JPS5666750A - Power supply circuit for oxygen sensor element - Google Patents
Power supply circuit for oxygen sensor elementInfo
- Publication number
- JPS5666750A JPS5666750A JP14276879A JP14276879A JPS5666750A JP S5666750 A JPS5666750 A JP S5666750A JP 14276879 A JP14276879 A JP 14276879A JP 14276879 A JP14276879 A JP 14276879A JP S5666750 A JPS5666750 A JP S5666750A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- power supply
- sensor element
- partial pressure
- reference electrode
- 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
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
PURPOSE: To make stable the operation as sensor element and to simplify the constitution, by supplying the reference electrode oxygen partial pressure control current in response to the change in the voltage applied to heater for temperature maintenance.
CONSTITUTION: Oxygen ion conductive solidstate electrolyte 4 is used, oxygen ions are moved in the electrolyte 4 with the control current supplied through the connection to external power supply Vc, and oxygen partial pressure of the reference electrode 3 is controlled. Further, when an external power supply VB is input, the heater 2 is heated, and the voltage of the power supply VB is changed depending on the running state of an automobile, the oxygen sensor element temperature is changed and the sensor element request current is also changed. Thus, the control current Ic controls the reference electrode oxygen partial pressure, and the electromotive force E corresponding to the difference between the partial pressure of oxygen of the reference electrode 3 and that of the measuring electrode 5 is detected at the measuring device Vs.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14276879A JPS5666750A (en) | 1979-11-06 | 1979-11-06 | Power supply circuit for oxygen sensor element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14276879A JPS5666750A (en) | 1979-11-06 | 1979-11-06 | Power supply circuit for oxygen sensor element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5666750A true JPS5666750A (en) | 1981-06-05 |
JPS616336B2 JPS616336B2 (en) | 1986-02-25 |
Family
ID=15323127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14276879A Granted JPS5666750A (en) | 1979-11-06 | 1979-11-06 | Power supply circuit for oxygen sensor element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5666750A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57211543A (en) * | 1981-06-23 | 1982-12-25 | Nissan Motor Co Ltd | Electric current control device for oxygen sensor |
-
1979
- 1979-11-06 JP JP14276879A patent/JPS5666750A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57211543A (en) * | 1981-06-23 | 1982-12-25 | Nissan Motor Co Ltd | Electric current control device for oxygen sensor |
Also Published As
Publication number | Publication date |
---|---|
JPS616336B2 (en) | 1986-02-25 |
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