JPS62126766U - - Google Patents
Info
- Publication number
- JPS62126766U JPS62126766U JP1349686U JP1349686U JPS62126766U JP S62126766 U JPS62126766 U JP S62126766U JP 1349686 U JP1349686 U JP 1349686U JP 1349686 U JP1349686 U JP 1349686U JP S62126766 U JPS62126766 U JP S62126766U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electrodes
- oxygen
- limiting current
- water
- 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
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910002076 stabilized zirconia Inorganic materials 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims 2
- 230000001419 dependent effect Effects 0.000 claims 1
- -1 oxygen ions Chemical class 0.000 claims 1
- 239000007784 solid electrolyte Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は２段プラトー領域を有する本考案の原
理的プラトー特性線図、第２図は本考案の一実施
例の概略構成図、第３図は第２図の演算回路機能
説明図、第４図は第２図における出力電流と水蒸
気濃度との関係線図、第５図はジルコニア酸素セ
ンサの原理説明図、第６図は限界電流形酸素セン
サの原理説明図、第７図は第６図の限界電流のプ
ラトー特性例を示す線図である。
１：安定化ジルコニア、２：電極、３：蓋、４
：微小拡散孔、１０：演算回路、１２：センサ部
、１３：電子回路部。
Fig. 1 is a theoretical plateau characteristic diagram of the present invention having a two-step plateau region, Fig. 2 is a schematic configuration diagram of an embodiment of the invention, Fig. 3 is a functional explanatory diagram of the arithmetic circuit shown in Fig. 2, Figure 4 is a relationship diagram between the output current and water vapor concentration in Figure 2, Figure 5 is a diagram explaining the principle of a zirconia oxygen sensor, Figure 6 is a diagram explaining the principle of a limiting current type oxygen sensor, and Figure 7 is a diagram explaining the principle of a zirconia oxygen sensor. FIG. 3 is a diagram showing an example of the plateau characteristic of the limiting current shown in the figure. 1: Stabilized zirconia, 2: Electrode, 3: Lid, 4
: minute diffusion hole, 10: arithmetic circuit, 12: sensor section, 13: electronic circuit section.
Claims (1)
安定化ジルコニアと、この安定化ジルコニアの両
面に設けられた２個の電極と、前記電極のいずれ
か一方を覆い、かつ微小拡散孔が設けられた蓋と
を有し、前記電極間に印加される電圧の所定の領
域で生じる限界電流が前記電極周辺の酸素濃度に
比例する限界電流形酸素センサにおいて、前記限
界電流が酸素のみに依存するような水の理論分解
電圧より小さい電圧を第１電圧とし酸素と水蒸気
とに依存するような水の理論分解電圧より大きい
電圧を第２電圧として前記第１電圧と第２電圧と
を交互に切換えて前記電極間に印加し、前記第１
および第２電圧による前記電極からのそれぞれの
入力を保持し減算して湿度を検出する演算回路を
備えたことを特徴とする湿度センサ。 Stabilized zirconia, which is a solid electrolyte with good conductivity for oxygen ions, two electrodes provided on both sides of the stabilized zirconia, and one of the electrodes covered with micro diffusion holes. In a limiting current type oxygen sensor having a lid, in which the limiting current generated in a predetermined region of the voltage applied between the electrodes is proportional to the oxygen concentration around the electrodes, the limiting current is dependent only on oxygen. The first voltage and the second voltage are alternately switched, with a voltage smaller than the theoretical decomposition voltage of water as the first voltage and a voltage larger than the theoretical decomposition voltage of water depending on oxygen and water vapor as the second voltage. applied between the electrodes, and the first
and an arithmetic circuit that holds and subtracts respective inputs from the electrodes using a second voltage to detect humidity.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1349686U JPS62126766U (en) | 1986-02-01 | 1986-02-01 | |
| DE19873702838 DE3702838A1 (en) | 1986-02-01 | 1987-01-30 | OXYGEN SENSOR AND METHOD FOR THE PRODUCTION THEREOF |
| US07/008,655 US4762605A (en) | 1986-02-01 | 1987-01-30 | Oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1349686U JPS62126766U (en) | 1986-02-01 | 1986-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62126766U true JPS62126766U (en) | 1987-08-11 |
Family
ID=30802607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1349686U Pending JPS62126766U (en) | 1986-02-01 | 1986-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62126766U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59217151A (en) * | 1983-05-26 | 1984-12-07 | Toyota Central Res & Dev Lab Inc | Detector for concentration of plurality of gas components using polarography type sensor |
| JPS6091251A (en) * | 1983-10-26 | 1985-05-22 | Hitachi Ltd | Air-fuel ratio sensor |
-
1986
- 1986-02-01 JP JP1349686U patent/JPS62126766U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59217151A (en) * | 1983-05-26 | 1984-12-07 | Toyota Central Res & Dev Lab Inc | Detector for concentration of plurality of gas components using polarography type sensor |
| JPS6091251A (en) * | 1983-10-26 | 1985-05-22 | Hitachi Ltd | Air-fuel ratio sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57137850A (en) | Oxygen concentration measuring element | |
| KR840006407A (en) | Air-fuel ratio sensor | |
| JPS62126766U (en) | ||
| JPS62126765U (en) | ||
| JPS6360954U (en) | ||
| JPS6378262U (en) | ||
| JPH0310253U (en) | ||
| JPS6015659U (en) | Oxygen concentration detection element | |
| JPS6383661A (en) | Method for measuring humidity by using solid electrolyte | |
| JPS63200764U (en) | ||
| JPS60100658U (en) | oxygen sensor element | |
| JPS6378263U (en) | ||
| JPS6383654U (en) | ||
| JPH0295855U (en) | ||
| JPS61119753U (en) | ||
| JPS6257158U (en) | ||
| JPS59137559U (en) | oxygen concentration detector | |
| JPS63101861U (en) | ||
| JPS63193353U (en) | ||
| JPS6329748U (en) | ||
| JPS6321851U (en) | ||
| JPH01168864U (en) | ||
| JPS6013457U (en) | Oxygen concentration detection element | |
| JPS62173051U (en) | ||
| JPH01180650U (en) |