JPS5723809A - Projector for wear measurement of trolley line - Google Patents
Projector for wear measurement of trolley lineInfo
- Publication number
- JPS5723809A JPS5723809A JP9755880A JP9755880A JPS5723809A JP S5723809 A JPS5723809 A JP S5723809A JP 9755880 A JP9755880 A JP 9755880A JP 9755880 A JP9755880 A JP 9755880A JP S5723809 A JPS5723809 A JP S5723809A
- Authority
- JP
- Japan
- Prior art keywords
- projected
- light receiving
- beams
- projector
- trolley line
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B11/046—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To remove disturbing light penetrating from the wall surface of a tunnel into a light receiving passage and increase the efficiency and operability of the entitled projector by using the characteristics or reflecting direction on the wall of tunnel and turning a projected beam to an inclined direction. CONSTITUTION:Projectos 10a and 10b are arranged on the right and left sides of a light receiving lens 8 and faced toward the inside so that the beam projected from these projectors 10a and 10b are intersected each other. The direction angle of projected beams is selected so as to match with the angle by which a half of the deflection range D of a trolley line can be irradiated. By adjusting the projection angle theta, the edges of beams projected from the projectors 10a and 10b are made to match with the center point C of the deflection range D. Since the projected beams are penetrated into the wall from the inclined direction, the penetration of reflected light into the light receiving passage can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9755880A JPS5723809A (en) | 1980-07-18 | 1980-07-18 | Projector for wear measurement of trolley line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9755880A JPS5723809A (en) | 1980-07-18 | 1980-07-18 | Projector for wear measurement of trolley line |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5723809A true JPS5723809A (en) | 1982-02-08 |
JPS6333082B2 JPS6333082B2 (en) | 1988-07-04 |
Family
ID=14195561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9755880A Granted JPS5723809A (en) | 1980-07-18 | 1980-07-18 | Projector for wear measurement of trolley line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5723809A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998008049A1 (en) * | 1996-08-23 | 1998-02-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Contact wire measuring device |
JP2007271446A (en) * | 2006-03-31 | 2007-10-18 | Meidensha Corp | Instrument for measuring abrasion in trolley wire by imaging processing |
JP2014119334A (en) * | 2012-12-17 | 2014-06-30 | Meidensha Corp | Wire measurement device |
-
1980
- 1980-07-18 JP JP9755880A patent/JPS5723809A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998008049A1 (en) * | 1996-08-23 | 1998-02-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Contact wire measuring device |
JP2007271446A (en) * | 2006-03-31 | 2007-10-18 | Meidensha Corp | Instrument for measuring abrasion in trolley wire by imaging processing |
JP2014119334A (en) * | 2012-12-17 | 2014-06-30 | Meidensha Corp | Wire measurement device |
Also Published As
Publication number | Publication date |
---|---|
JPS6333082B2 (en) | 1988-07-04 |
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