JPH028671B2 - - Google Patents
Info
- Publication number
- JPH028671B2 JPH028671B2 JP59132781A JP13278184A JPH028671B2 JP H028671 B2 JPH028671 B2 JP H028671B2 JP 59132781 A JP59132781 A JP 59132781A JP 13278184 A JP13278184 A JP 13278184A JP H028671 B2 JPH028671 B2 JP H028671B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reference signal
- reflected
- positions
- threshold
- 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
- 238000001514 detection method Methods 0.000 claims description 64
- 238000006073 displacement reaction Methods 0.000 claims description 51
- 230000003287 optical effect Effects 0.000 claims description 31
- 238000005259 measurement Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 14
- 230000000875 corresponding effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 238000003708 edge detection Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 3
- 238000011549 displacement method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
- Radar Systems Or Details Thereof (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59132781A JPS6111684A (ja) | 1984-06-27 | 1984-06-27 | 光学式表面変位検出回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59132781A JPS6111684A (ja) | 1984-06-27 | 1984-06-27 | 光学式表面変位検出回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6111684A JPS6111684A (ja) | 1986-01-20 |
| JPH028671B2 true JPH028671B2 (en]) | 1990-02-26 |
Family
ID=15089392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59132781A Granted JPS6111684A (ja) | 1984-06-27 | 1984-06-27 | 光学式表面変位検出回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6111684A (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6531502B2 (ja) * | 2015-06-11 | 2019-06-19 | 株式会社リコー | 光走査装置、物体検出装置及びセンシング装置 |
-
1984
- 1984-06-27 JP JP59132781A patent/JPS6111684A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6111684A (ja) | 1986-01-20 |
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