JPS5722511A - Pulse encoder - Google Patents

Pulse encoder

Info

Publication number
JPS5722511A
JPS5722511A JP9681080A JP9681080A JPS5722511A JP S5722511 A JPS5722511 A JP S5722511A JP 9681080 A JP9681080 A JP 9681080A JP 9681080 A JP9681080 A JP 9681080A JP S5722511 A JPS5722511 A JP S5722511A
Authority
JP
Japan
Prior art keywords
light
optical fiber
disc
external
focussed
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
JP9681080A
Other languages
Japanese (ja)
Inventor
Yoshitoku Kozai
Yoichi Amamiya
Sunao Asahara
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc 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 Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP9681080A priority Critical patent/JPS5722511A/en
Publication of JPS5722511A publication Critical patent/JPS5722511A/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)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To remove influence of the working temperature condition and electrical noises, improve reliability and reduce occupied volume, by receiving light transmitted through a slit disc with an optical fiber and by sending it directly to an external optical detector. CONSTITUTION:Light from an external light-emitting element 14 enters a light- emitting lens 8 via an optical fiber 16 and is focussed to irradiate a slit disc 6. Among irradiation light, light that passes through a fixed slit 12 is focussed with a light-receiving lens 10, enters an optical fiber 20 and is transmitted to an external optical detecting element 18. Accordingly, the output signal from the element 18 changes to a pulse signal whose number corresponds to the amount of revolutions of the disc 6. In this case, the body 2 of an pulse encoder is incorporated into, for instance, a servo motor.
JP9681080A 1980-07-17 1980-07-17 Pulse encoder Pending JPS5722511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9681080A JPS5722511A (en) 1980-07-17 1980-07-17 Pulse encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9681080A JPS5722511A (en) 1980-07-17 1980-07-17 Pulse encoder

Publications (1)

Publication Number Publication Date
JPS5722511A true JPS5722511A (en) 1982-02-05

Family

ID=14174949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9681080A Pending JPS5722511A (en) 1980-07-17 1980-07-17 Pulse encoder

Country Status (1)

Country Link
JP (1) JPS5722511A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167916A (en) * 1982-03-30 1983-10-04 Fanuc Ltd Pulse encoder
JPS595217A (en) * 1982-07-02 1984-01-12 Fanuc Ltd Pulse encoder using optical fiber
JPS59120416U (en) * 1983-02-02 1984-08-14 アルプス電気株式会社 rotary encoder
JPS6037813U (en) * 1983-08-22 1985-03-15 昭和電線電纜株式会社 optical rotary sensor
JPS6055225A (en) * 1983-09-06 1985-03-30 Shoketsu Kinzoku Kogyo Co Ltd Rotary encoder
JPS6140510A (en) * 1984-07-31 1986-02-26 Derufuai:Kk Encoder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167916A (en) * 1982-03-30 1983-10-04 Fanuc Ltd Pulse encoder
JPS595217A (en) * 1982-07-02 1984-01-12 Fanuc Ltd Pulse encoder using optical fiber
JPS59120416U (en) * 1983-02-02 1984-08-14 アルプス電気株式会社 rotary encoder
JPS6037813U (en) * 1983-08-22 1985-03-15 昭和電線電纜株式会社 optical rotary sensor
JPS6055225A (en) * 1983-09-06 1985-03-30 Shoketsu Kinzoku Kogyo Co Ltd Rotary encoder
JPS6140510A (en) * 1984-07-31 1986-02-26 Derufuai:Kk Encoder

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