JPS62128361U - - Google Patents
Info
- Publication number
- JPS62128361U JPS62128361U JP1585386U JP1585386U JPS62128361U JP S62128361 U JPS62128361 U JP S62128361U JP 1585386 U JP1585386 U JP 1585386U JP 1585386 U JP1585386 U JP 1585386U JP S62128361 U JPS62128361 U JP S62128361U
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- protective layer
- layer
- electrodes
- ceramic tube
- 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
- 239000003054 catalyst Substances 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 239000007789 gas Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は第１図の―断面図、第３図は同上実施例
において使用される印刷機を示す概略図、第４図
は従来例を示す断面図、第５図は第４図の―
断面図である。
１……セラミツク管、１２……内側電極、１３
……外側電極、１４……第１触媒層（反応促進用
）、１５……第１触媒保護層、１６……第２触媒
層（鉛吸着用）、１７……第２触媒保護層。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figures are a sectional view of FIG. 1, FIG. 3 is a schematic diagram showing a printing machine used in the above embodiment, FIG. 4 is a sectional view of a conventional example, and FIG. 5 is a sectional view of FIG. 4.
FIG. 1... Ceramic tube, 12... Inner electrode, 13
... Outer electrode, 14 ... First catalyst layer (for reaction promotion), 15 ... First catalyst protective layer, 16 ... Second catalyst layer (for lead adsorption), 17 ... Second catalyst protective layer.
Claims (1)
極をそれぞれ形成し、該セラミツク管の先端部外
表面に反応促進用の第１触媒層と該第１触媒層を
覆う第１触媒保護層とを形成すると共に、前記第
１触媒保護層の外周面に鉛吸着用の第２触媒層と
該第２触媒層を覆う第２触媒保護層とを形成して
なり、前記両電極間に発生する起電力により被検
出気体の酸素濃度を検出する酸素センサにおいて
、前記第１、第２触媒層及び徴２触媒保護層をそ
れぞれ前記外表面側電極を覆う部分にのみ形成し
たことを特徴とする酸素センサ。 Electrodes are formed on the inner and outer surfaces of a ceramic tube whose tip is closed, and a first catalyst layer for reaction promotion and a first catalyst protective layer that covers the first catalyst layer are formed on the outer surface of the tip of the ceramic tube. At the same time, a second catalyst layer for adsorbing lead and a second catalyst protective layer covering the second catalyst layer are formed on the outer peripheral surface of the first catalyst protective layer, and the electromotive force generated between the two electrodes is An oxygen sensor for detecting the oxygen concentration of a gas to be detected, characterized in that the first and second catalyst layers and the second catalyst protective layer are each formed only in a portion covering the outer surface side electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1585386U JPS62128361U (en) | 1986-02-07 | 1986-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1585386U JPS62128361U (en) | 1986-02-07 | 1986-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62128361U true JPS62128361U (en) | 1987-08-14 |
Family
ID=33446582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1585386U Pending JPS62128361U (en) | 1986-02-07 | 1986-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62128361U (en) |
-
1986
- 1986-02-07 JP JP1585386U patent/JPS62128361U/ja active Pending