JPS57128814A - Position detector - Google Patents

Position detector

Info

Publication number
JPS57128814A
JPS57128814A JP1544681A JP1544681A JPS57128814A JP S57128814 A JPS57128814 A JP S57128814A JP 1544681 A JP1544681 A JP 1544681A JP 1544681 A JP1544681 A JP 1544681A JP S57128814 A JPS57128814 A JP S57128814A
Authority
JP
Japan
Prior art keywords
encoder
disc
accurate positioning
adjustment
rotary disc
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
JP1544681A
Other languages
Japanese (ja)
Other versions
JPS6041289B2 (en
Inventor
Mamoru Imaizumi
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.)
Brother Industries Ltd
Original Assignee
Brother 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP1544681A priority Critical patent/JPS6041289B2/en
Publication of JPS57128814A publication Critical patent/JPS57128814A/en
Publication of JPS6041289B2 publication Critical patent/JPS6041289B2/en
Expired 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
    • G01D5/3473—Circular or rotary encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To facilitate accurate positioning adjustment and to improve productivity by making an encoder movable and adjustable along the circumference centering at the rotating axis of a rotary disc. CONSTITUTION:After set screws 11 are loosened, an encoder 10 is moved while the projections 13 of the encoder 10 are engaged in the annular grooves 7 provided around the center of rotation of a rotary disc 2 on the fitting surface 6, by which the output waveform thereof is adjusted to a prescribed value, thence the screws 11 are tightened. At this time, there is no need for turning and adjusting the positions of a revolving shaft 1a and the disc 2; hence, the adjustment is made while the gap betwen the disc 2 and the encoder 10 is maintained constant. Thereby, the accurate positioning adjustment is made easy and productivity is made high.
JP1544681A 1981-02-04 1981-02-04 position detector Expired JPS6041289B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1544681A JPS6041289B2 (en) 1981-02-04 1981-02-04 position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1544681A JPS6041289B2 (en) 1981-02-04 1981-02-04 position detector

Publications (2)

Publication Number Publication Date
JPS57128814A true JPS57128814A (en) 1982-08-10
JPS6041289B2 JPS6041289B2 (en) 1985-09-14

Family

ID=11889028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1544681A Expired JPS6041289B2 (en) 1981-02-04 1981-02-04 position detector

Country Status (1)

Country Link
JP (1) JPS6041289B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228920A (en) * 1984-04-26 1985-11-14 Matsushita Electric Ind Co Ltd Optical type encoder
WO1986002441A1 (en) * 1984-10-19 1986-04-24 Fanuc Ltd Optical rotary encoder
EP0191110A1 (en) * 1984-08-16 1986-08-20 Fanuc Ltd. Optical rotary encoder and a method of assembling the same
US4718879A (en) * 1985-06-07 1988-01-12 Dainippon Screen Mfg. Co. Ltd. Device for fitting and adjusting an encoder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228920A (en) * 1984-04-26 1985-11-14 Matsushita Electric Ind Co Ltd Optical type encoder
EP0191110A1 (en) * 1984-08-16 1986-08-20 Fanuc Ltd. Optical rotary encoder and a method of assembling the same
WO1986002441A1 (en) * 1984-10-19 1986-04-24 Fanuc Ltd Optical rotary encoder
US4718879A (en) * 1985-06-07 1988-01-12 Dainippon Screen Mfg. Co. Ltd. Device for fitting and adjusting an encoder

Also Published As

Publication number Publication date
JPS6041289B2 (en) 1985-09-14

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