JPS5746154A - Detecting method for concentration of oxygen - Google Patents

Detecting method for concentration of oxygen

Info

Publication number
JPS5746154A
JPS5746154A JP55122294A JP12229480A JPS5746154A JP S5746154 A JPS5746154 A JP S5746154A JP 55122294 A JP55122294 A JP 55122294A JP 12229480 A JP12229480 A JP 12229480A JP S5746154 A JPS5746154 A JP S5746154A
Authority
JP
Japan
Prior art keywords
medium
electrode
function
ceramic vessel
housing
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
JP55122294A
Other languages
Japanese (ja)
Inventor
Yoshiki Nakajo
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 JP55122294A priority Critical patent/JPS5746154A/en
Publication of JPS5746154A publication Critical patent/JPS5746154A/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
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors

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)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

PURPOSE:To enable detection of O2 concentration in a wide range with excellent accuracy even at a low temperature by putting a proton-containing medium in a porous ceramic vessel and by providing in the medium an electrode to which a compound, such as metallized prophyrin, having the function of an electron transfer catalyst is attached and a reference electrode. CONSTITUTION:The functional electrode 5 to which a catalyst 4 prepared by metallizing tetraaminophenyl porphyrin or the like with FeCl2, CoCl2 or the like and having the function of an electron transfer catalyst is attached is made. The medium 2 containing proton such as polyacrylic amide is put in the porous ceramic vessel 1, while the electrode 5 and the reference electrode 3 are put in the medium 2. This ceramic vessel 1 is covered with a metallic cover 17 having a plurality of holes 20 and fixed to a housing 11. Next, the housing 11 is fixed to a conduit 18 for exhaust gas (an arrow 19 indicates the flow of gas) with a thread groove part 14. O2 dispersed in the medium 2 is reduced with contact by impressing voltage on the electrode 5 and the current generated in the process of reducing reaction is measured. The current is generated as a function of the density of O2. Thus the device is applied to an air-fuel-ratio sensor and the like having high durability even against high temperature and high accuracy.
JP55122294A 1980-09-05 1980-09-05 Detecting method for concentration of oxygen Pending JPS5746154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55122294A JPS5746154A (en) 1980-09-05 1980-09-05 Detecting method for concentration of oxygen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55122294A JPS5746154A (en) 1980-09-05 1980-09-05 Detecting method for concentration of oxygen

Publications (1)

Publication Number Publication Date
JPS5746154A true JPS5746154A (en) 1982-03-16

Family

ID=14832389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55122294A Pending JPS5746154A (en) 1980-09-05 1980-09-05 Detecting method for concentration of oxygen

Country Status (1)

Country Link
JP (1) JPS5746154A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212126A2 (en) * 1985-06-18 1987-03-04 Radiometer A/S Polarographic measuring electrode device
EP0235016A2 (en) * 1986-02-04 1987-09-02 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Oxygen sensor
JPH021537A (en) * 1987-01-29 1990-01-05 Terumo Corp Oxygen sensor
US5186808A (en) * 1988-01-29 1993-02-16 Terumo Kabushiki Kaisha Film-coated sensor
US5603820A (en) * 1992-04-21 1997-02-18 The United States Of America As Represented By The Department Of Health And Human Services Nitric oxide sensor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212126A2 (en) * 1985-06-18 1987-03-04 Radiometer A/S Polarographic measuring electrode device
US4874501A (en) * 1985-06-18 1989-10-17 Radiometer A/S Membrane for an electrochemical measuring electrode device
EP0235016A2 (en) * 1986-02-04 1987-09-02 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Oxygen sensor
US4861454A (en) * 1986-02-04 1989-08-29 Terumo Kabushiki Kaisha Oxygen sensor
JPH021537A (en) * 1987-01-29 1990-01-05 Terumo Corp Oxygen sensor
US5186808A (en) * 1988-01-29 1993-02-16 Terumo Kabushiki Kaisha Film-coated sensor
US5603820A (en) * 1992-04-21 1997-02-18 The United States Of America As Represented By The Department Of Health And Human Services Nitric oxide sensor

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