JPS6435360A - Oxygen concentration detector - Google Patents

Oxygen concentration detector

Info

Publication number
JPS6435360A
JPS6435360A JP62192454A JP19245487A JPS6435360A JP S6435360 A JPS6435360 A JP S6435360A JP 62192454 A JP62192454 A JP 62192454A JP 19245487 A JP19245487 A JP 19245487A JP S6435360 A JPS6435360 A JP S6435360A
Authority
JP
Japan
Prior art keywords
electrode
gas diffusion
gas
diffusion resistance
measured
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
JP62192454A
Other languages
Japanese (ja)
Other versions
JPH07117523B2 (en
Inventor
Kazuyoshi Terakado
Shin Onose
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62192454A priority Critical patent/JPH07117523B2/en
Publication of JPS6435360A publication Critical patent/JPS6435360A/en
Publication of JPH07117523B2 publication Critical patent/JPH07117523B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

PURPOSE:To detect an air excess rate linearly from a rich region to a lean region by providing different gas diffusion resistance layers to a reaction electrode and selectively using these layers. CONSTITUTION:Of a pair of the electrodes 2, 3 which are disposed on both faces of a solid electrolyte element and have air permeability and catalytic activity, the electrode 2 on the side to be exposed to a gaseous atmosphere to be measured is divided to at least two plural electrodes 2a, 2b. The gas diffusion resistance layers of different gas diffusion resistances such as a 1st gas diffusion resistance layer 4a for rate determination of oxygen in the gas to be measured and the 2nd gas diffusion resistance layer 4b for rate determination of the gases except the oxygen in the gas to be measured are provided on these plural electrodes 2a, 2b. A voltage impressing means 8 is adapted to apply voltage on the electrode 2a on the 1st gas diffusion resistance layer 4a side and the electrode 3 to be exposed to a standard gas side when the concn. of the oxygen in the gas to be measured is above the prescribed value and to the electrode 2b on the 2nd gas diffusion resistance layer 4b side and the electrode 3 to be exposed to the standard gas side when the concn. is below the prescribed value.
JP62192454A 1987-07-31 1987-07-31 Oxygen concentration detector Expired - Lifetime JPH07117523B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62192454A JPH07117523B2 (en) 1987-07-31 1987-07-31 Oxygen concentration detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62192454A JPH07117523B2 (en) 1987-07-31 1987-07-31 Oxygen concentration detector

Publications (2)

Publication Number Publication Date
JPS6435360A true JPS6435360A (en) 1989-02-06
JPH07117523B2 JPH07117523B2 (en) 1995-12-18

Family

ID=16291571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62192454A Expired - Lifetime JPH07117523B2 (en) 1987-07-31 1987-07-31 Oxygen concentration detector

Country Status (1)

Country Link
JP (1) JPH07117523B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147293A (en) * 2005-11-24 2007-06-14 Honda Motor Co Ltd Gas concentration detector
JP2007155605A (en) * 2005-12-07 2007-06-21 Toyota Motor Corp Exhaust gas sensor system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147293A (en) * 2005-11-24 2007-06-14 Honda Motor Co Ltd Gas concentration detector
JP2007155605A (en) * 2005-12-07 2007-06-21 Toyota Motor Corp Exhaust gas sensor system

Also Published As

Publication number Publication date
JPH07117523B2 (en) 1995-12-18

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