JPS5596443A - Gas detector - Google Patents

Gas detector

Info

Publication number
JPS5596443A
JPS5596443A JP434879A JP434879A JPS5596443A JP S5596443 A JPS5596443 A JP S5596443A JP 434879 A JP434879 A JP 434879A JP 434879 A JP434879 A JP 434879A JP S5596443 A JPS5596443 A JP S5596443A
Authority
JP
Japan
Prior art keywords
gas
methane
carrier
temperature compensating
town
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
JP434879A
Other languages
Japanese (ja)
Other versions
JPS5928862B2 (en
Inventor
Kazunari Kubota
Katsue Takayama
Isamu Odaka
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP434879A priority Critical patent/JPS5928862B2/en
Publication of JPS5596443A publication Critical patent/JPS5596443A/en
Publication of JPS5928862B2 publication Critical patent/JPS5928862B2/en
Expired legal-status Critical Current

Links

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To enable to use a gas detector comprising a gas detection element and a temperature compensating element, for an alarm which can be used for both liquefied propane gas and town gas, particularly town gas whose main constituent is liquefied natrual gas, by providing a prescribed element as the temperature compensating element.
CONSTITUTION: A gas detector comprises a bridge circuit B including fixed resistors R1, R2, a gas detection element M and a temperature compensating element K, a power source E for the circuit B and a load V (alarm) coupled to the output side of the circuit B. The element K has a catalyst 6, which is iron oxide or a mixture of iron oxide with MnO2 and is held on a carrier 5 bonded to a temperature compensation wire 4 so that contact combustion is not caused on methane but caused on hydrocarbon gas except for methane. The element M has a carrier 2 bonded on a platinum wire 1 and a palladium catalyst 3 held on the carrier 2. The elements K, M are heated at about 350°C. This results in raising the sensitivity to methane and enabling the use of the gas detector for both liquefied propane gas and town gas.
COPYRIGHT: (C)1980,JPO&Japio
JP434879A 1979-01-17 1979-01-17 gas detection device Expired JPS5928862B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP434879A JPS5928862B2 (en) 1979-01-17 1979-01-17 gas detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP434879A JPS5928862B2 (en) 1979-01-17 1979-01-17 gas detection device

Publications (2)

Publication Number Publication Date
JPS5596443A true JPS5596443A (en) 1980-07-22
JPS5928862B2 JPS5928862B2 (en) 1984-07-16

Family

ID=11581908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP434879A Expired JPS5928862B2 (en) 1979-01-17 1979-01-17 gas detection device

Country Status (1)

Country Link
JP (1) JPS5928862B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990054775A (en) * 1997-12-26 1999-07-15 조희재 Manufacturing Method of Thick Film Printed Gas Sensor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0181756U (en) * 1987-11-19 1989-05-31
JPH01134752A (en) * 1987-11-20 1989-05-26 Hitachi Ltd Device for detecting number of rotations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990054775A (en) * 1997-12-26 1999-07-15 조희재 Manufacturing Method of Thick Film Printed Gas Sensor

Also Published As

Publication number Publication date
JPS5928862B2 (en) 1984-07-16

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