JPS52112363A - Smoke sensor - Google Patents

Smoke sensor

Info

Publication number
JPS52112363A
JPS52112363A JP2959776A JP2959776A JPS52112363A JP S52112363 A JPS52112363 A JP S52112363A JP 2959776 A JP2959776 A JP 2959776A JP 2959776 A JP2959776 A JP 2959776A JP S52112363 A JPS52112363 A JP S52112363A
Authority
JP
Japan
Prior art keywords
smoke sensor
fitting
agc
troubles
eliminate
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
JP2959776A
Other languages
Japanese (ja)
Inventor
Sumio Kondo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2959776A priority Critical patent/JPS52112363A/en
Publication of JPS52112363A publication Critical patent/JPS52112363A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To eliminate the troubles on installation and maintenance by fitting an amplifying circuit having a AGC function at the receiving part of a light signal and fitting an integrated circuit at the AGC feedback passage.
JP2959776A 1976-03-18 1976-03-18 Smoke sensor Pending JPS52112363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2959776A JPS52112363A (en) 1976-03-18 1976-03-18 Smoke sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2959776A JPS52112363A (en) 1976-03-18 1976-03-18 Smoke sensor

Publications (1)

Publication Number Publication Date
JPS52112363A true JPS52112363A (en) 1977-09-20

Family

ID=12280474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2959776A Pending JPS52112363A (en) 1976-03-18 1976-03-18 Smoke sensor

Country Status (1)

Country Link
JP (1) JPS52112363A (en)

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