JPH01168872U - - Google Patents
Info
- Publication number
- JPH01168872U JPH01168872U JP6669588U JP6669588U JPH01168872U JP H01168872 U JPH01168872 U JP H01168872U JP 6669588 U JP6669588 U JP 6669588U JP 6669588 U JP6669588 U JP 6669588U JP H01168872 U JPH01168872 U JP H01168872U
- Authority
- JP
- Japan
- Prior art keywords
- light
- sensing section
- rotation
- sensing
- rotating body
- 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 5
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Description
第１図は、この考案の回転検出装置の一実施例
を示す概略構成図、第２図は、第１図に示した回
路各部の信号波形図、第３図は、第１図に示した
環状帯の他の実施例を示す平面図、第４図は、従
来の回転検出装置の一例を示す概略構成図である
。
３……回転体、５……フオトインタラプタ、１
１……回転検出装置、１２，２２……環状帯、１
３，１４，１５，２３……感知部、１６，１７，
１８，２４……非感知部。
Fig. 1 is a schematic configuration diagram showing one embodiment of the rotation detection device of this invention, Fig. 2 is a signal waveform diagram of each part of the circuit shown in Fig. 1, and Fig. 3 is a diagram showing the signal waveforms of each part of the circuit shown in Fig. 1. FIG. 4, a plan view showing another embodiment of the annular band, is a schematic configuration diagram showing an example of a conventional rotation detection device. 3...Rotating body, 5...Photo interrupter, 1
1... Rotation detection device, 12, 22... Annular band, 1
3, 14, 15, 23...sensing section, 16, 17,
18, 24...Non-sensing section.
Claims (1)
感知部とそうでない非感知部とを交互に配置し、
外部から照射した光のうち感知部を感知した光の
受光周期から、前記回転体の回転を検出する回転
検出装置であつて、感知部とその隣接感知部又は
非感知部とその隣接非感知部の周長を異ならしめ
て形成した環状帯と、この環状帯に形成された感
知部を感知した光の受光パターンから、回転体の
回転方向を判別する回転方向判別回路とを設けて
なる回転検出装置。 Sensing parts that can sense light and non-sensing parts that can't sense light are arranged alternately around the rotation axis of the rotating body,
A rotation detection device that detects the rotation of the rotating body based on the light reception period of light that is sensed by the sensing section out of light irradiated from the outside, the device comprising a sensing section and its adjacent sensing section, or a non-sensing section and its adjacent non-sensing section. A rotation detection device comprising: an annular band formed with different circumferential lengths; and a rotation direction determination circuit that determines the rotation direction of a rotating body from a light reception pattern of light detected by a sensing section formed on the annular band. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6669588U JPH01168872U (en) | 1988-05-20 | 1988-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6669588U JPH01168872U (en) | 1988-05-20 | 1988-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01168872U true JPH01168872U (en) | 1989-11-28 |
Family
ID=31292091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6669588U Pending JPH01168872U (en) | 1988-05-20 | 1988-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01168872U (en) |
-
1988
- 1988-05-20 JP JP6669588U patent/JPH01168872U/ja active Pending