JPS56162012A - Rotary encoder - Google Patents

Rotary encoder

Info

Publication number
JPS56162012A
JPS56162012A JP6684680A JP6684680A JPS56162012A JP S56162012 A JPS56162012 A JP S56162012A JP 6684680 A JP6684680 A JP 6684680A JP 6684680 A JP6684680 A JP 6684680A JP S56162012 A JPS56162012 A JP S56162012A
Authority
JP
Japan
Prior art keywords
disc
hub
detecting part
slided
eccentricity
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
JP6684680A
Other languages
Japanese (ja)
Inventor
Hiroshi Ito
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.)
Nikon Corp
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
Nippon Kogaku KK
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 Nippon Chemical Industrial Co Ltd, Nippon Kogaku KK filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP6684680A priority Critical patent/JPS56162012A/en
Publication of JPS56162012A publication Critical patent/JPS56162012A/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
    • G01D5/3473—Circular or rotary encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To measure an angle and a rotation quantity with a high precision, by arranging a detecting part on the supporting material, which is provided on the outside circumferential face of a disc material, and by keeping relative positions of the detecting part and the main scale of the pulse disc constant. CONSTITUTION:When a pulse disc 1 and a hub 12 which have eccentricity for the axis of a rotating shaft 13 are rotated, the outside circumferential face of the hub 12 is slided by 2epsilon in one rotation for an eccentricity quantity epsilon. At this time, a sliding body 19 is brought into contact with the hub 12 at points 20a and 20b by a fixed base 15 and is slided similary to the motion of the center of the disc 1. This sliding is transferred to a detecting part 2A through a flat spring 22, and a main scale 1a and an index scale 4 hold predetermined positional relations accurately. Consequently, the error of the detection signal from a photodetector 10 is cancelled completely approximately.
JP6684680A 1980-05-20 1980-05-20 Rotary encoder Pending JPS56162012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6684680A JPS56162012A (en) 1980-05-20 1980-05-20 Rotary encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6684680A JPS56162012A (en) 1980-05-20 1980-05-20 Rotary encoder

Publications (1)

Publication Number Publication Date
JPS56162012A true JPS56162012A (en) 1981-12-12

Family

ID=13327612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6684680A Pending JPS56162012A (en) 1980-05-20 1980-05-20 Rotary encoder

Country Status (1)

Country Link
JP (1) JPS56162012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62219714A (en) * 1986-03-19 1987-09-28 Yokogawa Electric Corp Displacement transducer
CN104913926A (en) * 2015-06-25 2015-09-16 西安理工大学 Inclined coil spring fatigue testing device with controllable eccentric magnitude and testing method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531972A (en) * 1978-08-30 1980-03-06 Tokyo Optical Co Ltd Rotary encoder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531972A (en) * 1978-08-30 1980-03-06 Tokyo Optical Co Ltd Rotary encoder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62219714A (en) * 1986-03-19 1987-09-28 Yokogawa Electric Corp Displacement transducer
CN104913926A (en) * 2015-06-25 2015-09-16 西安理工大学 Inclined coil spring fatigue testing device with controllable eccentric magnitude and testing method thereof
CN104913926B (en) * 2015-06-25 2017-11-03 西安理工大学 The canted coil spring fatigue experimental device and test method of a kind of controllable offset

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