JPS5776450A - Oxygen sensor - Google Patents

Oxygen sensor

Info

Publication number
JPS5776450A
JPS5776450A JP55151734A JP15173480A JPS5776450A JP S5776450 A JPS5776450 A JP S5776450A JP 55151734 A JP55151734 A JP 55151734A JP 15173480 A JP15173480 A JP 15173480A JP S5776450 A JPS5776450 A JP S5776450A
Authority
JP
Japan
Prior art keywords
oxygen
electrode
electrodes
coating layer
component selected
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
JP55151734A
Other languages
Japanese (ja)
Inventor
Yasuhiro Otsuka
Hiroshi Shinohara
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 JP55151734A priority Critical patent/JPS5776450A/en
Publication of JPS5776450A publication Critical patent/JPS5776450A/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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4075—Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts

Abstract

PURPOSE:To detect oxygen concns. from a low region up to a high region by providing a porous inorg. coating layer on the cathode surface of a threshold electric current type oxygen sensor. CONSTITUTION:Metallic electrodes 2, 3 are provided by a sputtering method on both surfaces of a solid electrolyte sintered body 1 formed in a disc shape. Lead wires 6, 6 for the purpose of voltage application and output detection are provided on the electrodes 2, 3. A porous inorg. coating layer 5 for limiting oxygen inflow is provided thickly or densely on the surface of the electrode (cathode) 2 on the oxygen inflow side and a thin porous inorg. electrode protecting layer 5 is provided on the surface of the electrode (anode) 3 on the oxygen outflow side. The electrodes 2, 3 formed to the sensor element consist of a mixture of a component selected from platinum and gold having heat resistance, oxidation resistance and good electric conductivity, and a component selected from silver, palladium and rhodium making compounds unstable with oxygen.
JP55151734A 1980-10-29 1980-10-29 Oxygen sensor Pending JPS5776450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55151734A JPS5776450A (en) 1980-10-29 1980-10-29 Oxygen sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55151734A JPS5776450A (en) 1980-10-29 1980-10-29 Oxygen sensor

Publications (1)

Publication Number Publication Date
JPS5776450A true JPS5776450A (en) 1982-05-13

Family

ID=15525118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55151734A Pending JPS5776450A (en) 1980-10-29 1980-10-29 Oxygen sensor

Country Status (1)

Country Link
JP (1) JPS5776450A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60108566A (en) * 1983-11-15 1985-06-14 Nippon Denso Co Ltd Ignition-timing controller for internal-combustion engine
DE3526486A1 (en) * 1984-07-24 1986-01-30 Toyoda Chuo Kenkyusho Kk OXYGEN SENSOR AND METHOD FOR PRODUCING THE SAME
US4776943A (en) * 1984-02-20 1988-10-11 Nissan Motor Co., Ltd. Device for detecting air-fuel ratio of mixture over wide range from below to above stoichiometric ratio
KR19980067018A (en) * 1997-01-30 1998-10-15 이형도 Oxygen sensor for detecting degradation of three-way exhaust gas purification catalyst for automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60108566A (en) * 1983-11-15 1985-06-14 Nippon Denso Co Ltd Ignition-timing controller for internal-combustion engine
US4776943A (en) * 1984-02-20 1988-10-11 Nissan Motor Co., Ltd. Device for detecting air-fuel ratio of mixture over wide range from below to above stoichiometric ratio
DE3526486A1 (en) * 1984-07-24 1986-01-30 Toyoda Chuo Kenkyusho Kk OXYGEN SENSOR AND METHOD FOR PRODUCING THE SAME
KR19980067018A (en) * 1997-01-30 1998-10-15 이형도 Oxygen sensor for detecting degradation of three-way exhaust gas purification catalyst for automobile

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