JPH0184069U - - Google Patents
Info
- Publication number
- JPH0184069U JPH0184069U JP1987178601U JP17860187U JPH0184069U JP H0184069 U JPH0184069 U JP H0184069U JP 1987178601 U JP1987178601 U JP 1987178601U JP 17860187 U JP17860187 U JP 17860187U JP H0184069 U JPH0184069 U JP H0184069U
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- rotational position
- signal
- light
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Transform (AREA)
Description
第１〜４図は本考案に係わる光学式回転位置検
出装置の第１の実施例を示すものであつて、第１
図はその概略構成図、第２図は回転円板の正面図
、第３図は受光部の正面図、第４図は受光素子の
出力波形とその波形を成形した波形示す説明図、
第５図は本考案の第２の実施例を示す概略構成図
、第６図は本考案の第３の実施例を示すものであ
つて、本考案をエンジンの回転計に適用した側面
図、第７〜９図は従来の光学式回転位置検出装置
を示すものであつて、第７図はその概略構成図、
第８図は回転円板の正面図および第９図は受光素
子の出力波形を示す説明図である。
１……シヤフト（回転体）、２……回転円板、
２０……マーク、２１……受光部、２４……光源
、２５……第１のコンパレータ、２６……第２の
コンパレータ、２７……微分回路、２８……処理
回路。
1 to 4 show a first embodiment of an optical rotational position detection device according to the present invention.
2 is a front view of the rotating disk, FIG. 3 is a front view of the light-receiving section, and FIG. 4 is an explanatory diagram showing the output waveform of the light-receiving element and a waveform formed from the waveform.
FIG. 5 is a schematic configuration diagram showing a second embodiment of the present invention, and FIG. 6 is a side view showing a third embodiment of the present invention, in which the present invention is applied to an engine tachometer. 7 to 9 show a conventional optical rotational position detection device, and FIG. 7 is a schematic configuration diagram thereof;
FIG. 8 is a front view of the rotating disk, and FIG. 9 is an explanatory diagram showing the output waveform of the light receiving element. 1...shaft (rotating body), 2... rotating disk,
20... mark, 21... light receiving section, 24... light source, 25... first comparator, 26... second comparator, 27... differentiating circuit, 28... processing circuit.
Claims (1)
る回転円板と、 前記回転円板のマークを有する面と間隔を保つ
て設けられ、かつ対向する面に第１の受光素子お
よび上記第１の受光素子近傍の円周上に所定間隔
毎に配置されそれぞれが電気的に接続された第２
の受光素子とを設けた受光部と、 前記回転円板および受光部間を照射する光源と
、 前記両受光素子の出力信号から基準信号および
回転信号を生成する信号生成手段と、 前記信号生成手段の出力信号から回転位置を演
算する処理手段と、 からなることを特徴とする光学式回転位置検出装
置。[Claims for Utility Model Registration] A rotating disk having a light-reflecting mark attached to a rotating body; and second light receiving elements arranged at predetermined intervals on the circumference near the first light receiving element and electrically connected to each other.
a light receiving section provided with a light receiving element; a light source that irradiates between the rotating disk and the light receiving section; a signal generating means for generating a reference signal and a rotation signal from the output signals of both the light receiving elements; and the signal generating means. An optical rotational position detection device comprising: processing means for calculating a rotational position from an output signal of the optical rotational position detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178601U JPH0184069U (en) | 1987-11-24 | 1987-11-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178601U JPH0184069U (en) | 1987-11-24 | 1987-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0184069U true JPH0184069U (en) | 1989-06-05 |
Family
ID=31470210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987178601U Pending JPH0184069U (en) | 1987-11-24 | 1987-11-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0184069U (en) |
-
1987
- 1987-11-24 JP JP1987178601U patent/JPH0184069U/ja active Pending
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