JPS58162843A - 光電式煙感知器 - Google Patents

光電式煙感知器

Info

Publication number
JPS58162843A
JPS58162843A JP4582582A JP4582582A JPS58162843A JP S58162843 A JPS58162843 A JP S58162843A JP 4582582 A JP4582582 A JP 4582582A JP 4582582 A JP4582582 A JP 4582582A JP S58162843 A JPS58162843 A JP S58162843A
Authority
JP
Japan
Prior art keywords
circuit
output
diode
light
comparator
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.)
Granted
Application number
JP4582582A
Other languages
English (en)
Japanese (ja)
Other versions
JPS64755B2 (en]
Inventor
Sadataka Yuji
定隆 湯地
Hiroshi Honma
博 本間
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 true JPS58162843A (ja) 1983-09-27
JPS64755B2 JPS64755B2 (en]) 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 (en])

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187315A (ja) * 1984-03-06 1985-09-24 Mitsubishi Heavy Ind Ltd 集じん装置
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
JPS6157836A (ja) * 1984-08-29 1986-03-24 Hochiki Corp 光電式煙感知器
JPS61107093U (en]) * 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 (en]) * 1986-12-26 1988-07-11
US5670948A (en) * 1992-05-25 1997-09-23 Nohmi Bosai Ltd. Fire detector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483493A (en) * 1977-12-15 1979-07-03 Matsushita Electric Works Ltd Photoelectric type smoke detector
JPS5582396A (en) * 1978-12-18 1980-06-21 Matsushita Electric Ind Co Ltd Smoke sensor
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483493A (en) * 1977-12-15 1979-07-03 Matsushita Electric Works Ltd Photoelectric type smoke detector
JPS5582396A (en) * 1978-12-18 1980-06-21 Matsushita Electric Ind Co Ltd Smoke sensor
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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187315A (ja) * 1984-03-06 1985-09-24 Mitsubishi Heavy Ind Ltd 集じん装置
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
JPS6157836A (ja) * 1984-08-29 1986-03-24 Hochiki Corp 光電式煙感知器
JPS61107093U (en]) * 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 (en]) * 1986-12-26 1988-07-11
US5670948A (en) * 1992-05-25 1997-09-23 Nohmi Bosai Ltd. Fire detector
US5872517A (en) * 1992-05-25 1999-02-16 Nohmi Bosai Ltd. Fire detector

Also Published As

Publication number Publication date
JPS64755B2 (en]) 1989-01-09

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