JPH0310252U - - Google Patents
Info
- Publication number
- JPH0310252U JPH0310252U JP7120389U JP7120389U JPH0310252U JP H0310252 U JPH0310252 U JP H0310252U JP 7120389 U JP7120389 U JP 7120389U JP 7120389 U JP7120389 U JP 7120389U JP H0310252 U JPH0310252 U JP H0310252U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- gas
- detected
- sensor element
- sensor
- 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 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 4
- 239000000843 powder Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000007784 solid electrolyte Substances 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 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酸素センサの
部分断面図、第２図は従来の酸素センサの部分断
面図、第３図は従来例における問題点を説明する
出力特性図である。
１……センサ素子、１ａ……濃度検出部、４…
…ホルダ、６……グラフアイト、２１……タルク
、２２……酸化触媒粒子。
FIG. 1 is a partial sectional view of an oxygen sensor showing an embodiment of the present invention, FIG. 2 is a partial sectional view of a conventional oxygen sensor, and FIG. 3 is an output characteristic diagram illustrating problems in the conventional example. 1...sensor element, 1a...concentration detection section, 4...
...Holder, 6...Graphite, 21...Talc, 22...Oxidation catalyst particles.
Claims (1)
形成された濃度検出部の相互に隔絶された内外表
面にそれぞれ接触する基準酸素用大気と被検出気
体との酸素濃度差により被検出気体の酸素濃度を
検出するセンサ素子を、該センサ素子の略基端部
を圧粉体を介してホルダに保持させると共に、該
圧粉体によつて被検出気体側空間と画成された大
気側空間から圧粉体をバイパスして、センサ素子
の一方の表面に直接大気を導く構造を有した酸素
センサにおいて、 前記圧粉体に被検出気体の酸化反応を促進させ
る酸化触媒粒子を混在させたことを特徴とする酸
素センサ。[Claim for Utility Model Registration] Oxygen concentration of the reference oxygen atmosphere and the detected gas that are in contact with the mutually isolated inner and outer surfaces of the concentration detection section formed at the tip of the oxygen ion conductive solid electrolyte member. A sensor element that detects the oxygen concentration of a gas to be detected based on the difference is held in a holder with a substantially proximal end of the sensor element via a powder compact, and is separated from a space on the side of the gas to be detected by the powder compact. In an oxygen sensor having a structure in which the air is directly guided to one surface of the sensor element by bypassing the green compact from the atmosphere side space, the green compact includes an oxidation catalyst that promotes the oxidation reaction of the gas to be detected. An oxygen sensor characterized by a mixture of particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7120389U JPH0310252U (en) | 1989-06-20 | 1989-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7120389U JPH0310252U (en) | 1989-06-20 | 1989-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0310252U true JPH0310252U (en) | 1991-01-31 |
Family
ID=31608023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7120389U Pending JPH0310252U (en) | 1989-06-20 | 1989-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310252U (en) |
-
1989
- 1989-06-20 JP JP7120389U patent/JPH0310252U/ja active Pending
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