JPH044267U - - Google Patents
Info
- Publication number
- JPH044267U JPH044267U JP4545490U JP4545490U JPH044267U JP H044267 U JPH044267 U JP H044267U JP 4545490 U JP4545490 U JP 4545490U JP 4545490 U JP4545490 U JP 4545490U JP H044267 U JPH044267 U JP H044267U
- Authority
- JP
- Japan
- Prior art keywords
- alcohol concentration
- detects
- electrodes
- frequency
- detection device
- 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
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本考案実施例のアルコール濃度検出装
置を示す回路図、第２図は実施例装置の信号の波
形を示すタイムチヤート、第３図は実施例装置の
インピーダンスの周波数−変動率特性を示すグラ
フである。
１０……アルコール濃度センサ（センサ部）、
２０……第１発振回路。
Fig. 1 is a circuit diagram showing an alcohol concentration detection device according to an embodiment of the present invention, Fig. 2 is a time chart showing a signal waveform of the embodiment device, and Fig. 3 is a frequency-variation rate characteristic of impedance of the embodiment device. This is a graph showing. 10...Alcohol concentration sensor (sensor part),
20...first oscillation circuit.
Claims (1)
を有し、この電極間の静電容量を検出するセンサ
部と、該センサ部で検出される静電容量に応じた
周波数で発振する発振回路とを備え、前記発振周
波数に基づきアルコール濃度を検出するようにし
たアルコール濃度検出装置において、 前記発振回路の発振周波数を１ＭＨｚ〜５ＭＨ
ｚの範囲内に設定したことを特徴とするアルコー
ル濃度検出装置。[Claims for Utility Model Registration] A sensor unit that has a pair of electrodes immersed in alcohol-containing fuel and detects the capacitance between the electrodes, and a sensor unit that detects the capacitance between the electrodes, and An oscillation circuit that oscillates at a frequency, and an alcohol concentration detection device that detects alcohol concentration based on the oscillation frequency, wherein the oscillation frequency of the oscillation circuit is 1 MHz to 5 MHz.
An alcohol concentration detection device characterized in that the alcohol concentration is set within the range of z.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4545490U JPH044267U (en) | 1990-04-27 | 1990-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4545490U JPH044267U (en) | 1990-04-27 | 1990-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044267U true JPH044267U (en) | 1992-01-16 |
Family
ID=31559645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4545490U Pending JPH044267U (en) | 1990-04-27 | 1990-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044267U (en) |
-
1990
- 1990-04-27 JP JP4545490U patent/JPH044267U/ja active Pending
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