JP4498024B2 - 光学式エンコーダ - Google Patents

光学式エンコーダ Download PDF

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Publication number
JP4498024B2
JP4498024B2 JP2004177407A JP2004177407A JP4498024B2 JP 4498024 B2 JP4498024 B2 JP 4498024B2 JP 2004177407 A JP2004177407 A JP 2004177407A JP 2004177407 A JP2004177407 A JP 2004177407A JP 4498024 B2 JP4498024 B2 JP 4498024B2
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Japan
Prior art keywords
signal
amplitude
scale
center voltage
value
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Expired - Fee Related
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JP2004177407A
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English (en)
Japanese (ja)
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JP2006003126A5 (enExample
JP2006003126A (ja
Inventor
暁生 熱田
正彦 井垣
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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
Priority to JP2004177407A priority Critical patent/JP4498024B2/ja
Priority to US11/152,412 priority patent/US7348544B2/en
Priority to CN2005100779524A priority patent/CN1712902B/zh
Publication of JP2006003126A publication Critical patent/JP2006003126A/ja
Publication of JP2006003126A5 publication Critical patent/JP2006003126A5/ja
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Publication of JP4498024B2 publication Critical patent/JP4498024B2/ja
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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)
JP2004177407A 2004-06-15 2004-06-15 光学式エンコーダ Expired - Fee Related JP4498024B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2004177407A JP4498024B2 (ja) 2004-06-15 2004-06-15 光学式エンコーダ
US11/152,412 US7348544B2 (en) 2004-06-15 2005-06-14 Optical encoder with discontinuous optical grating
CN2005100779524A CN1712902B (zh) 2004-06-15 2005-06-15 光学编码器

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
JP2006003126A JP2006003126A (ja) 2006-01-05
JP2006003126A5 JP2006003126A5 (enExample) 2007-07-26
JP4498024B2 true JP4498024B2 (ja) 2010-07-07

Family

ID=35459538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004177407A Expired - Fee Related JP4498024B2 (ja) 2004-06-15 2004-06-15 光学式エンコーダ

Country Status (3)

Country Link
US (1) US7348544B2 (enExample)
JP (1) JP4498024B2 (enExample)
CN (1) CN1712902B (enExample)

Families Citing this family (22)

* 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
WO2008088650A1 (en) * 2007-01-11 2008-07-24 3M Innovative Properties Company Web longitudinal position sensor
JP2010530543A (ja) * 2007-06-19 2010-09-09 スリーエム イノベイティブ プロパティズ カンパニー 変位スケールを製作するシステム及び方法
US8405831B2 (en) * 2007-06-19 2013-03-26 3M Innovative Properties Company Systems and methods for indicating the position of a web
US20100188668A1 (en) * 2007-06-19 2010-07-29 3M Innovative Properties Company Total internal reflection displacement scale
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
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
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
US7732754B2 (en) * 2008-04-30 2010-06-08 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Optical encoder with amplitude correction
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
WO2010077592A2 (en) 2008-12-29 2010-07-08 3M Innovative Properties Company Phase-locked web position signal using web fiducials
KR101578259B1 (ko) 2008-12-30 2015-12-16 쓰리엠 이노베이티브 프로퍼티즈 컴파니 기점을 기재 상에 형성하기 위한 장치 및 방법
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
WO2023119378A1 (ja) * 2021-12-20 2023-06-29 ファナック株式会社 トルクまたは力の制御によりマスタリングを行うロボットの制御装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
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
ATE229642T1 (de) * 1997-08-07 2002-12-15 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
EP1235054B1 (en) * 2001-02-20 2011-09-21 Canon Kabushiki Kaisha Optical displacement detecting apparatus
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
US7348544B2 (en) 2008-03-25
US20050274880A1 (en) 2005-12-15
CN1712902A (zh) 2005-12-28
JP2006003126A (ja) 2006-01-05
CN1712902B (zh) 2010-09-08

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