JPS5457897A - Alarm equipment for gas leak - Google Patents

Alarm equipment for gas leak

Info

Publication number
JPS5457897A
JPS5457897A JP12483777A JP12483777A JPS5457897A JP S5457897 A JPS5457897 A JP S5457897A JP 12483777 A JP12483777 A JP 12483777A JP 12483777 A JP12483777 A JP 12483777A JP S5457897 A JPS5457897 A JP S5457897A
Authority
JP
Japan
Prior art keywords
heater
temperature
gas
detector
series
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
JP12483777A
Other languages
Japanese (ja)
Inventor
Shigeo Akiyama
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 JP12483777A priority Critical patent/JPS5457897A/en
Publication of JPS5457897A publication Critical patent/JPS5457897A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

PURPOSE: To simplify a circuit, and to make an answer speed fast by connecting a gas detector and element heater in series and by using the heater as the load resistance of the gas detector.
CONSTITUTION: Gas detector 1 and heater 2 of detector 1 are connected in series between terminals A and C, and terminal B is provided between element 1 and heater 2. When a very samll amount of inflammable gas is adsorbed by element 1, the resistance value of element 1 decreases, a current flowing to heater 2 increases, and heater 2 rises in temperature, so that the temperature of element 1 will rise. In this state, if the inflammable gas disappears, the desorption of the inflammable gas is done quickly since the temperature of element is high, so that the element resistance value will be equal to the previous value. The electrical resistance variation can be detected by extracting an output from terminal B and announced by a buzzer, etc
COPYRIGHT: (C)1979,JPO&Japio
JP12483777A 1977-10-17 1977-10-17 Alarm equipment for gas leak Pending JPS5457897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12483777A JPS5457897A (en) 1977-10-17 1977-10-17 Alarm equipment for gas leak

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12483777A JPS5457897A (en) 1977-10-17 1977-10-17 Alarm equipment for gas leak

Publications (1)

Publication Number Publication Date
JPS5457897A true JPS5457897A (en) 1979-05-10

Family

ID=14895308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12483777A Pending JPS5457897A (en) 1977-10-17 1977-10-17 Alarm equipment for gas leak

Country Status (1)

Country Link
JP (1) JPS5457897A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138995U (en) * 1983-03-07 1984-09-17 松下電器産業株式会社 Gas leak alarm control device
CN106781299A (en) * 2017-01-24 2017-05-31 深圳双创科技发展有限公司 A kind of robot warning system and method for being applied to city
CN106781298A (en) * 2017-01-24 2017-05-31 深圳双创科技发展有限公司 Natural gas leaking management system and method that a kind of robot is participated in

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138995U (en) * 1983-03-07 1984-09-17 松下電器産業株式会社 Gas leak alarm control device
CN106781299A (en) * 2017-01-24 2017-05-31 深圳双创科技发展有限公司 A kind of robot warning system and method for being applied to city
CN106781298A (en) * 2017-01-24 2017-05-31 深圳双创科技发展有限公司 Natural gas leaking management system and method that a kind of robot is participated in

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