JPS57141560A - Detector for travelling object - Google Patents
Detector for travelling objectInfo
- Publication number
- JPS57141560A JPS57141560A JP2779981A JP2779981A JPS57141560A JP S57141560 A JPS57141560 A JP S57141560A JP 2779981 A JP2779981 A JP 2779981A JP 2779981 A JP2779981 A JP 2779981A JP S57141560 A JPS57141560 A JP S57141560A
- Authority
- JP
- Japan
- Prior art keywords
- detector
- travelling
- speed
- light receiving
- distance
- 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
- 238000003491 array Methods 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000010363 phase shift Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2779981A JPS57141560A (en) | 1981-02-26 | 1981-02-26 | Detector for travelling object |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2779981A JPS57141560A (en) | 1981-02-26 | 1981-02-26 | Detector for travelling object |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57141560A true JPS57141560A (en) | 1982-09-01 |
Family
ID=12231017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2779981A Pending JPS57141560A (en) | 1981-02-26 | 1981-02-26 | Detector for travelling object |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57141560A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0516301A2 (en) * | 1991-05-31 | 1992-12-02 | Lucas Industries Public Limited Company | Apparatus for measuring speed |
-
1981
- 1981-02-26 JP JP2779981A patent/JPS57141560A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0516301A2 (en) * | 1991-05-31 | 1992-12-02 | Lucas Industries Public Limited Company | Apparatus for measuring speed |
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