JPS55125446A - Detector for oxygen concentration - Google Patents
Detector for oxygen concentrationInfo
- Publication number
- JPS55125446A JPS55125446A JP3273879A JP3273879A JPS55125446A JP S55125446 A JPS55125446 A JP S55125446A JP 3273879 A JP3273879 A JP 3273879A JP 3273879 A JP3273879 A JP 3273879A JP S55125446 A JPS55125446 A JP S55125446A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- exhaust gas
- external electrode
- porcelain powder
- high 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
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
PURPOSE: To keep the initial characteristics of the detector inscribed on the face stably for a long time by using a precious metal electrode that contains a specific quantity of fine powder of metal oxide for the electrode in the exhaust gas side.
CONSTITUTION: Alumina porcelain powder the particle diameter of which is 0.1μ or less is mixed in a precious metal compound aqueous solution such as platinum chloride aqueous soltion and is stirred. The obtained suspension is applied to the outside of a one-side-sealed pipe-shaped ion conductive solid electrolyte porcelain, and is thermally decomposed at high temperature to make the quantity of alumina porcelain powder contained in the platinum electrode as the external electrode 5.0% up to 30.0% by weight. The internal electrode is installed as before, and is made contact with air as a reference, the external electrode is made contact with exhaust gas, ultrapower caused by the difference between both oxygen partial pressures is sensed to detect the quantity of oxygen in the exhaust gas. The external electrode is not corroded because the porcelain powder is present althrough the electrode is exposed in a high temperature exhaust gas, the initial characteristics can stably be maintained for a long time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3273879A JPS55125446A (en) | 1979-03-20 | 1979-03-20 | Detector for oxygen concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3273879A JPS55125446A (en) | 1979-03-20 | 1979-03-20 | Detector for oxygen concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55125446A true JPS55125446A (en) | 1980-09-27 |
Family
ID=12367166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3273879A Pending JPS55125446A (en) | 1979-03-20 | 1979-03-20 | Detector for oxygen concentration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55125446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01184457A (en) * | 1988-01-18 | 1989-07-24 | Ngk Insulators Ltd | Oxygen sensor element |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210193A (en) * | 1975-07-15 | 1977-01-26 | Hitachi Ltd | Element for oxygen concentration measuring use |
| JPS5242183A (en) * | 1975-09-30 | 1977-04-01 | Ngk Insulators Ltd | Cell for measuring partial presure of oxygen |
| JPS5246889A (en) * | 1975-10-11 | 1977-04-14 | Hitachi Ltd | Solid electrolyte oxygen detector |
-
1979
- 1979-03-20 JP JP3273879A patent/JPS55125446A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210193A (en) * | 1975-07-15 | 1977-01-26 | Hitachi Ltd | Element for oxygen concentration measuring use |
| JPS5242183A (en) * | 1975-09-30 | 1977-04-01 | Ngk Insulators Ltd | Cell for measuring partial presure of oxygen |
| JPS5246889A (en) * | 1975-10-11 | 1977-04-14 | Hitachi Ltd | Solid electrolyte oxygen detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01184457A (en) * | 1988-01-18 | 1989-07-24 | Ngk Insulators Ltd | Oxygen sensor element |
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