JPS6425718U - - Google Patents
Info
- Publication number
- JPS6425718U JPS6425718U JP12065587U JP12065587U JPS6425718U JP S6425718 U JPS6425718 U JP S6425718U JP 12065587 U JP12065587 U JP 12065587U JP 12065587 U JP12065587 U JP 12065587U JP S6425718 U JPS6425718 U JP S6425718U
- Authority
- JP
- Japan
- Prior art keywords
- light
- rotation angle
- receiving
- series
- normal
- 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
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Description
第１図は本考案のセンサ構造の一実施例を示し
た説明図、第２図は第１図のセンサチツプ及びそ
の信号処理回路の一実施例を示した説明図、第３
図は第２図のコントローラ入力信号の信号波形図
、第４図は本考案のセンサ構造の別の実施例を示
した説明図、第５，６図は従来例を示した説明図
である。
１：回転円板、２：開口スリツト、３：発光素
子、１０：センサチツプ、１１：受光部、１１ａ
，１１ｂ：フオトダイオード、１２ａ，１２ｂ：
受光回路、１４：ＯＲゲート、１５：コントロー
ラ。
FIG. 1 is an explanatory diagram showing one embodiment of the sensor structure of the present invention, FIG. 2 is an explanatory diagram showing one embodiment of the sensor chip of FIG. 1 and its signal processing circuit, and FIG.
4 is an explanatory diagram showing another embodiment of the sensor structure of the present invention, and FIGS. 5 and 6 are explanatory diagrams showing conventional examples. 1: Rotating disk, 2: Opening slit, 3: Light emitting element, 10: Sensor chip, 11: Light receiving part, 11a
, 11b: Photodiode, 12a, 12b:
Light receiving circuit, 14: OR gate, 15: controller.
Claims (1)
た開口スリツトによる透過光の受光出力に基づい
て回転角等を検出する回転角センサに於いて、 前記透過光の受光位置に回転方向に交互に配置
した少なくとも２系列の受光素子を有し系列内の
受光素子から得られる受光信号を信号処理して出
力する受光部と、受光信号が正常か否かを判別す
る判別部と、受光信号が正常な時は該受光部から
出力された２系列の受光信号の論理和による信号
に基づき、また異常な時は正常な受光信号に基づ
いて回転角等を検出する検出手段とを備えたこと
を特徴とする回転角センサ。[Claims for Utility Model Registration] In a rotation angle sensor that detects a rotation angle, etc. based on the received light output of transmitted light through aperture slits formed at predetermined pitch intervals in the circumferential direction of a rotating disk, A light-receiving unit has at least two series of light-receiving elements arranged alternately in the rotational direction at the light-receiving position, processes and outputs the light-receiving signals obtained from the light-receiving elements in the series, and determines whether the light-receiving signals are normal or not. A determination unit and a detection unit that detects the rotation angle, etc. based on a signal obtained by the logical sum of two series of light reception signals output from the light reception unit when the light reception signal is normal, and based on the normal light reception signal when it is abnormal. A rotation angle sensor comprising: means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12065587U JPS6425718U (en) | 1987-08-06 | 1987-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12065587U JPS6425718U (en) | 1987-08-06 | 1987-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6425718U true JPS6425718U (en) | 1989-02-13 |
Family
ID=31366954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12065587U Pending JPS6425718U (en) | 1987-08-06 | 1987-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6425718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146625A (en) * | 1998-11-04 | 2000-05-26 | Fuji Electric Co Ltd | Absolute encoder |
-
1987
- 1987-08-06 JP JP12065587U patent/JPS6425718U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146625A (en) * | 1998-11-04 | 2000-05-26 | Fuji Electric Co Ltd | Absolute encoder |
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