JPS5651656A - Detecting element for combustible gas - Google Patents

Detecting element for combustible gas

Info

Publication number
JPS5651656A
JPS5651656A JP12825179A JP12825179A JPS5651656A JP S5651656 A JPS5651656 A JP S5651656A JP 12825179 A JP12825179 A JP 12825179A JP 12825179 A JP12825179 A JP 12825179A JP S5651656 A JPS5651656 A JP S5651656A
Authority
JP
Japan
Prior art keywords
resistor
gas
platinum wire
oxide coating
moreover
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
JP12825179A
Other languages
Japanese (ja)
Inventor
Takashi Matsuzawa
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.)
Nemoto and Co Ltd
Original Assignee
Nemoto and 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 Nemoto and Co Ltd filed Critical Nemoto and Co Ltd
Priority to JP12825179A priority Critical patent/JPS5651656A/en
Publication of JPS5651656A publication Critical patent/JPS5651656A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To improve the secular stability and gas response characteristic, by laminating the resistor made of platinum wire, oxide coating and oxidation catalyst on the support electrode successively.
CONSTITUTION: After 5W25μm extremely fine platinum wire is fixed on the support electrode as resistor, ≤5μm oxide coating such as Al2O3, TiO2, SnO2 and ZnO2 is provided and moreover ≤5μm thickness of oxidizing catalyst such as Pt, Pd, Ru, NiO and CoO is stuck to said coating by the method of vapor deposition or plating. Hereby, the heat capacity of gas detection part is made extremely small and time necessary for stabilizing the temperature of the resistor at the time of applying voltage to the resistor is made within 5W10msec. Also, the gas response characteristic is improved and the output of gas sensitivity is saturated within 10W100msec. Moreover, the platinum wire is protected by the oxide coating and it is stable even if exposed in a high concentration gas and then, the secular stability is improved.
COPYRIGHT: (C)1981,JPO&Japio
JP12825179A 1979-10-04 1979-10-04 Detecting element for combustible gas Pending JPS5651656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12825179A JPS5651656A (en) 1979-10-04 1979-10-04 Detecting element for combustible gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12825179A JPS5651656A (en) 1979-10-04 1979-10-04 Detecting element for combustible gas

Publications (1)

Publication Number Publication Date
JPS5651656A true JPS5651656A (en) 1981-05-09

Family

ID=14980226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12825179A Pending JPS5651656A (en) 1979-10-04 1979-10-04 Detecting element for combustible gas

Country Status (1)

Country Link
JP (1) JPS5651656A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509034A (en) * 1983-03-22 1985-04-02 New Cosmos Electric Col, Ltd. Gas sensor
US4574264A (en) * 1982-11-17 1986-03-04 Kabushiki Kaisha Toyota Chuo Kenkyusho Thin film oxygen sensor with microheater
JPS63122259U (en) * 1987-02-03 1988-08-09

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574264A (en) * 1982-11-17 1986-03-04 Kabushiki Kaisha Toyota Chuo Kenkyusho Thin film oxygen sensor with microheater
US4509034A (en) * 1983-03-22 1985-04-02 New Cosmos Electric Col, Ltd. Gas sensor
JPS63122259U (en) * 1987-02-03 1988-08-09
JPH0447658Y2 (en) * 1987-02-03 1992-11-10

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