JPS57154049A - Oxygen sensor element - Google Patents

Oxygen sensor element

Info

Publication number
JPS57154049A
JPS57154049A JP56039907A JP3990781A JPS57154049A JP S57154049 A JPS57154049 A JP S57154049A JP 56039907 A JP56039907 A JP 56039907A JP 3990781 A JP3990781 A JP 3990781A JP S57154049 A JPS57154049 A JP S57154049A
Authority
JP
Japan
Prior art keywords
electrode
oxygen
sintered body
metal layer
highly accurately
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
JP56039907A
Other languages
Japanese (ja)
Other versions
JPH0121901B2 (en
Inventor
Kazuo Toshima
Yasuhiro Otsuka
Mari Okazaki
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 JP56039907A priority Critical patent/JPS57154049A/en
Publication of JPS57154049A publication Critical patent/JPS57154049A/en
Publication of JPH0121901B2 publication Critical patent/JPH0121901B2/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
    • G01N27/26—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

PURPOSE:To make it possible to measure the partial pressure of the oxygen in the gas to be tested from low concentration region to high concentration region continuously and highly accurately by providing two electrode layers of different thicknesses which are provided on both sides of an oxygen ion transmitting sintered body. CONSTITUTION:An electrode 2 comprising a thin metal layer is formed on one side of a disk shaped, solid state electrolyte sintered body 1. An electrode 3 whose thickness is thicker than that of the electrode 2 is formed on the other surface. Lead wires 4 and 5 are connected to the electrode layrs 2 and 3. The entire surface of the element is coated by a porous coating layer 6. Thus the oxygen sensor element is constituted. When a specified current is flowed to the electrode currents 2 and 3 from a power source 7 at the time of measurement, the amount of inflow of the oxygen is limited since the metal layer forming the electrode 3 is thick. When a constant voltage is applied, a threshold current is generated across the electrodes 2 and 3. By measuring the concentration of the oxygen by said threshold current value, the oxygen concentration characterized by the small dispersion in the values due to the applied voltage can be detected highly accurately.
JP56039907A 1981-03-19 1981-03-19 Oxygen sensor element Granted JPS57154049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56039907A JPS57154049A (en) 1981-03-19 1981-03-19 Oxygen sensor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56039907A JPS57154049A (en) 1981-03-19 1981-03-19 Oxygen sensor element

Publications (2)

Publication Number Publication Date
JPS57154049A true JPS57154049A (en) 1982-09-22
JPH0121901B2 JPH0121901B2 (en) 1989-04-24

Family

ID=12566019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56039907A Granted JPS57154049A (en) 1981-03-19 1981-03-19 Oxygen sensor element

Country Status (1)

Country Link
JP (1) JPS57154049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0830276B2 (en) * 1985-02-15 1996-03-27 ル エ−ル リクイツド ソシエテ アノニム プ−ル ル エチユド エ ル エクスプルワテシヨン デ プロセデ ジエオルジエ クロ−ド Solid electrolyte material, its manufacturing method and its electrochemical use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919838A (en) * 1972-06-13 1974-02-21
JPS5269690A (en) * 1975-12-05 1977-06-09 Westinghouse Electric Corp Partil pressure measuring apparatus for specified gages in sighted environments
JPS52119989A (en) * 1976-04-02 1977-10-07 Hitachi Ltd Air-fuel ratio sensor
JPS53116896A (en) * 1977-03-18 1978-10-12 Bosch Gmbh Robert Measuring sensor for oxygen concentration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919838A (en) * 1972-06-13 1974-02-21
JPS5269690A (en) * 1975-12-05 1977-06-09 Westinghouse Electric Corp Partil pressure measuring apparatus for specified gages in sighted environments
JPS52119989A (en) * 1976-04-02 1977-10-07 Hitachi Ltd Air-fuel ratio sensor
JPS53116896A (en) * 1977-03-18 1978-10-12 Bosch Gmbh Robert Measuring sensor for oxygen concentration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0830276B2 (en) * 1985-02-15 1996-03-27 ル エ−ル リクイツド ソシエテ アノニム プ−ル ル エチユド エ ル エクスプルワテシヨン デ プロセデ ジエオルジエ クロ−ド Solid electrolyte material, its manufacturing method and its electrochemical use

Also Published As

Publication number Publication date
JPH0121901B2 (en) 1989-04-24

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