JPS5769239A - Sensing element for combustible gas - Google Patents

Sensing element for combustible gas

Info

Publication number
JPS5769239A
JPS5769239A JP14619680A JP14619680A JPS5769239A JP S5769239 A JPS5769239 A JP S5769239A JP 14619680 A JP14619680 A JP 14619680A JP 14619680 A JP14619680 A JP 14619680A JP S5769239 A JPS5769239 A JP S5769239A
Authority
JP
Japan
Prior art keywords
gas
coil
sensing body
constitution
noble metal
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
JP14619680A
Other languages
Japanese (ja)
Other versions
JPS6152935B2 (en
Inventor
Takayuki Eguchi
Toshiaki Hashiguchi
Yoshihiko Nakatani
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14619680A priority Critical patent/JPS5769239A/en
Publication of JPS5769239A publication Critical patent/JPS5769239A/en
Publication of JPS6152935B2 publication Critical patent/JPS6152935B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Emergency Alarm Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE:To obtain gas selectivity by imparting a noble metal catalyst to a coil shaped heater provided around a gas sensing body, and reducing sensitivity against gas having low igniting temperature. CONSTITUTION:A pair of platinum electrodes 2 which sense resistance are fixed to both ends of a sensing body 1 of a sintered type SnO2 semiconductor sensor by using conductive paste 3. Around the sensing body 1, the heater 4, wherein the mechanical strength of the coil is reinforced and the gap between the wires is insulated, is provided. Said coil of the metallic wire is coated by the mixture comprising inorganic cement, whose main component is Al2O3 as a support, and 5wt% of Pt powder as the noble metal catalyst. In this constitution of the gas sensing element, the sensitivity against alcohol is reduced, and the erroneous reports regarding alcohol can be decreased.
JP14619680A 1980-10-17 1980-10-17 Sensing element for combustible gas Granted JPS5769239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14619680A JPS5769239A (en) 1980-10-17 1980-10-17 Sensing element for combustible gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14619680A JPS5769239A (en) 1980-10-17 1980-10-17 Sensing element for combustible gas

Publications (2)

Publication Number Publication Date
JPS5769239A true JPS5769239A (en) 1982-04-27
JPS6152935B2 JPS6152935B2 (en) 1986-11-15

Family

ID=15402294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14619680A Granted JPS5769239A (en) 1980-10-17 1980-10-17 Sensing element for combustible gas

Country Status (1)

Country Link
JP (1) JPS5769239A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004093201A (en) * 2002-08-29 2004-03-25 Honda Motor Co Ltd Gas sensor and gas detecting method
JP2010008248A (en) * 2008-06-27 2010-01-14 Honda Motor Co Ltd Gas sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004093201A (en) * 2002-08-29 2004-03-25 Honda Motor Co Ltd Gas sensor and gas detecting method
JP2010008248A (en) * 2008-06-27 2010-01-14 Honda Motor Co Ltd Gas sensor

Also Published As

Publication number Publication date
JPS6152935B2 (en) 1986-11-15

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