CN1712902B - 光学编码器 - Google Patents

光学编码器 Download PDF

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Publication number
CN1712902B
CN1712902B CN2005100779524A CN200510077952A CN1712902B CN 1712902 B CN1712902 B CN 1712902B CN 2005100779524 A CN2005100779524 A CN 2005100779524A CN 200510077952 A CN200510077952 A CN 200510077952A CN 1712902 B CN1712902 B CN 1712902B
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CN
China
Prior art keywords
origin position
optical encoder
signal
scale
differential
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.)
Expired - Fee Related
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CN2005100779524A
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English (en)
Chinese (zh)
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CN1712902A (zh
Inventor
热田晓生
井垣正彦
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Canon Inc
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Canon Inc
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Application filed by Canon Inc filed Critical Canon Inc
Publication of CN1712902A publication Critical patent/CN1712902A/zh
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Publication of CN1712902B publication Critical patent/CN1712902B/zh
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    • 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
    • G01D5/36—Forming the light into pulses
    • G01D5/366—Particular pulse shapes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
CN2005100779524A 2004-06-15 2005-06-15 光学编码器 Expired - Fee Related CN1712902B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004-177407 2004-06-15
JP2004177407A JP4498024B2 (ja) 2004-06-15 2004-06-15 光学式エンコーダ
JP2004177407 2004-06-15

Publications (2)

Publication Number Publication Date
CN1712902A CN1712902A (zh) 2005-12-28
CN1712902B true CN1712902B (zh) 2010-09-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2005100779524A Expired - Fee Related CN1712902B (zh) 2004-06-15 2005-06-15 光学编码器

Country Status (3)

Country Link
US (1) US7348544B2 (https=)
JP (1) JP4498024B2 (https=)
CN (1) CN1712902B (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4908764B2 (ja) * 2005-02-04 2012-04-04 キヤノン株式会社 光学式エンコーダ
JP4869628B2 (ja) * 2005-05-26 2012-02-08 オリンパス株式会社 光学式エンコーダ
JP2008028025A (ja) * 2006-07-19 2008-02-07 Canon Inc 反射型センサ
JP4928206B2 (ja) * 2006-09-22 2012-05-09 キヤノン株式会社 エンコーダ
EP2115543B1 (en) * 2007-01-11 2012-10-31 3M Innovative Properties Company Web longitudinal position sensor
KR20100049540A (ko) * 2007-06-19 2010-05-12 쓰리엠 이노베이티브 프로퍼티즈 컴파니 내부 전반사 변위 스케일
WO2008157588A2 (en) * 2007-06-19 2008-12-24 3M Innovative Properties Company Systems and methods for fabricating displacement scales
EP2167411B1 (en) * 2007-06-19 2016-08-10 3M Innovative Properties Company Systems and methods for indicating the position of a web
US7973941B2 (en) * 2007-07-24 2011-07-05 Mitutoyo Corporation Reference signal generating configuration for an interferometric miniature grating encoder readhead using fiber optic receiver channels
US7965393B2 (en) 2007-07-24 2011-06-21 Mitutoyo Corporation Reference signal generating configuration for an interferometric miniature grating encoder readhead using fiber optic receiver channels
US7732754B2 (en) * 2008-04-30 2010-06-08 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Optical encoder with amplitude correction
US7709784B2 (en) 2008-04-30 2010-05-04 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Optical encoder with code wheel misalignment detection and automatic gain control
US7834310B2 (en) * 2008-06-23 2010-11-16 Xerox Corporation Position encoder's signal processing method and system
JP5113000B2 (ja) * 2008-09-19 2013-01-09 株式会社ミツトヨ 光電式エンコーダ
EP2380067B1 (en) 2008-12-29 2019-06-26 3M Innovative Properties Company Method and system for determining a longitudinal position of an elongated web
WO2010077719A2 (en) 2008-12-30 2010-07-08 3M Innovative Properties Company Apparatus and method for making fiducials on a substrate
JP5887064B2 (ja) * 2010-04-28 2016-03-16 株式会社ミツトヨ 光学式エンコーダ
EP2386832B1 (en) * 2010-05-10 2017-04-12 Mitutoyo Corporation Photoelectric encoder
JP5479255B2 (ja) * 2010-07-20 2014-04-23 キヤノン株式会社 光学式エンコーダ
JP2014098666A (ja) * 2012-11-15 2014-05-29 Canon Inc インクリメンタルエンコーダ
JP6625236B2 (ja) * 2016-10-25 2019-12-25 三菱電機株式会社 インクリメンタル型エンコーダのパルス化変換装置およびパルス化変換方法
DE112021008372T5 (de) * 2021-12-20 2024-09-12 Fanuc Corporation Steuervorrichtung für Roboter mit Mastering durch Drehmoment- oder Kraftsteuerung

Family Cites Families (21)

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Publication number Priority date Publication date Assignee Title
JPH0656304B2 (ja) 1989-09-05 1994-07-27 株式会社ミツトヨ 光電型エンコーダ
US5291133A (en) * 1992-08-24 1994-03-01 General Motors Corporation Multi-bit encoder signal conditioning circuit having common mode disturbance compensation
JP3530573B2 (ja) * 1994-04-27 2004-05-24 キヤノン株式会社 光学式変位センサ
JP3465483B2 (ja) 1996-06-26 2003-11-10 ミノルタ株式会社 エンコーダ装置
US6201239B1 (en) * 1997-01-21 2001-03-13 Olympus Optical Co., Ltd. Optical encoder
US5929789A (en) 1997-04-09 1999-07-27 Hewlett-Packrd Company Single channel incremental position encorder with incorporated reference mark
JPH10288538A (ja) * 1997-04-16 1998-10-27 Sony Corp オフセット調整方法
DE59806597D1 (de) * 1997-08-07 2003-01-23 Heidenhain Gmbh Dr Johannes Abtasteinheit für eine optische Positionsmesseinrichtung
US6043483A (en) * 1997-12-29 2000-03-28 Radica China Limited Apparatus and method using an indexed-encoder to sense the absolute position of an object with a single set of optics
EP1003012B3 (de) * 1998-11-19 2011-04-20 Dr. Johannes Heidenhain GmbH Optische Positionsmesseinrichtung
US6396052B1 (en) * 2000-04-07 2002-05-28 Lexmark International, Inc. High precision analog encoder system
JP2001317963A (ja) * 2000-05-09 2001-11-16 Olympus Optical Co Ltd 光学式エンコーダ
US6713756B2 (en) * 2000-05-09 2004-03-30 Olympus Corporation Optical encoder and optical rotary encoder
JP4280447B2 (ja) 2001-02-20 2009-06-17 キヤノン株式会社 反射スケールおよびそれを用いた変位検出装置
US6660997B2 (en) * 2001-04-26 2003-12-09 Creo Srl Absolute position Moiré type encoder for use in a control system
JP2003161645A (ja) 2001-11-28 2003-06-06 Canon Inc 光学式エンコーダ
JP4208483B2 (ja) * 2002-05-21 2009-01-14 キヤノン株式会社 光学式エンコーダ
US7312437B2 (en) * 2002-07-02 2007-12-25 Olympus Corporation Displacement sensor, method for detecting the optimal reference position, and method for judging stability of detecting the reference position of displacement sensor
US20040262502A1 (en) * 2003-06-26 2004-12-30 Xerox Corporation Position encoder
US20050109924A1 (en) * 2003-11-26 2005-05-26 David Christenson Apparatus for encoding and indexing
DE602005002287T2 (de) * 2004-03-17 2008-05-29 Canon K.K. Optischer Encoder

Also Published As

Publication number Publication date
US20050274880A1 (en) 2005-12-15
US7348544B2 (en) 2008-03-25
JP2006003126A (ja) 2006-01-05
JP4498024B2 (ja) 2010-07-07
CN1712902A (zh) 2005-12-28

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Granted publication date: 20100908

Termination date: 20200615