JPS57200848A - Detector for oxygen concentration - Google Patents
Detector for oxygen concentrationInfo
- Publication number
- JPS57200848A JPS57200848A JP56084967A JP8496781A JPS57200848A JP S57200848 A JPS57200848 A JP S57200848A JP 56084967 A JP56084967 A JP 56084967A JP 8496781 A JP8496781 A JP 8496781A JP S57200848 A JPS57200848 A JP S57200848A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- oxygen concentration
- electrode
- cell
- temperature
- 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 detect a working temperature of a cell, by a method wherein, in a detector for an oxygen concentration in exhaust gas from an internal combustion engine, a resistor, whereto an AC voltage is applied, is positioned adjoining a solid electrolyte, of which an oxygen concentration cell consists, to detect impedance of a resistor and an electromotive force of a cell. CONSTITUTION:An external electrode 8, consisting of a heat resisting conductive material, such as platinum, and a reference electrode 9 are mounted to an oxygen ion conductive solid electrolyte 7 to constitute an oxygen concentration cell. A resistor 11 is firmly adhered to a part of the electrode 9, and an electrode 10 is attached to the outer surface of the resistor 11. The electrode 8 makes contact with gas to be measured, and a part, whereto the resistor 11 is not firmly adhered, contacts the air or known oxygen concentration gas. An AC power source 12 with a frequency, in which polarization of an AC component consists of a mainly polarization of the inside of the resistor, is connected to the resistor 11, and an AC voltage detector 14 and a DC voltage detector 15 are installed. This permits finding of the temperature of the resistor 11 through finding of the impedance of the resistor 11. The oxygen concentration cell is firmly adhered to the resistor 11, which results in enabling to find the temperature of the oxygen concentration cell following the temperature of the resistor 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084967A JPS57200848A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084967A JPS57200848A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57200848A true JPS57200848A (en) | 1982-12-09 |
Family
ID=13845389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56084967A Pending JPS57200848A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57200848A (en) |
-
1981
- 1981-06-04 JP JP56084967A patent/JPS57200848A/en active Pending
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