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IN2014DE03117A - - Google Patents

Info

Publication number
IN2014DE03117A
IN2014DE03117A IN3117DE2014A IN2014DE03117A IN 2014DE03117 A IN2014DE03117 A IN 2014DE03117A IN 3117DE2014 A IN3117DE2014 A IN 3117DE2014A IN 2014DE03117 A IN2014DE03117 A IN 2014DE03117A
Authority
IN
India
Prior art keywords
track
light
light receiving
effecters
optical
Prior art date
Application number
Inventor
Yoshida Yasushi
Matsutani Yasuhiro
Yoshidomi Shiro
Takada Hiroshi
Arinaga Yuji
Murokita Ikuma
Harada Masanobu
Kondo Hiroki
Original Assignee
Yaskawa Denki Seisakusho 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 Yaskawa Denki Seisakusho Kk filed Critical Yaskawa Denki Seisakusho Kk
Publication of IN2014DE03117A publication Critical patent/IN2014DE03117A/en

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
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
    • 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

An encoder includes a track having optical effecters arranged to have an absolute pattern in a measurement direction, a light source configured to emit diffusion light to the track, and a light receiving array configured to have light receiving elements arranged in the measurement direction and to receive light reflected or transmitted by the track. The light receiving elements fall within an area which is positioned corresponding to an area between the optical effecters and to which the light reflected by the track dose not reach.
IN3117DE2014 2013-11-05 2014-10-30 IN2014DE03117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013229833A JP6263965B2 (en) 2013-11-05 2013-11-05 Encoder, motor with encoder, servo system

Publications (1)

Publication Number Publication Date
IN2014DE03117A true IN2014DE03117A (en) 2015-07-03

Family

ID=51830226

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3117DE2014 IN2014DE03117A (en) 2013-11-05 2014-10-30

Country Status (7)

Country Link
US (1) US9625283B2 (en)
EP (1) EP2869032B1 (en)
JP (1) JP6263965B2 (en)
CN (2) CN204461450U (en)
BR (1) BR102014027623A2 (en)
IN (1) IN2014DE03117A (en)
SG (1) SG10201407222SA (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6263965B2 (en) 2013-11-05 2018-01-24 株式会社安川電機 Encoder, motor with encoder, servo system
JPWO2018163424A1 (en) * 2017-03-10 2019-03-22 三菱電機株式会社 Absolute encoder
US10724877B2 (en) * 2017-10-23 2020-07-28 Mitutoyo Corporation Compact pseudorandom scale and read head for an inductive type absolute position encoder
WO2019236821A1 (en) * 2018-06-07 2019-12-12 Johnson Philip M Linear and rotary multitrack absolute position encoder and methods using the same
JP6842680B2 (en) * 2019-07-19 2021-03-17 株式会社安川電機 Encoder, servo motor, servo system
JP6924419B2 (en) * 2019-09-06 2021-08-25 株式会社安川電機 Encoder, servo motor, servo system
JPWO2022264735A1 (en) * 2021-06-18 2022-12-22
US20240271967A1 (en) * 2021-06-18 2024-08-15 Panasonic Intellectual Property Management Co., Ltd. Light receiving element, and rotation detector
US20250060230A1 (en) * 2021-12-27 2025-02-20 Panasonic Intellectual Property Management Co., Ltd. Encoder and attachment method
CN118922688A (en) * 2022-03-29 2024-11-08 松下知识产权经营株式会社 Encoder with a plurality of sensors

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JPS5512528B2 (en) * 1971-11-30 1980-04-02
US4912322A (en) 1986-08-15 1990-03-27 Mitutoyo Mfg. Co., Ltd. Optical type displacement detecting device
JPH01113616A (en) * 1987-10-27 1989-05-02 Matsushita Electric Ind Co Ltd Position detector
JPH03103717A (en) * 1989-09-19 1991-04-30 Yaskawa Electric Mfg Co Ltd Optical encoder
JPH04295719A (en) * 1991-03-25 1992-10-20 Nikon Corp absolute encoder
JP3198789B2 (en) * 1994-04-12 2001-08-13 松下電器産業株式会社 Optical encoder
JPH1114404A (en) * 1997-06-23 1999-01-22 Fanuc Ltd Optical rotary encoder
US7064842B1 (en) * 1999-01-13 2006-06-20 Olympus Optical Co., Ltd. Optical displacement sensor and optical encoder
JP2002013949A (en) * 2000-06-27 2002-01-18 Sokkia Co Ltd Absolute encoder
US7193204B2 (en) * 2002-07-08 2007-03-20 Gsi Group Corporation Multi-track optical encoder employing beam divider
JP4658452B2 (en) * 2003-02-07 2011-03-23 オリンパス株式会社 Optical encoder
JP2005156549A (en) 2003-11-05 2005-06-16 Sendai Nikon:Kk Optical encoder
US7112781B2 (en) * 2004-04-21 2006-09-26 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Absolute encoder
JP2006084448A (en) 2004-09-17 2006-03-30 Yaskawa Electric Corp Optical encoder
JP2007333667A (en) * 2006-06-19 2007-12-27 Olympus Corp Optical encoder
JP5016001B2 (en) * 2009-06-16 2012-09-05 シャープ株式会社 Optical encoder and electronic equipment
JP5212340B2 (en) * 2009-11-13 2013-06-19 株式会社ニコン Absolute encoder
JP5538870B2 (en) 2009-12-24 2014-07-02 キヤノン株式会社 Rotary encoder
JP5562076B2 (en) * 2010-03-10 2014-07-30 キヤノン株式会社 Optical encoder and displacement measuring device
JP4945674B2 (en) 2010-11-08 2012-06-06 株式会社安川電機 Reflective encoder, servo motor and servo unit
EP2487464B1 (en) * 2011-02-10 2015-04-08 Kabushiki Kaisha Yaskawa Denki Encoder, optical module, and servo system
JP4816988B1 (en) 2011-02-10 2011-11-16 株式会社安川電機 Encoder, optical module and servo system
JP6263965B2 (en) 2013-11-05 2018-01-24 株式会社安川電機 Encoder, motor with encoder, servo system

Also Published As

Publication number Publication date
EP2869032A1 (en) 2015-05-06
JP6263965B2 (en) 2018-01-24
JP2015090303A (en) 2015-05-11
SG10201407222SA (en) 2015-04-29
US9625283B2 (en) 2017-04-18
US20150122982A1 (en) 2015-05-07
CN104613999A (en) 2015-05-13
CN204461450U (en) 2015-07-08
CN104613999B (en) 2017-08-11
EP2869032B1 (en) 2016-09-14
BR102014027623A2 (en) 2015-09-15

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