JPS6466516A - Pulse generator - Google Patents
Pulse generatorInfo
- Publication number
- JPS6466516A JPS6466516A JP62223449A JP22344987A JPS6466516A JP S6466516 A JPS6466516 A JP S6466516A JP 62223449 A JP62223449 A JP 62223449A JP 22344987 A JP22344987 A JP 22344987A JP S6466516 A JPS6466516 A JP S6466516A
- Authority
- JP
- Japan
- Prior art keywords
- reflecting surface
- detected
- pulse generator
- rotor
- height
- 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
Landscapes
- Optical Transform (AREA)
Abstract
PURPOSE:To achieve a higher S/N ratio, by a method wherein a surface to be detected comprising a reflecting surface and a non-reflecting surface not the same in the height is provided at a part of an external surface of a rotor to be detected and a light emitting element and a light receiving element are arranged toward the surface being detected. CONSTITUTION:A light emitting element and a light receiving element are arranged toward a surface of a rotor 1 intended to detect a position of rotation, revolutions or the like which has a surface to be detected comprising a reflecting surface 2 and a non-reflecting surface 3 not the same in the height as provided at a part of the external thereof. Then, a step between the reflecting surface 2 and the non-reflecting surface 3 is above about 0.4mm. In a pulse generator thus arranged, the reflecting surface 2 passes at a distance of d0(=d'0+e) from a reflection type photosensor 4 while the non-reflecting surface 3 passes at a distance of d'0(=d0-e), thereby enabling the obtaining of a high S/N with limited effect of extraneous light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62223449A JPS6466516A (en) | 1987-09-07 | 1987-09-07 | Pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62223449A JPS6466516A (en) | 1987-09-07 | 1987-09-07 | Pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6466516A true JPS6466516A (en) | 1989-03-13 |
Family
ID=16798316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62223449A Pending JPS6466516A (en) | 1987-09-07 | 1987-09-07 | Pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6466516A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6080770A (en) * | 1983-10-08 | 1985-05-08 | Alps Electric Co Ltd | Production of revolution detector |
-
1987
- 1987-09-07 JP JP62223449A patent/JPS6466516A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6080770A (en) * | 1983-10-08 | 1985-05-08 | Alps Electric Co Ltd | Production of revolution detector |
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