JPS545777A - Infrated absorption type gas alarming device - Google Patents

Infrated absorption type gas alarming device

Info

Publication number
JPS545777A
JPS545777A JP7123077A JP7123077A JPS545777A JP S545777 A JPS545777 A JP S545777A JP 7123077 A JP7123077 A JP 7123077A JP 7123077 A JP7123077 A JP 7123077A JP S545777 A JPS545777 A JP S545777A
Authority
JP
Japan
Prior art keywords
infrated
type gas
absorption type
alarming device
gas alarming
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
JP7123077A
Other languages
Japanese (ja)
Inventor
Yoshihiko Okuda
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 JP7123077A priority Critical patent/JPS545777A/en
Publication of JPS545777A publication Critical patent/JPS545777A/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 enable always stable operation to be obtained by so controlling the infrared radiation quantity of an infrared ray source that the quantity of receiving light of a photo detector becomes always constant.
JP7123077A 1977-06-15 1977-06-15 Infrated absorption type gas alarming device Pending JPS545777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7123077A JPS545777A (en) 1977-06-15 1977-06-15 Infrated absorption type gas alarming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7123077A JPS545777A (en) 1977-06-15 1977-06-15 Infrated absorption type gas alarming device

Publications (1)

Publication Number Publication Date
JPS545777A true JPS545777A (en) 1979-01-17

Family

ID=13454671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7123077A Pending JPS545777A (en) 1977-06-15 1977-06-15 Infrated absorption type gas alarming device

Country Status (1)

Country Link
JP (1) JPS545777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008513764A (en) * 2004-09-15 2008-05-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Radiation measurement apparatus, radiation control system, and radiation measurement method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008513764A (en) * 2004-09-15 2008-05-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Radiation measurement apparatus, radiation control system, and radiation measurement method

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