JPS56168544A - Resistor type gas sensor - Google Patents

Resistor type gas sensor

Info

Publication number
JPS56168544A
JPS56168544A JP7362980A JP7362980A JPS56168544A JP S56168544 A JPS56168544 A JP S56168544A JP 7362980 A JP7362980 A JP 7362980A JP 7362980 A JP7362980 A JP 7362980A JP S56168544 A JPS56168544 A JP S56168544A
Authority
JP
Japan
Prior art keywords
layer
arm
coating layer
ceramic
gas sensor
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
JP7362980A
Other languages
Japanese (ja)
Inventor
Mari Okazaki
Hiroshi Shinohara
Yasuhiro Otsuka
Hideo Kamiya
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP7362980A priority Critical patent/JPS56168544A/en
Publication of JPS56168544A publication Critical patent/JPS56168544A/en
Pending 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
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas

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

Abstract

PURPOSE:To prevent the drifting variation in output by equalizing the thermal capacities of both arms for a reference and sensing. CONSTITUTION:A substrate 1 from which a pair of arms 1a and 1b are extended comprises a heat resistant material whose ceramic thermal expansion coefficient is low. Along the surfaces of the arm 1a and 1b of the substrate 1, linear resistors 2a and 2b are formed, and a coating layer 7 comprising ceramic is formed. The lower layer of the coating layer 7 is a fine layer 7a with the thickness of 5-15mu comprising fine ceramic grains, and the upper layer thereof is a coarse layer 7b with the thickness of 10-200mu comprising coarse ceramic grains. A catalyst layer 4a is formed on the coating layer 7 of the arm 1a. A heat compensating layer 4b having the same thermal capacity as that of the catalyst layer 4a is formed on the coating layer 7 of the arm 1b. The arm 1a is used for sensing and the arm 1b is used for a reference.
JP7362980A 1980-05-30 1980-05-30 Resistor type gas sensor Pending JPS56168544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7362980A JPS56168544A (en) 1980-05-30 1980-05-30 Resistor type gas sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7362980A JPS56168544A (en) 1980-05-30 1980-05-30 Resistor type gas sensor

Publications (1)

Publication Number Publication Date
JPS56168544A true JPS56168544A (en) 1981-12-24

Family

ID=13523791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7362980A Pending JPS56168544A (en) 1980-05-30 1980-05-30 Resistor type gas sensor

Country Status (1)

Country Link
JP (1) JPS56168544A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924239A (en) * 1982-07-30 1984-02-07 Kinmon Seisakusho:Kk Apparatus for detecting gas
JPS607353A (en) * 1983-06-27 1985-01-16 Toshiba Corp Gas sensitive element
FR2577320A1 (en) * 1985-02-09 1986-08-14 Draegerwerk Ag GAS DETECTOR WITH SEVERAL DETECTOR ELEMENTS.
EP0334614A2 (en) * 1988-03-21 1989-09-27 Sieger Limited Catalytic gas detector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924239A (en) * 1982-07-30 1984-02-07 Kinmon Seisakusho:Kk Apparatus for detecting gas
JPH0242193B2 (en) * 1982-07-30 1990-09-20
JPS607353A (en) * 1983-06-27 1985-01-16 Toshiba Corp Gas sensitive element
JPH0315976B2 (en) * 1983-06-27 1991-03-04 Tokyo Shibaura Electric Co
FR2577320A1 (en) * 1985-02-09 1986-08-14 Draegerwerk Ag GAS DETECTOR WITH SEVERAL DETECTOR ELEMENTS.
EP0334614A2 (en) * 1988-03-21 1989-09-27 Sieger Limited Catalytic gas detector

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