JPS57200854A - Detector for oxygen concentration - Google Patents
Detector for oxygen concentrationInfo
- Publication number
- JPS57200854A JPS57200854A JP56084974A JP8497481A JPS57200854A JP S57200854 A JPS57200854 A JP S57200854A JP 56084974 A JP56084974 A JP 56084974A JP 8497481 A JP8497481 A JP 8497481A JP S57200854 A JPS57200854 A JP S57200854A
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolyte
- electrodes
- polarization
- detector
- voltage
- 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
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
- G01N27/4065—Circuit arrangements specially adapted therefor
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 improve responsiveness at low temperature, by a method wherein, in a detector for oxygen concentration in exhaust gas from an internal combustion engine, a voltage with a frequncy, in which polarization of an AC component to a solid electrolyte consists of mainly polarization, is used, and a distance between electrodes is set to 0.5mm. or less. CONSTITUTION:Electrodes 2 and 3, made of platinum, are formed on both surfaces of a laminar solid electrolyte made of ZrO2, and a porous shielding layer 4 is formed on the electrode 3. A power source 5 with a frequency, in which polarization of an AC component consists of mainly polarization of a solid electrolyte, is connected between the electrodes 2 and 3, and a DC power source 7 and a DC voltage detector 8 are mounted. A distance between the electrodes of the solid electrolyte is set to 0.5mm. or less. This causes the electrode 3 to act as a reference electrode, the solid electrolyte to self-heat through application of an AC voltage, increases responsiveness at low temperature, and permits the improvement of a detecting precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084974A JPS57200854A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084974A JPS57200854A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57200854A true JPS57200854A (en) | 1982-12-09 |
Family
ID=13845587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56084974A Pending JPS57200854A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57200854A (en) |
-
1981
- 1981-06-04 JP JP56084974A patent/JPS57200854A/en active Pending
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