TW200624979A - Optical encoder - Google Patents

Optical encoder

Info

Publication number
TW200624979A
TW200624979A TW094127170A TW94127170A TW200624979A TW 200624979 A TW200624979 A TW 200624979A TW 094127170 A TW094127170 A TW 094127170A TW 94127170 A TW94127170 A TW 94127170A TW 200624979 A TW200624979 A TW 200624979A
Authority
TW
Taiwan
Prior art keywords
code strip
detector element
track
optical encoder
indicia
Prior art date
Application number
TW094127170A
Other languages
English (en)
Inventor
Kean-Foong Ng
Sze-Kuang Lee
Hock-Aun Tan
Weng-Fei Wong
Wee-Jin Yeap
Chee Foo Lum
Kok Hing Fo
Toshiya Hataguchi
Randeep A L Singh Singh
Original Assignee
Agilent Technologies Inc
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 Agilent Technologies Inc filed Critical Agilent Technologies Inc
Publication of TW200624979A publication Critical patent/TW200624979A/zh

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
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices
    • 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
    • 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
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • 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
    • G01D5/34746—Linear encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
TW094127170A 2005-01-07 2005-08-10 Optical encoder TW200624979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/031,280 US7244928B2 (en) 2005-01-07 2005-01-07 Optical encoder

Publications (1)

Publication Number Publication Date
TW200624979A true TW200624979A (en) 2006-07-16

Family

ID=35911377

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094127170A TW200624979A (en) 2005-01-07 2005-08-10 Optical encoder

Country Status (5)

Country Link
US (2) US7244928B2 (zh)
JP (1) JP2006189449A (zh)
CN (1) CN100529678C (zh)
GB (1) GB2422007B (zh)
TW (1) TW200624979A (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4976823B2 (ja) * 2006-11-15 2012-07-18 株式会社ミツトヨ 光学式エンコーダ
US8173950B2 (en) * 2008-02-19 2012-05-08 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Single track optical encoder
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
US7795576B2 (en) * 2008-12-23 2010-09-14 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Single dome lens reflective optical encoder
SE537200C2 (sv) 2012-06-18 2015-03-03 Leine & Linde Ab Pulsgivaranordning för optisk detektering av rörelse eller läge
CN105771662A (zh) * 2016-03-10 2016-07-20 天津科技大学 光伏型太阳能热泵膜蒸馏装置
ES2702948T3 (es) * 2016-07-27 2019-03-06 Heidenhain Gmbh Dr Johannes Equipo para medir longitudes
EP3355032B1 (de) * 2017-01-30 2019-03-27 Dr. Johannes Heidenhain GmbH Sensor zur positionsmessung

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360730A (en) * 1980-10-16 1982-11-23 Itek Corporation Encoder alignment method and apparatus
US4508965A (en) * 1982-03-05 1985-04-02 Hewlett-Packard Company Uniaxially collimated light source for optical shaft angle encoders
JPS59211822A (ja) * 1983-05-17 1984-11-30 Yokogawa Hokushin Electric Corp 変位変換器
US4680466A (en) * 1984-04-20 1987-07-14 Yokogawa Hokushin Electric Corporation Displacement transducer which simultaneously extracts signals via sequential switching
JPS61105813U (zh) * 1984-12-17 1986-07-05
JPS63262523A (ja) * 1987-04-21 1988-10-28 Matsushita Electric Ind Co Ltd 絶対位置検出方法及びその装置
JPH01316611A (ja) * 1988-03-19 1989-12-21 Victor Co Of Japan Ltd 光学式アブソリュート型エンコーダ装置
DE3836315A1 (de) 1988-10-25 1990-05-03 Vdo Schindling Linienschreiber
JPH02188634A (ja) * 1989-01-17 1990-07-24 Hitachi Ltd 移動検出装置
US5235177A (en) * 1991-10-29 1993-08-10 Maximum, Inc. Angular position sensor using a polarized disc with coded tracks
AT396840B (de) 1992-03-10 1993-12-27 Rsf Elektronik Gmbh Vorrichtung zur erzeugung von referenzsignalen
JP3098358B2 (ja) * 1992-11-27 2000-10-16 三菱電機株式会社 位置検出素子、その位置検出素子を用いた位置検出方法、および光学式ロータリーエンコーダ
DE19510726C2 (de) * 1994-03-31 2002-06-27 Siemens Microelectronics Inc Verfahren zur Ausrichtung eines Lichtweges bei einer Optikeinrichtung
US6093928A (en) * 1994-12-22 2000-07-25 Ohtomo; Fumio Position measuring rotary incremental optical encoder
JPH09189574A (ja) * 1996-01-10 1997-07-22 Canon Inc 光学式リニアエンコーダ、及びこれを用いた電子装置、記録装置
US5698851A (en) * 1996-04-03 1997-12-16 Placa Ltd. Device and method for precise angular measurement by mapping small rotations into large phase shifts
US5808730A (en) * 1997-04-08 1998-09-15 Ceramoptec Industries Inc. Fiber optic displacement sensor
JPH1114404A (ja) * 1997-06-23 1999-01-22 Fanuc Ltd 光学式ロータリエンコーダ
JP2003227735A (ja) * 2002-01-31 2003-08-15 Olympus Optical Co Ltd 光学式エンコーダーおよびそのセンサーヘッド
JP2004191087A (ja) * 2002-12-09 2004-07-08 Nidec Copal Corp 光学式エンコーダ
RU2248093C1 (ru) 2003-07-04 2005-03-10 Общество с ограниченной ответственностью "СКБ ИС ПЛЮС" Оптико-электронный преобразователь положение-код

Also Published As

Publication number Publication date
US20060151686A1 (en) 2006-07-13
US20070221831A1 (en) 2007-09-27
US7449677B2 (en) 2008-11-11
CN100529678C (zh) 2009-08-19
JP2006189449A (ja) 2006-07-20
GB0600092D0 (en) 2006-02-15
GB2422007B (en) 2009-03-25
CN1800788A (zh) 2006-07-12
GB2422007A (en) 2006-07-12
US7244928B2 (en) 2007-07-17

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