JPS57165757A - Measuring method for density of oxygen in gas - Google Patents

Measuring method for density of oxygen in gas

Info

Publication number
JPS57165757A
JPS57165757A JP56050399A JP5039981A JPS57165757A JP S57165757 A JPS57165757 A JP S57165757A JP 56050399 A JP56050399 A JP 56050399A JP 5039981 A JP5039981 A JP 5039981A JP S57165757 A JPS57165757 A JP S57165757A
Authority
JP
Japan
Prior art keywords
gas
oxygen
measured
density
zirconia element
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
JP56050399A
Other languages
Japanese (ja)
Inventor
Kenji Kunihara
Shinichi Ochiwa
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Corporate Research and Development 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 Fuji Electric Corporate Research and Development Ltd filed Critical Fuji Electric Corporate Research and Development Ltd
Priority to JP56050399A priority Critical patent/JPS57165757A/en
Priority to EP82102837A priority patent/EP0062330A1/en
Publication of JPS57165757A publication Critical patent/JPS57165757A/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

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 remove measurement errors due to coexistent SO2 and thereby to improve the precision of measurement, by applying beforehand specified heat treatment to the electrode part of a zirconia element on the side of a gas to be measured, when the density of oxygen in the gas is measured at a comparatively low temperature by using the zirconia element. CONSTITUTION:An oxygen sensor is manufactured by baking porous platinum electrodes 2 and 3 on both inside and outside surfaces of a zirconia element 1 near the tip pat thereof, and the density of oxygen in a gas is measured at a temperature of 800 deg.C or below. On the occasion, prior to actual measurement, the electrode 3 on the side of the gas to be measured is held in an ambient gas containing SO2 or SOx(SO2+SO3) of 200-5,000ppm and oxygen of 1-20% and is heated for several tens or hundreds hours at a temperature of 550-850 deg.C, or preferably, of 600-800 deg.C. It is preferable that this heat treatment is conducted at the final stage of a process of manufacturing the zirconia element. However, it is also possible to adopt a method of conducting the treatment in an actual exhaust gas containing SOx.
JP56050399A 1981-04-03 1981-04-03 Measuring method for density of oxygen in gas Pending JPS57165757A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56050399A JPS57165757A (en) 1981-04-03 1981-04-03 Measuring method for density of oxygen in gas
EP82102837A EP0062330A1 (en) 1981-04-03 1982-04-02 Oxygen sensor with a zirconium dioxide element, method of producing the same and subsequent treatment, use of the sensor for measuring in atmospheres containing sulphur oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56050399A JPS57165757A (en) 1981-04-03 1981-04-03 Measuring method for density of oxygen in gas

Publications (1)

Publication Number Publication Date
JPS57165757A true JPS57165757A (en) 1982-10-12

Family

ID=12857790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56050399A Pending JPS57165757A (en) 1981-04-03 1981-04-03 Measuring method for density of oxygen in gas

Country Status (1)

Country Link
JP (1) JPS57165757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01302155A (en) * 1988-05-31 1989-12-06 Mitsubishi Motors Corp Oxygen sensor tester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01302155A (en) * 1988-05-31 1989-12-06 Mitsubishi Motors Corp Oxygen sensor tester

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