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JPS5227297A - Smoke sensor circuit - Google Patents

Smoke sensor circuit

Info

Publication number
JPS5227297A
JPS5227297A JP10330175A JP10330175A JPS5227297A JP S5227297 A JPS5227297 A JP S5227297A JP 10330175 A JP10330175 A JP 10330175A JP 10330175 A JP10330175 A JP 10330175A JP S5227297 A JPS5227297 A JP S5227297A
Authority
JP
Japan
Prior art keywords
smoke sensor
sensor circuit
prevention
noise
changing
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
JP10330175A
Other languages
Japanese (ja)
Inventor
Kensaburo Tanemura
Yoshiharu Suzuki
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 JP10330175A priority Critical patent/JPS5227297A/en
Publication of JPS5227297A publication Critical patent/JPS5227297A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE: Prevention of the noise of smoke sensor by giving inverse time limit characteristic by changing the oscillation frequency or amplitude according to the sensor output.
COPYRIGHT: (C)1977,JPO&Japio
JP10330175A 1975-08-25 1975-08-25 Smoke sensor circuit Pending JPS5227297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10330175A JPS5227297A (en) 1975-08-25 1975-08-25 Smoke sensor circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10330175A JPS5227297A (en) 1975-08-25 1975-08-25 Smoke sensor circuit

Publications (1)

Publication Number Publication Date
JPS5227297A true JPS5227297A (en) 1977-03-01

Family

ID=14350412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10330175A Pending JPS5227297A (en) 1975-08-25 1975-08-25 Smoke sensor circuit

Country Status (1)

Country Link
JP (1) JPS5227297A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597691A (en) * 1979-01-18 1980-07-25 Nippon Electric Co Circuit for dispatching defect information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597691A (en) * 1979-01-18 1980-07-25 Nippon Electric Co Circuit for dispatching defect information

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