JPH01145953U - - Google Patents
Info
- Publication number
- JPH01145953U JPH01145953U JP4101888U JP4101888U JPH01145953U JP H01145953 U JPH01145953 U JP H01145953U JP 4101888 U JP4101888 U JP 4101888U JP 4101888 U JP4101888 U JP 4101888U JP H01145953 U JPH01145953 U JP H01145953U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- capacitive
- fuel sensor
- circuit
- sensor
- 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
- 239000000446 fuel Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は、本考案の一実施例を示す回路図、第
２図は、同上実施例の出力特性を示す線図である
。
１…静電容量型燃料センサ、５…インターバル
電源、７…サンプルホールド回路。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing output characteristics of the same embodiment. 1...Capacitive fuel sensor, 5...Interval power supply, 7...Sample hold circuit.
Claims (1)
出することにより、燃料の種類若しくは混合され
た異種類の燃料の混合割合を検出する静電容量型
燃料センサからの信号を処理する回路において、
所定時間置きに静電容量型燃量センサの電極へ短
時間ずつ通電するインターバル電源と、該静電容
量型燃料センサへの通電毎に検出される検出結果
を更新保持するサンプルホールド回路とを含んで
構成したことを特徴とする静電容量型燃料センサ
の信号処理回路。 A circuit that processes signals from a capacitive fuel sensor that detects the type of fuel or the mixing ratio of different types of fuel by detecting changes in capacitance between electrodes immersed in the fuel. In,
It includes an interval power source that energizes the electrodes of the capacitive fuel sensor for short periods of time at predetermined intervals, and a sample hold circuit that updates and holds the detection results detected each time the capacitive fuel sensor is energized. A signal processing circuit for a capacitive fuel sensor, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4101888U JPH01145953U (en) | 1988-03-30 | 1988-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4101888U JPH01145953U (en) | 1988-03-30 | 1988-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01145953U true JPH01145953U (en) | 1989-10-06 |
Family
ID=31267470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4101888U Pending JPH01145953U (en) | 1988-03-30 | 1988-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01145953U (en) |
-
1988
- 1988-03-30 JP JP4101888U patent/JPH01145953U/ja active Pending