JPH0546000B2 - - Google Patents

Info

Publication number
JPH0546000B2
JPH0546000B2 JP1199986A JP19998689A JPH0546000B2 JP H0546000 B2 JPH0546000 B2 JP H0546000B2 JP 1199986 A JP1199986 A JP 1199986A JP 19998689 A JP19998689 A JP 19998689A JP H0546000 B2 JPH0546000 B2 JP H0546000B2
Authority
JP
Japan
Prior art keywords
light
circuit
signal
smoke detection
emitting element
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 - Lifetime
Application number
JP1199986A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0285994A (ja
Inventor
Shunichi Morita
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.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai 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 Nohmi Bosai Ltd filed Critical Nohmi Bosai Ltd
Priority to JP19998689A priority Critical patent/JPH0285994A/ja
Publication of JPH0285994A publication Critical patent/JPH0285994A/ja
Publication of JPH0546000B2 publication Critical patent/JPH0546000B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP19998689A 1989-08-01 1989-08-01 光電式煙感知器の機能検査装置 Granted JPH0285994A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19998689A JPH0285994A (ja) 1989-08-01 1989-08-01 光電式煙感知器の機能検査装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19998689A JPH0285994A (ja) 1989-08-01 1989-08-01 光電式煙感知器の機能検査装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP58061023A Division JPS59187246A (ja) 1983-04-08 1983-04-08 光電式煙感知器の機能検査装置

Publications (2)

Publication Number Publication Date
JPH0285994A JPH0285994A (ja) 1990-03-27
JPH0546000B2 true JPH0546000B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-07-12

Family

ID=16416889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19998689A Granted JPH0285994A (ja) 1989-08-01 1989-08-01 光電式煙感知器の機能検査装置

Country Status (1)

Country Link
JP (1) JPH0285994A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52131499A (en) * 1976-04-27 1977-11-04 Matsushita Electric Works Ltd Equipment abnormality detection system for photo-electric smoke sensor
JPS533880A (en) * 1976-07-01 1978-01-13 Matsushita Electric Works Ltd Sensitivity checking method for scattered light type smoke detector
JPS53105197A (en) * 1977-02-24 1978-09-13 Matsushita Electric Works Ltd Signal processing circuit for fire senfor
JPS5436712U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1977-08-19 1979-03-10
JPS562537A (en) * 1979-06-20 1981-01-12 Matsushita Electric Ind Co Ltd Smoke detector
JPS5619439A (en) * 1979-07-26 1981-02-24 Matsushita Electric Ind Co Ltd Photoelectric smoke detector
JPH0244385A (ja) * 1988-08-05 1990-02-14 Toshiba Corp 温度制御装置
JPH02153498A (ja) * 1989-08-01 1990-06-13 Nohmi Bosai Ltd 光電式煙感知器の機能検査装置

Also Published As

Publication number Publication date
JPH0285994A (ja) 1990-03-27

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