JPH0321765U - - Google Patents
Info
- Publication number
- JPH0321765U JPH0321765U JP8209789U JP8209789U JPH0321765U JP H0321765 U JPH0321765 U JP H0321765U JP 8209789 U JP8209789 U JP 8209789U JP 8209789 U JP8209789 U JP 8209789U JP H0321765 U JPH0321765 U JP H0321765U
- Authority
- JP
- Japan
- Prior art keywords
- zirconia tube
- zirconia
- order
- sensor body
- 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
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 229910052727 yttrium Inorganic materials 0.000 claims 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図および第２図は本考案の実施例を示し、
第１図はジルコニアチユーブの縦断面図、第２図
は仮焼成後のジルコニアチユーブをジルコニアペ
ースト中に浸漬させた状態を示す縦断面図、第３
図ないし第６図は従来技術を示し、第３図はヒー
タ付き酸素センサの縦断面図、第４図は電気回路
図、第５図は周囲温度と検出信号との関係を示す
特性線図、第６図は第３図中の矢示−方向の
断面図である。
１……センサ本体、２……ホルダ、３……キヤ
ツプ、５……コンタクトパイプ、７……ヒータ、
２１……ジルコニアチユーブ、２４……イツトリ
ア低比率層、２６……ジルコニアペースト。
1 and 2 show an embodiment of the present invention,
Figure 1 is a vertical cross-sectional view of a zirconia tube, Figure 2 is a vertical cross-sectional view showing the zirconia tube immersed in zirconia paste after pre-firing, and Figure 3 is a vertical cross-sectional view of a zirconia tube immersed in zirconia paste.
6 to 6 show the prior art, FIG. 3 is a vertical cross-sectional view of an oxygen sensor with a heater, FIG. 4 is an electric circuit diagram, and FIG. 5 is a characteristic diagram showing the relationship between ambient temperature and detection signal. FIG. 6 is a sectional view taken in the direction indicated by the arrow in FIG. 3. 1...Sensor body, 2...Holder, 3...Cap, 5...Contact pipe, 7...Heater,
21... Zirconia tube, 24... Ittria low ratio layer, 26... Zirconia paste.
Claims (1)
ガス中の酸素濃度を検出すべく、ジルコニアにイ
ツトリアを所定比率で混合して焼成することによ
り形成されたジルコニアチユーブと、該ジルコニ
アチユーブからの検出信号を外部に導出するため
、前記センサ本体内に設けられたコンタクトパイ
プと、前記ジルコニアチユーブを加熱すべく、先
端側が該ジルコニアチユーブ内に伸長し、基端側
が該コンタクトパイプ内に配設されたヒータとか
らなるヒータ付き酸素センサにおいて、前記ジル
コニアチユーブの比抵抗を上げるべく、該ジルコ
ニアチユーブの外面側にイツトリア低比率層を形
成したことを特徴とするヒータ付き酸素センサ。 A sensor body, a zirconia tube provided in the sensor body and formed by mixing and firing zirconia and itria at a predetermined ratio in order to detect oxygen concentration in exhaust gas, and a detection signal from the zirconia tube. a contact pipe provided within the sensor body in order to lead out the zirconia tube to the outside; and a heater whose distal end extends into the zirconia tube and whose proximal end is disposed within the contact pipe in order to heat the zirconia tube. What is claimed is: 1. An oxygen sensor with a heater comprising: a low yttrium ratio layer formed on the outer surface of the zirconia tube in order to increase the specific resistance of the zirconia tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8209789U JPH0321765U (en) | 1989-07-12 | 1989-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8209789U JPH0321765U (en) | 1989-07-12 | 1989-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0321765U true JPH0321765U (en) | 1991-03-05 |
Family
ID=31628612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8209789U Pending JPH0321765U (en) | 1989-07-12 | 1989-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002272079A (en) * | 2001-03-13 | 2002-09-20 | Honda Motor Co Ltd | Structure of outer rotor type brushless motor |
| JP2006314165A (en) * | 2005-05-09 | 2006-11-16 | Nippon Densan Corp | Motor |
-
1989
- 1989-07-12 JP JP8209789U patent/JPH0321765U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002272079A (en) * | 2001-03-13 | 2002-09-20 | Honda Motor Co Ltd | Structure of outer rotor type brushless motor |
| JP2006314165A (en) * | 2005-05-09 | 2006-11-16 | Nippon Densan Corp | Motor |
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