JPS64755B2 - - Google Patents

Info

Publication number
JPS64755B2
JPS64755B2 JP4582582A JP4582582A JPS64755B2 JP S64755 B2 JPS64755 B2 JP S64755B2 JP 4582582 A JP4582582 A JP 4582582A JP 4582582 A JP4582582 A JP 4582582A JP S64755 B2 JPS64755 B2 JP S64755B2
Authority
JP
Japan
Prior art keywords
circuit
output
comparator
light
diode
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.)
Expired
Application number
JP4582582A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58162843A (ja
Inventor
Sadataka Yuji
Hiroshi Pponma
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.)
Hochiki Corp
Original Assignee
Hochiki 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 Hochiki Corp filed Critical Hochiki Corp
Priority to JP4582582A priority Critical patent/JPS58162843A/ja
Publication of JPS58162843A publication Critical patent/JPS58162843A/ja
Publication of JPS64755B2 publication Critical patent/JPS64755B2/ja
Granted 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
    • G08B17/107—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 for detecting light-scattering due to smoke

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)
JP4582582A 1982-03-23 1982-03-23 光電式煙感知器 Granted JPS58162843A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4582582A JPS58162843A (ja) 1982-03-23 1982-03-23 光電式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4582582A JPS58162843A (ja) 1982-03-23 1982-03-23 光電式煙感知器

Publications (2)

Publication Number Publication Date
JPS58162843A JPS58162843A (ja) 1983-09-27
JPS64755B2 true JPS64755B2 (de) 1989-01-09

Family

ID=12730017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4582582A Granted JPS58162843A (ja) 1982-03-23 1982-03-23 光電式煙感知器

Country Status (1)

Country Link
JP (1) JPS58162843A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60230038A (ja) * 1984-04-27 1985-11-15 Hochiki Corp 光電式アナログ煙感知器の受光回路
JPS60187315A (ja) * 1984-03-06 1985-09-24 Mitsubishi Heavy Ind Ltd 集じん装置
JPS6157836A (ja) * 1984-08-29 1986-03-24 Hochiki Corp 光電式煙感知器
JPS61107093U (de) * 1984-12-15 1986-07-07
JPS61199195A (ja) * 1985-03-01 1986-09-03 ニツタン株式会社 多信号出力型火災感知器
JPS63107098U (de) * 1986-12-26 1988-07-11
EP0571843B1 (de) * 1992-05-25 1999-08-04 Nohmi Bosai Ltd. Feuerdetektor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041795B2 (ja) * 1977-12-15 1985-09-18 松下電工株式会社 光電式煙感知器
JPS592077B2 (ja) * 1978-12-18 1984-01-17 松下電器産業株式会社 煙感知器
JPS5624693A (en) * 1979-08-07 1981-03-09 Matsushita Electric Works Ltd Signal processor circuit for optical smoke sensor
JPS5736386A (ja) * 1980-08-12 1982-02-27 Nohmi Bosai Kogyo Co Ltd Kodenshikikemurikanchikinochikusekikairo

Also Published As

Publication number Publication date
JPS58162843A (ja) 1983-09-27

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