JPS61174660U - - Google Patents
Info
- Publication number
- JPS61174660U JPS61174660U JP5871885U JP5871885U JPS61174660U JP S61174660 U JPS61174660 U JP S61174660U JP 5871885 U JP5871885 U JP 5871885U JP 5871885 U JP5871885 U JP 5871885U JP S61174660 U JPS61174660 U JP S61174660U
- Authority
- JP
- Japan
- Prior art keywords
- resistance value
- variable resistor
- adjustment circuit
- value adjustment
- detector
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001419 dependent effect Effects 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は、本考案の排気ガス濃度検知装置を示
す回路図、第２図は、従来の一酸化炭素の検出装
置を示す回路図、第３図は、従来の抵抗式ガスセ
ンサを示す回路図である。
１……排気ガス濃度検知装置、２……抵抗式排
気ガスセンサ、４……検出ブリツジ回路、５……
抵抗値調整回路、５ａ……中間接続点、６……第
一切換スイツチ、６ａ……第二切換スイツチ、７
……検知器、８……標準器、１５……基準可変抵
抗器、１６……従属可変抵抗器、２０，２９……
共通端子、２５，３０……出力端子、３１，３２
……固定抵抗器。
Fig. 1 is a circuit diagram showing an exhaust gas concentration detection device of the present invention, Fig. 2 is a circuit diagram showing a conventional carbon monoxide detection device, and Fig. 3 is a circuit diagram showing a conventional resistance type gas sensor. It is. 1...Exhaust gas concentration detection device, 2...Resistive exhaust gas sensor, 4...Detection bridge circuit, 5...
Resistance value adjustment circuit, 5a... Intermediate connection point, 6... First changeover switch, 6a... Second changeover switch, 7
... Detector, 8 ... Standard device, 15 ... Reference variable resistor, 16 ... Dependent variable resistor, 20, 29 ...
Common terminal, 25, 30... Output terminal, 31, 32
...Fixed resistor.
Claims (1)
により抵抗変化が生ずる検知器の一端と、該検知
器の抵抗変化と対比させる抵抗値を有する標準器
の一端とを接続してなる抵抗式排気ガスセンサの
前記検知器の他端に基準可変抵抗器の一端を接続
し、かつ出力端子を分岐して形成し、前記標準器
の他端に従属可変抵抗器の一端を接続して、出力
電圧を発生する検出ブリツジ回路を形成し、前記
検知器と標準器の各一端が接続された箇所に、複
数の固定抵抗器でなる抵抗値調整回路の一端を接
続し、前記基準可変抵抗器の他端を共通端子とし
て前記抵抗値調整回路の他端と、前記従属可変抵
抗器の他端とを相互に切り換え可能に第一切換ス
イツチに接続し、該第一切換スイツチと連動する
第二切換スイツチに該第二切換スイツチの共通端
子から出力端子を形成して、該共通端子から前記
標準器の他端と、前記抵抗値調整回路の中間接続
点とを相互に切り換え可能に接続したことを特徴
とする排気ガス濃度検知装置。 A resistance type in which one end of a detector whose resistance changes due to reaction heat when carbon monoxide in exhaust gas oxidizes and one end of a standard device whose resistance value is compared with the resistance change of the detector are connected. One end of a reference variable resistor is connected to the other end of the detector of the exhaust gas sensor, an output terminal is branched, and one end of a dependent variable resistor is connected to the other end of the standard device to determine the output voltage. A detection bridge circuit is formed to generate a detection bridge circuit, and one end of a resistance value adjustment circuit consisting of a plurality of fixed resistors is connected to the point where one end of each of the detector and the standard device are connected, and one end of a resistance value adjustment circuit consisting of a plurality of fixed resistors is connected to the other end of the reference variable resistor. a second changeover switch that connects the other end of the resistance value adjustment circuit and the other end of the dependent variable resistor to a first changeover switch such that the other end of the resistance value adjustment circuit and the other end of the dependent variable resistor are mutually switchable with the other end being a common terminal, and that operates in conjunction with the first changeover switch; An output terminal is formed from the common terminal of the second changeover switch, and the common terminal is connected to the other end of the standard device and the intermediate connection point of the resistance value adjustment circuit in a mutually switchable manner. Exhaust gas concentration detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5871885U JPS61174660U (en) | 1985-04-19 | 1985-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5871885U JPS61174660U (en) | 1985-04-19 | 1985-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61174660U true JPS61174660U (en) | 1986-10-30 |
Family
ID=30584485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5871885U Pending JPS61174660U (en) | 1985-04-19 | 1985-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61174660U (en) |
-
1985
- 1985-04-19 JP JP5871885U patent/JPS61174660U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS627063U (en) | ||
| JPS61174660U (en) | ||
| JPS61118046U (en) | ||
| JPH02135871U (en) | ||
| JPS647432U (en) | ||
| JPS6276656U (en) | ||
| JPS62123533U (en) | ||
| JPS6262939U (en) | ||
| JPS63151016U (en) | ||
| JPH0438538U (en) | ||
| JPH02140377U (en) | ||
| JPH0221581U (en) | ||
| JPH0352643U (en) | ||
| JPH022337U (en) | ||
| JPH0330815U (en) | ||
| JPS6124613U (en) | detection device | |
| JPH0342580U (en) | ||
| JPH0416373U (en) | ||
| JPH0336952U (en) | ||
| JPS645159U (en) | ||
| JPH0312144U (en) | ||
| JPS61102955U (en) | ||
| JPH01117572U (en) | ||
| JPS61137231U (en) | ||
| JPS6123057U (en) | Oxygen deficiency detection circuit of hot air heater |