JPS5723809A - Projector for wear measurement of trolley line - Google Patents

Projector for wear measurement of trolley line

Info

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
Application number
JP9755880A
Other languages
Japanese (ja)
Other versions
JPS6333082B2 (en
Inventor
Takashi Hichiwa
Shinji Abe
Hiroshi Gamagahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JAPANESE NATIONAL RAILWAYS<JNR>
Hitachi Ltd
Japan National Railways
Hitachi High Tech Corp
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Hitachi Ltd
Japan National Railways
Hitachi Electronics Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JAPANESE NATIONAL RAILWAYS<JNR>, Hitachi Ltd, Japan National Railways, Hitachi Electronics Engineering Co Ltd filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP9755880A priority Critical patent/JPS5723809A/en
Publication of JPS5723809A publication Critical patent/JPS5723809A/en
Publication of JPS6333082B2 publication Critical patent/JPS6333082B2/ja
Granted legal-status Critical Current

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.
JP9755880A 1980-07-18 1980-07-18 Projector for wear measurement of trolley line Granted JPS5723809A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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