JPH0339109U - - Google Patents
Info
- Publication number
- JPH0339109U JPH0339109U JP9905789U JP9905789U JPH0339109U JP H0339109 U JPH0339109 U JP H0339109U JP 9905789 U JP9905789 U JP 9905789U JP 9905789 U JP9905789 U JP 9905789U JP H0339109 U JPH0339109 U JP H0339109U
- Authority
- JP
- Japan
- Prior art keywords
- receiving element
- light receiving
- crank angle
- output
- light
- 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
- 239000003990 capacitor Substances 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案の一実施例を示す回路構成図、
第２図は同上実施例の各部の波形図、第３図は従
来例の回路構成図、第４図は同上従来例の各部の
波形図である。
１……シグナルデイスクプレート、１ａ……ス
リツト、２……発光ダイオード、３……フオトダ
イオード、７……コンパレータ、８……トランジ
スタ、９……ＣＲ遅延回路。
FIG. 1 is a circuit diagram showing an embodiment of the present invention;
FIG. 2 is a waveform diagram of each part of the embodiment, FIG. 3 is a circuit configuration diagram of a conventional example, and FIG. 4 is a waveform diagram of each part of the conventional example. 1... Signal disk plate, 1a... Slit, 2... Light emitting diode, 3... Photo diode, 7... Comparator, 8... Transistor, 9... CR delay circuit.
Claims (1)
ツト付のシグナルデイスクプレートを挟んで発光
素子と受光素子とを対面配置し、発光素子からの
光を前記スリツトを介して間欠的に受光素子で検
出する構成とし、前記シグナルデイスクプレート
の回転に伴う受光素子の出力変化をコンパレータ
で基準値と比較することにより方形波に変換しク
ランク角信号として出力する光学式クランク角セ
ンサにおいて、前記コンパレータの一方の入力端
子に、前記受光素子の出力を直接入力し、他方の
入力端子に、前記受光素子の出力を抵抗とコンデ
ンサからなるＣＲ遅延回路のコンデンサ端子電圧
に変換して前記基準値として入力する構成とした
ことを特徴とする光学式クランク角センサ。 A light emitting element and a light receiving element are arranged facing each other across a signal disk plate with a slit that rotates in conjunction with the crankshaft of the internal combustion engine, and light from the light emitting element is intermittently detected by the light receiving element via the slit. In the optical crank angle sensor, the change in the output of the light receiving element accompanying the rotation of the signal disk plate is compared with a reference value by a comparator, thereby converting it into a square wave and outputting it as a crank angle signal. The output of the light receiving element is directly input to the terminal, and the output of the light receiving element is converted to a capacitor terminal voltage of a CR delay circuit consisting of a resistor and a capacitor and inputted as the reference value to the other input terminal. An optical crank angle sensor characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9905789U JPH0339109U (en) | 1989-08-28 | 1989-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9905789U JPH0339109U (en) | 1989-08-28 | 1989-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0339109U true JPH0339109U (en) | 1991-04-16 |
Family
ID=31648120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9905789U Pending JPH0339109U (en) | 1989-08-28 | 1989-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339109U (en) |
-
1989
- 1989-08-28 JP JP9905789U patent/JPH0339109U/ja active Pending
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