JPS56111419A - Optical position detector - Google Patents

Optical position detector

Info

Publication number
JPS56111419A
JPS56111419A JP1433480A JP1433480A JPS56111419A JP S56111419 A JPS56111419 A JP S56111419A JP 1433480 A JP1433480 A JP 1433480A JP 1433480 A JP1433480 A JP 1433480A JP S56111419 A JPS56111419 A JP S56111419A
Authority
JP
Japan
Prior art keywords
indication piece
light
photodetector
constitution
optical 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
JP1433480A
Other languages
Japanese (ja)
Inventor
Ichiro Wada
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1433480A priority Critical patent/JPS56111419A/en
Publication of JPS56111419A publication Critical patent/JPS56111419A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices
    • G01D5/34723—Scale reading or illumination devices involving light-guides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To perform position detection with high precision by detecting optically the position of a moving body, moving in proportion to a process variable, to using optical fibers. CONSTITUTION:Optical fiber 14 havin projetor 19 and projection window 15 and optical fiber 17 having photodetection window 18, photodetector 20 and measuring circuit 21 are provided. At the external periphery of a measuring instrument, scale mirrors M1, M2... and indication piece 11 made of a nonreflective material rotating along the external periphery are provided. Further, reflective mirror M0 is fitted to body 12 rotating at a prescribed speed. In this constitution, scanning scale mirrors M1... with light from projector 19 outputs a pulse signal to photodetector 20 when the reflected light is in direction Z, so that measuring circuit will start count operation. Then, the light is not reflected at indication piece 11 and the count operation of circuit 21 stops. The count value up to this point in time indicates the distance of rotation of indication piece 11. Therefore, the measurment value can be known immediately by previously bearing the relation between the count value and meas
JP1433480A 1980-02-08 1980-02-08 Optical position detector Pending JPS56111419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1433480A JPS56111419A (en) 1980-02-08 1980-02-08 Optical position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1433480A JPS56111419A (en) 1980-02-08 1980-02-08 Optical position detector

Publications (1)

Publication Number Publication Date
JPS56111419A true JPS56111419A (en) 1981-09-03

Family

ID=11858161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1433480A Pending JPS56111419A (en) 1980-02-08 1980-02-08 Optical position detector

Country Status (1)

Country Link
JP (1) JPS56111419A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189410A (en) * 1983-04-12 1984-10-27 Chino Works Ltd Program signal generating device
JPS59189409A (en) * 1983-04-12 1984-10-27 Chino Works Ltd Program signal generating device
JPS59189408A (en) * 1983-04-12 1984-10-27 Chino Works Ltd Program signal generating device
JPS60168203A (en) * 1984-02-10 1985-08-31 Mitsubishi Electric Corp Numerical control device
JPS62194759U (en) * 1986-06-02 1987-12-11
CN105157621A (en) * 2015-08-26 2015-12-16 无锡双益精密机械有限公司 Bearing contact angle detection device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189410A (en) * 1983-04-12 1984-10-27 Chino Works Ltd Program signal generating device
JPS59189409A (en) * 1983-04-12 1984-10-27 Chino Works Ltd Program signal generating device
JPS59189408A (en) * 1983-04-12 1984-10-27 Chino Works Ltd Program signal generating device
JPS60168203A (en) * 1984-02-10 1985-08-31 Mitsubishi Electric Corp Numerical control device
JPS62194759U (en) * 1986-06-02 1987-12-11
JPH0613258Y2 (en) * 1986-06-02 1994-04-06 東芝機械株式会社 Susceptor rotation position detector for vapor phase growth equipment
CN105157621A (en) * 2015-08-26 2015-12-16 无锡双益精密机械有限公司 Bearing contact angle detection device

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