JPS61114353U - - Google Patents
Info
- Publication number
- JPS61114353U JPS61114353U JP19827984U JP19827984U JPS61114353U JP S61114353 U JPS61114353 U JP S61114353U JP 19827984 U JP19827984 U JP 19827984U JP 19827984 U JP19827984 U JP 19827984U JP S61114353 U JPS61114353 U JP S61114353U
- Authority
- JP
- Japan
- Prior art keywords
- gas detection
- detection piece
- bridge circuit
- oxide semiconductor
- metal oxide
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 4
- 239000000446 fuel Substances 0.000 claims 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 2
- 150000004706 metal oxides Chemical class 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は実施例の回路図、第２図はその特性図
、第３図は従来例の回路図で有る。
Ａ１，Ａ２……差動増幅器、Ｈ……ヒータ。
FIG. 1 is a circuit diagram of the embodiment, FIG. 2 is a characteristic diagram thereof, and FIG. 3 is a circuit diagram of a conventional example. A1, A2...Differential amplifier, H...Heater.
Claims (1)
たｎ形ガス検出片ｎと、ｐ形金属酸化物半導体の
抵抗値の変化を利用したｐ形ガス検出片ｐと、各
ガス検出片ｎ，ｐにそれぞれ直列に接続した抵抗
Ｒｎ，Ｒｐとで構成したブリツジ回路と、 このブリツジ回路の出力により動作する空燃比
コントローラＩ１と、 ブリツジ回路の全インピーダンスの変化により
動作して、各ガス検出片ｎ，ｐを加熱するための
ヒータへの印加電力をコントロールするヒータコ
ントローラ、 とを有するガス検出装置。[Claims for Utility Model Registration] An n-type gas detection piece n that utilizes a change in resistance value of an n-type metal oxide semiconductor, and a p-type gas detection piece p that uses a change in resistance value of a p-type metal oxide semiconductor. and a bridge circuit composed of resistors Rn and Rp connected in series to each gas detection piece n and p, respectively, an air-fuel ratio controller I1 that operates based on the output of this bridge circuit, and an air-fuel ratio controller I1 that operates based on changes in the total impedance of the bridge circuit. and a heater controller that controls power applied to a heater for heating each gas detection piece n, p.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984198279U JPH0411166Y2 (en) | 1984-12-28 | 1984-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984198279U JPH0411166Y2 (en) | 1984-12-28 | 1984-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61114353U true JPS61114353U (en) | 1986-07-19 |
| JPH0411166Y2 JPH0411166Y2 (en) | 1992-03-19 |
Family
ID=30757138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984198279U Expired JPH0411166Y2 (en) | 1984-12-28 | 1984-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411166Y2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237494A (en) * | 1975-09-20 | 1977-03-23 | Matsushita Electric Works Ltd | Gas, smoke detection device |
| JPS567056U (en) * | 1979-06-28 | 1981-01-22 | ||
| JPS5737824A (en) * | 1980-08-20 | 1982-03-02 | Seiko Epson Corp | Method and device for impurity diffusion |
| JPS5796248A (en) * | 1980-12-05 | 1982-06-15 | Matsushita Electric Ind Co Ltd | Detecting method for gas using superparticulate gas sensor |
| JPS5842960A (en) * | 1981-09-08 | 1983-03-12 | Matsushita Electric Works Ltd | Detection apparatus of combustible gas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567056B2 (en) * | 1973-10-03 | 1981-02-16 |
-
1984
- 1984-12-28 JP JP1984198279U patent/JPH0411166Y2/ja not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237494A (en) * | 1975-09-20 | 1977-03-23 | Matsushita Electric Works Ltd | Gas, smoke detection device |
| JPS567056U (en) * | 1979-06-28 | 1981-01-22 | ||
| JPS5737824A (en) * | 1980-08-20 | 1982-03-02 | Seiko Epson Corp | Method and device for impurity diffusion |
| JPS5796248A (en) * | 1980-12-05 | 1982-06-15 | Matsushita Electric Ind Co Ltd | Detecting method for gas using superparticulate gas sensor |
| JPS5842960A (en) * | 1981-09-08 | 1983-03-12 | Matsushita Electric Works Ltd | Detection apparatus of combustible gas |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411166Y2 (en) | 1992-03-19 |