JPH0419481B2 - - Google Patents
Info
- Publication number
- JPH0419481B2 JPH0419481B2 JP11598686A JP11598686A JPH0419481B2 JP H0419481 B2 JPH0419481 B2 JP H0419481B2 JP 11598686 A JP11598686 A JP 11598686A JP 11598686 A JP11598686 A JP 11598686A JP H0419481 B2 JPH0419481 B2 JP H0419481B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output signal
- sensor
- sensor output
- hold
- 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
- 238000003708 edge detection Methods 0.000 claims description 32
- 230000003287 optical effect Effects 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 10
- 230000010363 phase shift Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11598686A JPS62272103A (ja) | 1986-05-20 | 1986-05-20 | 光学式測定機器におけるエツジ検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11598686A JPS62272103A (ja) | 1986-05-20 | 1986-05-20 | 光学式測定機器におけるエツジ検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62272103A JPS62272103A (ja) | 1987-11-26 |
| JPH0419481B2 true JPH0419481B2 (en]) | 1992-03-30 |
Family
ID=14676045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11598686A Granted JPS62272103A (ja) | 1986-05-20 | 1986-05-20 | 光学式測定機器におけるエツジ検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62272103A (en]) |
-
1986
- 1986-05-20 JP JP11598686A patent/JPS62272103A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62272103A (ja) | 1987-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |