5436777A (en) 1977-08-26 1977-08-26 Gas detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10287777A JPS5436777A (en) 1977-08-26 1977-08-26 Gas detector

Publications (1)

Publication Number Publication Date
JPS5436777A true JPS5436777A (en) 1979-03-17

Family

ID=14339112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10287777A Pending JPS5436777A (en) 1977-08-26 1977-08-26 Gas detector

Country Status (1)

Country Link
JP (1) JPS5436777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0299192A (en) * 1988-10-04 1990-04-11 Nagasaki Nitto Kk Decoloration of colored wastewater and apparatus for decoloration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0299192A (en) * 1988-10-04 1990-04-11 Nagasaki Nitto Kk Decoloration of colored wastewater and apparatus for decoloration

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