JPS5438180A - Gas detector - Google Patents

Gas detector

Info

Publication number
JPS5438180A
JPS5438180A JP10530277A JP10530277A JPS5438180A JP S5438180 A JPS5438180 A JP S5438180A JP 10530277 A JP10530277 A JP 10530277A JP 10530277 A JP10530277 A JP 10530277A JP S5438180 A JPS5438180 A JP S5438180A
Authority
JP
Japan
Prior art keywords
gas detector
gas
contamination
dust
sealed
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
JP10530277A
Other languages
Japanese (ja)
Inventor
Tsunehiko Araki
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 JP10530277A priority Critical patent/JPS5438180A/en
Publication of JPS5438180A publication Critical patent/JPS5438180A/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)
  • Emergency Alarm Devices (AREA)

Abstract

PURPOSE:To prevent malfunction by contamination of dust of light transmitting body by providing a hermetic case which is closed with transparent bodies and is sealed with the same gas as the gas to be detected.
JP10530277A 1977-08-31 1977-08-31 Gas detector Pending JPS5438180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10530277A JPS5438180A (en) 1977-08-31 1977-08-31 Gas detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10530277A JPS5438180A (en) 1977-08-31 1977-08-31 Gas detector

Publications (1)

Publication Number Publication Date
JPS5438180A true JPS5438180A (en) 1979-03-22

Family

ID=14403890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10530277A Pending JPS5438180A (en) 1977-08-31 1977-08-31 Gas detector

Country Status (1)

Country Link
JP (1) JPS5438180A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051752A2 (en) * 1980-11-12 1982-05-19 Weilin Liau Dentifrice, its method of manufacture and gargle
US4632824A (en) * 1983-06-06 1986-12-30 G-C Dental Industrial Corporation Compositions applied in the mouth

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051752A2 (en) * 1980-11-12 1982-05-19 Weilin Liau Dentifrice, its method of manufacture and gargle
EP0051752A3 (en) * 1980-11-12 1983-02-09 Weilin Liau Dentifrice, its method of manufacture and gargle
US4632824A (en) * 1983-06-06 1986-12-30 G-C Dental Industrial Corporation Compositions applied in the mouth

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