JPH0325148U - - Google Patents
Info
- Publication number
- JPH0325148U JPH0325148U JP8566989U JP8566989U JPH0325148U JP H0325148 U JPH0325148 U JP H0325148U JP 8566989 U JP8566989 U JP 8566989U JP 8566989 U JP8566989 U JP 8566989U JP H0325148 U JPH0325148 U JP H0325148U
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- electrode
- sensor element
- oxygen sensor
- measuring
- 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 12
- 230000001052 transient effect Effects 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000007784 solid electrolyte Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図はこの考案に係わる触媒の過渡特性測定
装置の構成を示す説明図、第２図は第１図に示し
た触媒の過渡特性測定装置を構成する酸素センサ
素子の触媒付着面に触媒を付着したのちの状態を
示す説明図、第３図は第１図に示した触媒の過渡
特性測定装置を用いて触媒の過渡特性を測定する
一例を示す説明図、第４図ａ，ｂおよび第５図ａ
，ｂは空気過剰Ｌ側から燃料過剰Ｒ側へと雰囲気
が変化し（各図のａの場合）また燃料過剰Ｒ側か
ら空気過剰Ｌ側へと雰囲気が変化した（各図のｂ
の場合）ときのそれぞれ出力変化および出力の時
間変化を測定した結果を示すグラフ、第６図は従
来の自動車用触媒の特性測定装置を例示する説明
図である。
１……触媒の過渡特性測定装置、２……酸素イ
オン伝導性固体電解質、３……第１電極、４……
第２電極、５……保護層、６……触媒付着面、７
……酸素センサ素子、８……測定手段。
FIG. 1 is an explanatory diagram showing the configuration of a catalyst transient characteristic measuring device according to this invention, and FIG. 2 is an explanatory diagram showing the structure of a catalyst transient characteristic measuring device according to this invention. FIG. 3 is an explanatory diagram showing the state after adhesion. FIG. 3 is an explanatory diagram showing an example of measuring the transient characteristics of a catalyst using the catalyst transient characteristic measuring device shown in FIG. Figure 5a
, b, the atmosphere changed from the excess air L side to the excess fuel R side (in the case of a in each figure), and the atmosphere changed from the excess fuel R side to the excess air L side (in case b in each figure).
FIG. 6 is an explanatory diagram illustrating a conventional automobile catalyst characteristic measuring device. DESCRIPTION OF SYMBOLS 1... Catalyst transient characteristic measuring device, 2... Oxygen ion conductive solid electrolyte, 3... First electrode, 4...
Second electrode, 5... Protective layer, 6... Catalyst adhesion surface, 7
...Oxygen sensor element, 8...Measurement means.
Claims (1)
１電極を付着すると共に他方の表面に第２電極を
付着しかつ前記第２電極の表面に耐熱性酸化物を
主成分とする保護層を形成して前記保護層の表面
を触媒付着面に形成した酸素センサ素子と、前記
酸素センサ素子の第２電極側の雰囲気が変化した
ときの前記酸素センサ素子の出力変化により前記
触媒付着面に付着した触媒の過渡的な特性を測定
する測定手段とを備えたことを特徴とする触媒の
過渡特性測定装置。 A first electrode is attached to one surface of an oxygen ion conductive solid electrolyte, a second electrode is attached to the other surface, and a protective layer containing a heat-resistant oxide as a main component is formed on the surface of the second electrode. an oxygen sensor element in which the surface of the protective layer is formed as a catalyst adhering surface; and a catalyst adhering to the catalyst adhering surface due to a change in the output of the oxygen sensor element when the atmosphere on the second electrode side of the oxygen sensor element changes. A device for measuring transient characteristics of a catalyst, comprising a measuring means for measuring the transient characteristics of a catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8566989U JPH0325148U (en) | 1989-07-24 | 1989-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8566989U JPH0325148U (en) | 1989-07-24 | 1989-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0325148U true JPH0325148U (en) | 1991-03-14 |
Family
ID=31634922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8566989U Pending JPH0325148U (en) | 1989-07-24 | 1989-07-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0325148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006189264A (en) * | 2004-12-28 | 2006-07-20 | Ngk Spark Plug Co Ltd | Gas sensor evaluation device |
| JP2006234589A (en) * | 2005-02-25 | 2006-09-07 | Ngk Spark Plug Co Ltd | Gas sensor evaluation method and gas sensor evaluation apparatus |
-
1989
- 1989-07-24 JP JP8566989U patent/JPH0325148U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006189264A (en) * | 2004-12-28 | 2006-07-20 | Ngk Spark Plug Co Ltd | Gas sensor evaluation device |
| JP2006234589A (en) * | 2005-02-25 | 2006-09-07 | Ngk Spark Plug Co Ltd | Gas sensor evaluation method and gas sensor evaluation apparatus |
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