JPS57179606A - Optical displacement gage - Google Patents

Optical displacement gage

Info

Publication number
JPS57179606A
JPS57179606A JP6410981A JP6410981A JPS57179606A JP S57179606 A JPS57179606 A JP S57179606A JP 6410981 A JP6410981 A JP 6410981A JP 6410981 A JP6410981 A JP 6410981A JP S57179606 A JPS57179606 A JP S57179606A
Authority
JP
Japan
Prior art keywords
light
measured
lens
light receiving
fiber
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
Application number
JP6410981A
Other languages
Japanese (ja)
Inventor
Yoshikazu Nishiwaki
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP6410981A priority Critical patent/JPS57179606A/en
Publication of JPS57179606A publication Critical patent/JPS57179606A/en
Pending 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
    • G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE:To measure the displacement of an object to be measured even though the object to be measured is placed on the part where the rate of change in a light receiving level is large, by emitting parallel light from a lens to the object to be measured, elongating the light emitting distance, and detecting the reflected light. CONSTITUTION:The emitted beam from a light transmitting fiber 2 is converted into the parallel beam by the lens 8 and irradiated on the object to be measured 6. The reflected light is converged on an end surface 7 of a light receiving fiber 3 by a lens 9. An optical axis adjusting mechanism 10 is adjusted, and an angle theta formed by the light transmitting system comprising the light transmitting fiber 2 and the lens 8 and the light receiving system comprising the light receiving fiber 3 and the lens 9 is determined so that the light receiving level becomes the maximum when a distance l is a specified value. Thus the displacement of the object to be measured is measured.
JP6410981A 1981-04-30 1981-04-30 Optical displacement gage Pending JPS57179606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6410981A JPS57179606A (en) 1981-04-30 1981-04-30 Optical displacement gage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6410981A JPS57179606A (en) 1981-04-30 1981-04-30 Optical displacement gage

Publications (1)

Publication Number Publication Date
JPS57179606A true JPS57179606A (en) 1982-11-05

Family

ID=13248572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6410981A Pending JPS57179606A (en) 1981-04-30 1981-04-30 Optical displacement gage

Country Status (1)

Country Link
JP (1) JPS57179606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624570A (en) * 1984-08-31 1986-11-25 General Motors Corporation Fiber optic displacement sensor
JP2007024826A (en) * 2005-07-21 2007-02-01 Fujikura Ltd Optical detection sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624570A (en) * 1984-08-31 1986-11-25 General Motors Corporation Fiber optic displacement sensor
JP2007024826A (en) * 2005-07-21 2007-02-01 Fujikura Ltd Optical detection sensor

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