JPS51145382A - Photo-electric smoke detector with action testing function - Google Patents

Photo-electric smoke detector with action testing function

Info

Publication number
JPS51145382A
JPS51145382A JP6942375A JP6942375A JPS51145382A JP S51145382 A JPS51145382 A JP S51145382A JP 6942375 A JP6942375 A JP 6942375A JP 6942375 A JP6942375 A JP 6942375A JP S51145382 A JPS51145382 A JP S51145382A
Authority
JP
Japan
Prior art keywords
photo
smoke detector
testing function
electric smoke
action testing
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
JP6942375A
Other languages
Japanese (ja)
Inventor
Tetsuo Kimura
Akira Yokota
Takashi Suzuki
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.)
Nittan Co Ltd
Original Assignee
Nittan Co 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Priority to JP6942375A priority Critical patent/JPS51145382A/en
Publication of JPS51145382A publication Critical patent/JPS51145382A/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
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (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:Adjusting the sensibility of all the circuit in accorance with unevenness of the output in a firing drive circuit.
JP6942375A 1975-06-09 1975-06-09 Photo-electric smoke detector with action testing function Pending JPS51145382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6942375A JPS51145382A (en) 1975-06-09 1975-06-09 Photo-electric smoke detector with action testing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6942375A JPS51145382A (en) 1975-06-09 1975-06-09 Photo-electric smoke detector with action testing function

Publications (1)

Publication Number Publication Date
JPS51145382A true JPS51145382A (en) 1976-12-14

Family

ID=13402183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6942375A Pending JPS51145382A (en) 1975-06-09 1975-06-09 Photo-electric smoke detector with action testing function

Country Status (1)

Country Link
JP (1) JPS51145382A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507583A (en) * 1973-05-17 1975-01-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507583A (en) * 1973-05-17 1975-01-25

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