JPS6197754U - - Google Patents
Info
- Publication number
- JPS6197754U JPS6197754U JP18236384U JP18236384U JPS6197754U JP S6197754 U JPS6197754 U JP S6197754U JP 18236384 U JP18236384 U JP 18236384U JP 18236384 U JP18236384 U JP 18236384U JP S6197754 U JPS6197754 U JP S6197754U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- ratio sensor
- electrolyte layer
- outer 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 11
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000007784 solid electrolyte Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図ａ，ｂは本考案の一実施例を示すリーン
領域検出時及びリツチ領域検出時の空燃比センサ
の断面図、第２図は同上の空燃比センサの平面図
、第３図ａ，ｂは従来例を示すリーン領域検出時
及びリツチ領域検出時の空燃比センサの断面図、
第４図は同上の空燃比センサの断面図、第５図は
空燃比センサの電圧−電流特性図、第６図は空燃
比センサの空燃比−限界電流特性図である。
１…基板、２…内側電極、３…固体電解質層、
４…外側電極、５…拡散層。
Figures 1a and b are cross-sectional views of an air-fuel ratio sensor during lean region detection and rich region detection, showing an embodiment of the present invention, Figure 2 is a plan view of the same air-fuel ratio sensor, and Figures 3a and b are cross-sectional views of a conventional air-fuel ratio sensor when detecting a lean region and a rich region;
FIG. 4 is a sectional view of the air-fuel ratio sensor same as above, FIG. 5 is a voltage-current characteristic diagram of the air-fuel ratio sensor, and FIG. 6 is an air-fuel ratio-limit current characteristic diagram of the air-fuel ratio sensor. 1... Substrate, 2... Inner electrode, 3... Solid electrolyte layer,
4...Outer electrode, 5...Diffusion layer.
Claims (1)
体電解質層、外側電極を順次積層し、さらに外側
電極を含め固体電解質層を拡散層で覆つてなり、
内側電極と外側電極との間に電圧を印加し、かつ
リツチ領域とリーン領域とで電圧の印加方向を反
転させ、電流値から空燃比を検出するようにした
空燃比センサにおいて、内側電極を固体電解質層
及び拡散層より大きく形成して、その外縁部を被
測定ガス雰囲気に曝すように構成したことを特徴
とする空燃比センサ。 An inner electrode, an oxygen ion conductive solid electrolyte layer, and an outer electrode are sequentially laminated on one side of the substrate, and the solid electrolyte layer including the outer electrode is further covered with a diffusion layer.
In an air-fuel ratio sensor that applies a voltage between an inner electrode and an outer electrode, and reverses the direction of voltage application between rich and lean regions, the air-fuel ratio is detected from the current value. An air-fuel ratio sensor characterized in that the air-fuel ratio sensor is formed larger than an electrolyte layer and a diffusion layer so that its outer edge is exposed to an atmosphere of a gas to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18236384U JPS6197754U (en) | 1984-12-03 | 1984-12-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18236384U JPS6197754U (en) | 1984-12-03 | 1984-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6197754U true JPS6197754U (en) | 1986-06-23 |
Family
ID=30739900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18236384U Pending JPS6197754U (en) | 1984-12-03 | 1984-12-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6197754U (en) |
-
1984
- 1984-12-03 JP JP18236384U patent/JPS6197754U/ja active Pending