JPS61206863U - - Google Patents
Info
- Publication number
- JPS61206863U JPS61206863U JP9045485U JP9045485U JPS61206863U JP S61206863 U JPS61206863 U JP S61206863U JP 9045485 U JP9045485 U JP 9045485U JP 9045485 U JP9045485 U JP 9045485U JP S61206863 U JPS61206863 U JP S61206863U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen sensor
- gas diffusion
- oxygen
- rate
- electrodes
- 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
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000007784 solid electrolyte Substances 0.000 claims description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Description
第１図はこの考案の一実施例による酸素センサ
の模型的断面説明図、第２図ａ〜ｈは第１図に示
す酸素センサの製造工程を例示する模型的平面説
明図、第３図、第４図および第５図は第１図に示
した酸素センサの特性を示す説明図、第６図は第
１図に示した酸素センサの当量比とポンプ電流と
の関係を示す説明図、第７図は酸素センサの構造
による特性のばらつきを調べた結果を示すグラフ
、第８図はこの考案の他の実施例による酸素セン
サの模型的断面説明図、第９図は従来の酸素セン
サの模型的断面説明図、第１０図は第９図に示し
た従来の酸素センサの製造工程を示す説明図であ
る。
１，２１…酸素センサ、２，２２…酸素イオン
伝導性固体電解質、３，４，２３，２４…酸素ポ
ンプ部の電極、５，２５…酸素ポンプ部、７，８
，２４，２８…酸素センサ部の電極、９，２９…
遷移金属酸化物、１０，３０…酸素センサ部、１
１，３１…ガス拡散を律速しない多孔性層、１２
，３２…ガス拡散を律速するガス拡散律速層。
FIG. 1 is a schematic cross-sectional view of an oxygen sensor according to an embodiment of the invention, FIGS. 2a to 2h are schematic plane views illustrating the manufacturing process of the oxygen sensor shown in FIG. 4 and 5 are explanatory diagrams showing the characteristics of the oxygen sensor shown in FIG. 1, and FIG. 6 is an explanatory diagram showing the relationship between the equivalence ratio and pump current of the oxygen sensor shown in FIG. Figure 7 is a graph showing the results of investigating the variation in characteristics due to the structure of the oxygen sensor, Figure 8 is a schematic cross-sectional diagram of an oxygen sensor according to another embodiment of this invention, and Figure 9 is a model of a conventional oxygen sensor. 10 is an explanatory diagram showing the manufacturing process of the conventional oxygen sensor shown in FIG. 9. DESCRIPTION OF SYMBOLS 1, 21... Oxygen sensor, 2, 22... Oxygen ion conductive solid electrolyte, 3, 4, 23, 24... Electrode of oxygen pump part, 5, 25... Oxygen pump part, 7, 8
, 24, 28... Electrode of oxygen sensor section, 9, 29...
Transition metal oxide, 10, 30...oxygen sensor part, 1
1, 31...Porous layer that does not limit gas diffusion, 12
, 32... A gas diffusion rate controlling layer that controls gas diffusion.
Claims (1)
りなる酸素ポンプ部の前記一方の電極側に、遷移
金属酸化物と一対の電極とよりなる酸素センサ部
を設け、前記酸素センサ部に、ガス拡散を律速し
ない多孔性層を介して、ガス拡散を律速するガス
拡散律速層を設けたことを特徴とする酸素センサ
。 An oxygen sensor section consisting of a transition metal oxide and a pair of electrodes is provided on the one electrode side of the oxygen pump section consisting of an oxygen ion-conducting solid electrolyte and a pair of electrodes, and the oxygen sensor section is configured to allow gas diffusion. An oxygen sensor characterized by providing a gas diffusion rate-limiting layer that rate-limits gas diffusion via a non-rate-limiting porous layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9045485U JPS61206863U (en) | 1985-06-14 | 1985-06-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9045485U JPS61206863U (en) | 1985-06-14 | 1985-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61206863U true JPS61206863U (en) | 1986-12-27 |
Family
ID=30645460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9045485U Pending JPS61206863U (en) | 1985-06-14 | 1985-06-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61206863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0755765A (en) * | 1993-08-12 | 1995-03-03 | Toyota Central Res & Dev Lab Inc | Thin film laminated air-fuel ratio sensor |
-
1985
- 1985-06-14 JP JP9045485U patent/JPS61206863U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0755765A (en) * | 1993-08-12 | 1995-03-03 | Toyota Central Res & Dev Lab Inc | Thin film laminated air-fuel ratio sensor |