JPS57163851A - Optical fiber - Google Patents

Optical fiber

Info

Publication number
JPS57163851A
JPS57163851A JP4887281A JP4887281A JPS57163851A JP S57163851 A JPS57163851 A JP S57163851A JP 4887281 A JP4887281 A JP 4887281A JP 4887281 A JP4887281 A JP 4887281A JP S57163851 A JPS57163851 A JP S57163851A
Authority
JP
Japan
Prior art keywords
fiber
projection
measured
photodetection
luminous flux
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
JP4887281A
Other languages
Japanese (ja)
Other versions
JPH0121884B2 (en
Inventor
Ichiro Inazaki
Sakae Yonezu
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.)
Mitsutoyo Manufacturing Co Ltd
Original Assignee
Mitsutoyo Manufacturing 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 Mitsutoyo Manufacturing Co Ltd filed Critical Mitsutoyo Manufacturing Co Ltd
Priority to JP4887281A priority Critical patent/JPS57163851A/en
Publication of JPS57163851A publication Critical patent/JPS57163851A/en
Publication of JPH0121884B2 publication Critical patent/JPH0121884B2/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
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To detect the state of a body to be measured with removing the influence of its surface reflectivity, by providing a photodetection fiber which adjoins to a projection fiber in parallel, and another photodetection fiber which a certain angle to the projection fiber. CONSTITUTION:A projection fiber 3 is so provided that a light beam for measurement illuminates the surface of a body 2 to be measured at right angles. Then, the center axial line of photodetection luminous flux is in parallel to that of projection luminous flux from a fiber 3 for projection and also crosses the center axial lines of projection luminous flux of the projection fiber 3 and a photodetection fiber 4, arranged adjacently, at an angle theta (15-40 degrees) on the surface of the body to be measured 2, thus providing the 2nd projection fiber 5 in one body. Consequently, interference of light due to one projector is eliminated and the influence of reflectivity depending upon the material of the body to be measured is also eliminated, thereby measuring an accurate surface state, e.g. the roughness of the cut surface of a ground material in the process of cutting.
JP4887281A 1981-04-01 1981-04-01 Optical fiber Granted JPS57163851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4887281A JPS57163851A (en) 1981-04-01 1981-04-01 Optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4887281A JPS57163851A (en) 1981-04-01 1981-04-01 Optical fiber

Publications (2)

Publication Number Publication Date
JPS57163851A true JPS57163851A (en) 1982-10-08
JPH0121884B2 JPH0121884B2 (en) 1989-04-24

Family

ID=12815373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4887281A Granted JPS57163851A (en) 1981-04-01 1981-04-01 Optical fiber

Country Status (1)

Country Link
JP (1) JPS57163851A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143908A (en) * 1983-02-07 1984-08-17 Mitsutoyo Mfg Co Ltd Surface roughness detecting device
JPS59143909A (en) * 1983-02-07 1984-08-17 Mitsutoyo Mfg Co Ltd Surface roughness detecting method
US10571244B2 (en) 2017-11-13 2020-02-25 Rolls-Royce Plc Measuring surface roughness

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143908A (en) * 1983-02-07 1984-08-17 Mitsutoyo Mfg Co Ltd Surface roughness detecting device
JPS59143909A (en) * 1983-02-07 1984-08-17 Mitsutoyo Mfg Co Ltd Surface roughness detecting method
JPH0151124B2 (en) * 1983-02-07 1989-11-01 Mitutoyo Corp
JPH0153722B2 (en) * 1983-02-07 1989-11-15 Mitutoyo Corp
US10571244B2 (en) 2017-11-13 2020-02-25 Rolls-Royce Plc Measuring surface roughness

Also Published As

Publication number Publication date
JPH0121884B2 (en) 1989-04-24

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