JPH0143243B2 - - Google Patents
Info
- Publication number
- JPH0143243B2 JPH0143243B2 JP15581478A JP15581478A JPH0143243B2 JP H0143243 B2 JPH0143243 B2 JP H0143243B2 JP 15581478 A JP15581478 A JP 15581478A JP 15581478 A JP15581478 A JP 15581478A JP H0143243 B2 JPH0143243 B2 JP H0143243B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- sensor
- code plate
- point
- pitch
- 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.)
- Expired
Links
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000002834 transmittance Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 23
- 230000003287 optical effect Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 8
- 239000011295 pitch Substances 0.000 description 7
- 238000011000 absolute method Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Optical Transform (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15581478A JPS5582918A (en) | 1978-12-19 | 1978-12-19 | Encoder |
| DE7979302233T DE2967525D1 (en) | 1978-12-19 | 1979-10-16 | Encoder for length or angle measuring devices with high accuracy |
| EP79302233A EP0013799B1 (en) | 1978-12-19 | 1979-10-16 | Encoder for length or angle measuring devices with high accuracy |
| US06/626,608 US4529964A (en) | 1978-12-19 | 1984-07-06 | Encoder for length or angle measuring device with high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15581478A JPS5582918A (en) | 1978-12-19 | 1978-12-19 | Encoder |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11305884A Division JPS6076611A (ja) | 1984-06-04 | 1984-06-04 | エンコ−ダ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5582918A JPS5582918A (en) | 1980-06-23 |
| JPH0143243B2 true JPH0143243B2 (zh) | 1989-09-19 |
Family
ID=15614049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15581478A Granted JPS5582918A (en) | 1978-12-19 | 1978-12-19 | Encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5582918A (zh) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141513A (en) * | 1980-04-04 | 1981-11-05 | Toshiba Corp | Encoder |
| JPS57104815A (en) * | 1980-12-20 | 1982-06-30 | Asahi Optical Co Ltd | Angle measuring apparatus employing line sensor |
| JPS57116214A (en) * | 1981-01-12 | 1982-07-20 | Asahi Optical Co Ltd | Angle-measuring device by use of circular photosensor array |
| JPS5952706A (ja) * | 1982-09-20 | 1984-03-27 | Shimadzu Corp | 変位測定方法 |
| US4560870A (en) * | 1983-08-22 | 1985-12-24 | Tokyo Shibaura Denki Kabushiki Kaisha | Graticule sensor having a plurality of light detectors |
| JPS6438521U (zh) * | 1987-09-02 | 1989-03-08 |
-
1978
- 1978-12-19 JP JP15581478A patent/JPS5582918A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5582918A (en) | 1980-06-23 |
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