JPS5780519A - Optical digital length measuring device - Google Patents

Optical digital length measuring device

Info

Publication number
JPS5780519A
JPS5780519A JP15660980A JP15660980A JPS5780519A JP S5780519 A JPS5780519 A JP S5780519A JP 15660980 A JP15660980 A JP 15660980A JP 15660980 A JP15660980 A JP 15660980A JP S5780519 A JPS5780519 A JP S5780519A
Authority
JP
Japan
Prior art keywords
signal
optical
optical signal
transmitted
glass 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
JP15660980A
Other languages
Japanese (ja)
Inventor
Toshiaki Tanaka
Koji Akamatsu
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15660980A priority Critical patent/JPS5780519A/en
Publication of JPS5780519A publication Critical patent/JPS5780519A/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

Abstract

PURPOSE:To improve noise resisting property by transmitting the light which has been transmitted through a slit by optical glass fiber and the like as an optical signal, and converting the optical signal to the electrical signal at a terminating end. CONSTITUTION:The optical signal which has been transmitted through a slide 1 and a slit 3c is inputted into the optical glass fiber 8, and transmitted through the optical glass fiber 8 as a transmission path. Only the optical signal is handled in a head part 2 as a signal. No shield is required in the head part 2 since te optical signal is not affected by external noises. The intact optical signal itself is transmitted in the transmission path of the glass fiber, and converted into the electrical signal at a location where the noise intensity is low. Therefore the signal is not subjected to the external noises. In this constitution, the noise resisting property can be improved.
JP15660980A 1980-11-07 1980-11-07 Optical digital length measuring device Pending JPS5780519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15660980A JPS5780519A (en) 1980-11-07 1980-11-07 Optical digital length measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15660980A JPS5780519A (en) 1980-11-07 1980-11-07 Optical digital length measuring device

Publications (1)

Publication Number Publication Date
JPS5780519A true JPS5780519A (en) 1982-05-20

Family

ID=15631472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15660980A Pending JPS5780519A (en) 1980-11-07 1980-11-07 Optical digital length measuring device

Country Status (1)

Country Link
JP (1) JPS5780519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174018U (en) * 1988-03-03 1988-11-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174018U (en) * 1988-03-03 1988-11-11

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