JPS57200851A - Detector for oxygen concentration - Google Patents
Detector for oxygen concentrationInfo
- Publication number
- JPS57200851A JPS57200851A JP56084970A JP8497081A JPS57200851A JP S57200851 A JPS57200851 A JP S57200851A JP 56084970 A JP56084970 A JP 56084970A JP 8497081 A JP8497081 A JP 8497081A JP S57200851 A JPS57200851 A JP S57200851A
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolyte
- oxygen concentration
- electrode
- detector
- power source
- 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
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
- G01N27/4067—Means for heating or controlling the temperature of the solid electrolyte
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 enhance responsiveness, by a method wherein, in a detector for oxygen concentration in exhaust gas from an internal combustion engine, a solid electrolyte is caused to self-heats resulting from the application of an AC voltage to it, and a second heating means is mounted around or in the solid electrolyte. CONSTITUTION:An internal electrode 4, such as platinum, is mounted to an inner surface of a cylinder type solid electrolyte 3, and an external electrode 5, forming an oxygen concentration cell pairing with the electrode 4, is installed to an outer surface to cover it with a porous protection layer. A power source 7, applying an AC voltage with a frequency, in which polarization of an AC component consists of mainly polarization of the solid electrolyte 3, is connected to the electrodes 4 and 5 through a capacitor 8 for checking a DC component. Additionally, a heating wire 6 is inserted to the inside of the electrode 4, and a DC power source 12 is connected through a switch 13. The constitution enables to obtain a detector which permits oxygen concentration to be reliably measured with a better responsiveness and at a low temperature even in low-temperature atmosphere gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084970A JPS57200851A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084970A JPS57200851A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57200851A true JPS57200851A (en) | 1982-12-09 |
| JPS6359461B2 JPS6359461B2 (en) | 1988-11-18 |
Family
ID=13845479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56084970A Granted JPS57200851A (en) | 1981-06-04 | 1981-06-04 | Detector for oxygen concentration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57200851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017072581A (en) * | 2015-10-09 | 2017-04-13 | 株式会社デンソー | Gas sensor |
-
1981
- 1981-06-04 JP JP56084970A patent/JPS57200851A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017072581A (en) * | 2015-10-09 | 2017-04-13 | 株式会社デンソー | Gas sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6359461B2 (en) | 1988-11-18 |
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