JPS53105197A - Signal processing circuit for fire senfor - Google Patents

Signal processing circuit for fire senfor

Info

Publication number
JPS53105197A
JPS53105197A JP1999677A JP1999677A JPS53105197A JP S53105197 A JPS53105197 A JP S53105197A JP 1999677 A JP1999677 A JP 1999677A JP 1999677 A JP1999677 A JP 1999677A JP S53105197 A JPS53105197 A JP S53105197A
Authority
JP
Japan
Prior art keywords
senfor
fire
signal processing
processing circuit
time aging
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
JP1999677A
Other languages
Japanese (ja)
Inventor
Kuniharu Tatezuki
Toru Kahara
Takeshi Nakano
Kazunari Morisue
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP1999677A priority Critical patent/JPS53105197A/en
Publication of JPS53105197A publication Critical patent/JPS53105197A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To eliminate the malfunction due to time aging, by detecting the detection level due to time aging of the sensor and developing the trouble signal telling the fault of unit when the detected level reaches a given level.
JP1999677A 1977-02-24 1977-02-24 Signal processing circuit for fire senfor Pending JPS53105197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1999677A JPS53105197A (en) 1977-02-24 1977-02-24 Signal processing circuit for fire senfor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1999677A JPS53105197A (en) 1977-02-24 1977-02-24 Signal processing circuit for fire senfor

Publications (1)

Publication Number Publication Date
JPS53105197A true JPS53105197A (en) 1978-09-13

Family

ID=12014761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1999677A Pending JPS53105197A (en) 1977-02-24 1977-02-24 Signal processing circuit for fire senfor

Country Status (1)

Country Link
JP (1) JPS53105197A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118999A (en) * 1983-11-30 1985-06-26 松下電工株式会社 Intelligence type smoke sensor
JPH0285994A (en) * 1989-08-01 1990-03-27 Nohmi Bosai Ltd Function inspecting device for photoelectric smoke sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922860U (en) * 1972-05-29 1974-02-26
JPS5148297A (en) * 1974-10-22 1976-04-24 Nippon Denso Co Kemurinadono kanchisochi

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922860U (en) * 1972-05-29 1974-02-26
JPS5148297A (en) * 1974-10-22 1976-04-24 Nippon Denso Co Kemurinadono kanchisochi

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118999A (en) * 1983-11-30 1985-06-26 松下電工株式会社 Intelligence type smoke sensor
JPH057760B2 (en) * 1983-11-30 1993-01-29 Matsushita Electric Works Ltd
JPH0285994A (en) * 1989-08-01 1990-03-27 Nohmi Bosai Ltd Function inspecting device for photoelectric smoke sensor
JPH0546000B2 (en) * 1989-08-01 1993-07-12 Nohmi Bosai Ltd

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees