JPS5796247A - Oxygen sensor - Google Patents
Oxygen sensorInfo
- Publication number
- JPS5796247A JPS5796247A JP17217480A JP17217480A JPS5796247A JP S5796247 A JPS5796247 A JP S5796247A JP 17217480 A JP17217480 A JP 17217480A JP 17217480 A JP17217480 A JP 17217480A JP S5796247 A JPS5796247 A JP S5796247A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- exhaust gas
- sensitive
- sensitive layer
- metal
- 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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (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 measurement of the composition of exhaust gas on the side of a lead without being influenced by the temperature of the exhaust gas, by providing gas-sensitive parts formed of metal-oxide semiconductor material on both front and back surfaces of the same base plate and by making one gas- sensitive part serve as a temperature compensating part contacting with the air. CONSTITUTION:On both surfaces of a refractory ceramic base plate 1 such as alumina are formed electrode layers 4, 5, 6 and 7 formed of Pt or the like and the gas-sensitive layers 2 and 3 formed of the metal-oxide semiconductor material. The element part thus formed is housed in a metal housing 11 and sealed from the exhaust gas by a metal packing 13 and electrode leads are fixed thereto by a ceramic insulator 12. The gas-sensitive layer 2 contacts with the exhaust gas, while the gas-sensitive layer 3 contacts with the air through the center hole of the ceramic insulator 12. Since the concentration of oxygen in the air is fixed, no change in the resistance of the gas-sensitive layer 3 is caused by the density of oxygen, while its resistance is changed by the temperature of the exhaust gas since it is formed on the same base plate with the gas-sensitive layer 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17217480A JPS5796247A (en) | 1980-12-06 | 1980-12-06 | Oxygen sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17217480A JPS5796247A (en) | 1980-12-06 | 1980-12-06 | Oxygen sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5796247A true JPS5796247A (en) | 1982-06-15 |
Family
ID=15936937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17217480A Pending JPS5796247A (en) | 1980-12-06 | 1980-12-06 | Oxygen sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5796247A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58194468A (en) * | 1982-05-07 | 1983-11-12 | Hitachi Ltd | Checking method of picture quality |
-
1980
- 1980-12-06 JP JP17217480A patent/JPS5796247A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58194468A (en) * | 1982-05-07 | 1983-11-12 | Hitachi Ltd | Checking method of picture quality |
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