JPS52478A - Smoke detecting system - Google Patents

Smoke detecting system

Info

Publication number
JPS52478A
JPS52478A JP7618175A JP7618175A JPS52478A JP S52478 A JPS52478 A JP S52478A JP 7618175 A JP7618175 A JP 7618175A JP 7618175 A JP7618175 A JP 7618175A JP S52478 A JPS52478 A JP S52478A
Authority
JP
Japan
Prior art keywords
detecting system
smoke detecting
smoke
lirhgt
cds
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
JP7618175A
Other languages
Japanese (ja)
Inventor
Shinzo Shioda
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7618175A priority Critical patent/JPS52478A/en
Publication of JPS52478A publication Critical patent/JPS52478A/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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity

Landscapes

  • Physics & Mathematics (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)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To provide a system which can detect smoke by flowing smoke into a casing equipped with a source of light and detecting small change of lirhgt quantity using a CDS.
JP7618175A 1975-06-21 1975-06-21 Smoke detecting system Pending JPS52478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7618175A JPS52478A (en) 1975-06-21 1975-06-21 Smoke detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7618175A JPS52478A (en) 1975-06-21 1975-06-21 Smoke detecting system

Publications (1)

Publication Number Publication Date
JPS52478A true JPS52478A (en) 1977-01-05

Family

ID=13597931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7618175A Pending JPS52478A (en) 1975-06-21 1975-06-21 Smoke detecting system

Country Status (1)

Country Link
JP (1) JPS52478A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6178393U (en) * 1984-10-29 1986-05-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6178393U (en) * 1984-10-29 1986-05-26

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