SE0301164D0 - Improved high accuracy absolute optical encoder - Google Patents

Improved high accuracy absolute optical encoder

Info

Publication number
SE0301164D0
SE0301164D0 SE0301164A SE0301164A SE0301164D0 SE 0301164 D0 SE0301164 D0 SE 0301164D0 SE 0301164 A SE0301164 A SE 0301164A SE 0301164 A SE0301164 A SE 0301164A SE 0301164 D0 SE0301164 D0 SE 0301164D0
Authority
SE
Sweden
Prior art keywords
absolute
incremental
disk
tracks
scale element
Prior art date
Application number
SE0301164A
Other languages
English (en)
Swedish (sv)
Inventor
Mikael Nordenfelt
Mikael Hertzman
Staffan Palm
Magnus Westermark
Original Assignee
Trimble Ab
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 Trimble Ab filed Critical Trimble Ab
Priority to SE0301164A priority Critical patent/SE0301164D0/xx
Publication of SE0301164D0 publication Critical patent/SE0301164D0/xx
Priority to US10/554,027 priority patent/US7589313B2/en
Priority to JP2006508028A priority patent/JP4927532B2/ja
Priority to PCT/SE2004/000607 priority patent/WO2004094957A1/en
Priority to EP04728729A priority patent/EP1616151B1/en
Priority to DE602004009429T priority patent/DE602004009429T2/de
Priority to AT04728729T priority patent/ATE375500T1/de

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Analogue/Digital Conversion (AREA)
SE0301164A 2003-04-22 2003-04-22 Improved high accuracy absolute optical encoder SE0301164D0 (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE0301164A SE0301164D0 (sv) 2003-04-22 2003-04-22 Improved high accuracy absolute optical encoder
US10/554,027 US7589313B2 (en) 2003-04-22 2004-04-21 Method and apparatus for absolute optical encoders with reduced sensitivity to scale or disk mounting errors
JP2006508028A JP4927532B2 (ja) 2003-04-22 2004-04-21 スケールまたはディスクの取り付け誤差の影響を受けにくい絶対光学エンコーダ用の方法および装置
PCT/SE2004/000607 WO2004094957A1 (en) 2003-04-22 2004-04-21 Method and apparatus for absolute optical encoders with reduced sensitivity to scale or disk mounting errors
EP04728729A EP1616151B1 (en) 2003-04-22 2004-04-21 Method and apparatus for absolute optical encoders with reduced sensitivity to scale or disk mounting errors
DE602004009429T DE602004009429T2 (de) 2003-04-22 2004-04-21 Verfahren und vorrichtung für absolute optische codierer mit verringerter empfindlichkeit gegenüber skalierungs- oder plattenanbringfehlern
AT04728729T ATE375500T1 (de) 2003-04-22 2004-04-21 Verfahren und vorrichtung für absolute optische codierer mit verringerter empfindlichkeit gegenüber skalierungs- oder plattenanbringfehlern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0301164A SE0301164D0 (sv) 2003-04-22 2003-04-22 Improved high accuracy absolute optical encoder

Publications (1)

Publication Number Publication Date
SE0301164D0 true SE0301164D0 (sv) 2003-04-22

Family

ID=20291082

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0301164A SE0301164D0 (sv) 2003-04-22 2003-04-22 Improved high accuracy absolute optical encoder

Country Status (7)

Country Link
US (1) US7589313B2 (xx)
EP (1) EP1616151B1 (xx)
JP (1) JP4927532B2 (xx)
AT (1) ATE375500T1 (xx)
DE (1) DE602004009429T2 (xx)
SE (1) SE0301164D0 (xx)
WO (1) WO2004094957A1 (xx)

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US7525085B2 (en) * 2006-04-14 2009-04-28 Avago Technologies General Ip (Singapore) Pte. Ltd. Multi-axis optical encoders
EP1890113A1 (de) * 2006-08-18 2008-02-20 Leica Geosystems AG Optoelektronischer winkelsensor und verfahren zum bestimmen eines drehwinkels um eine achse
US20080156973A1 (en) * 2006-12-29 2008-07-03 Weng Fei Wong Photosensor array for optical encoder
WO2009055611A1 (en) * 2007-10-23 2009-04-30 Trw Automotive U.S. Llc Sensor and method for determining an angular position of a rotor
WO2009103342A1 (en) * 2008-02-22 2009-08-27 Trimble Jena Gmbh Angle measurement device and method
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CN101377424B (zh) * 2008-09-28 2010-09-22 华为终端有限公司 一种位置检测装置
EP2414782B1 (en) 2009-04-03 2014-11-12 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement A one-dimension position encoder
GB0906258D0 (en) 2009-04-08 2009-05-20 Renishaw Plc Position encoder apparatus
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GB0907842D0 (en) * 2009-05-06 2009-06-17 Renishaw Plc Position encoder apparatus and method of operation
GB0909724D0 (en) 2009-06-05 2009-07-22 Renishaw Plc Position measurement encoder and method of operation
NO20093007A1 (no) * 2009-09-16 2011-03-17 Kongsberg Seatex As Fartoybevegelser
US8395111B2 (en) * 2010-03-31 2013-03-12 Nxp B.V. Optical system and method for detecting rotation of an object
US9234773B2 (en) 2010-05-17 2016-01-12 Faro Technologies, Inc. Self-compensating angular encoder
JP5379761B2 (ja) * 2010-08-06 2013-12-25 キヤノン株式会社 アブソリュートエンコーダ
US8539685B2 (en) 2011-01-20 2013-09-24 Trimble Navigation Limited Integrated surveying and leveling
US9091569B2 (en) * 2011-04-19 2015-07-28 Caterpillar Inc. Opacity-based rotary position sensor and method
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FR2986352B1 (fr) * 2012-01-30 2014-02-14 Soc Fr Detecteurs Infrarouges Sofradir Procede de recherche de pixels dans une matrice et circuit mettant en oeuvre le procede
GB201204066D0 (en) 2012-03-08 2012-04-18 Renishaw Plc Magnetic encoder apparatus
US9482560B2 (en) 2012-07-04 2016-11-01 Hexagon Technology Center Gmbh Optical position transmitter with analog memory unit
EP2693166B1 (de) * 2012-07-31 2015-09-09 SICK STEGMANN GmbH Sende- und Empfangseinheit und Drehgeber mit einer solchen
JP6401542B2 (ja) * 2014-08-07 2018-10-10 株式会社トプコン アブソリュートエンコーダ、測量装置
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CN104655156B (zh) * 2014-12-31 2017-06-06 哈尔滨工业大学 一种矩阵式编码方式的绝对式码盘的误差补偿方法
EP3139132B1 (de) * 2015-09-03 2020-02-19 Hexagon Technology Center GmbH Flächen-absolutcodierung
US10043051B2 (en) * 2016-03-07 2018-08-07 Microsoft Technology Licensing, Llc Triggered image sensing with a display
US20190212172A1 (en) * 2018-01-09 2019-07-11 Tt Electronics Plc Absolute Optical Encoders Using Programmable Photodetector Array
JP2019143979A (ja) * 2018-02-15 2019-08-29 セイコーエプソン株式会社 エンコーダーユニット、角度検出方法およびロボット
JP7222081B2 (ja) * 2018-06-07 2023-02-14 エム． ジョンソン、フィリップ 線形及び回転マルチトラック絶対位置エンコーダ並びにそれを使用した方法
US10886932B2 (en) 2018-09-11 2021-01-05 Tt Electronics Plc Method and apparatus for alignment adjustment of encoder systems
JP6894149B2 (ja) * 2019-11-29 2021-06-23 三男 眞鍋 位置測定装置
CN114608633B (zh) * 2022-03-22 2023-05-12 中国科学院长春光学精密机械与物理研究所 一种单码道绝对式位移测量编码码盘和系统
CN115898063B (zh) * 2023-03-13 2023-05-23 福建福清核电有限公司 一种高层构筑物表面维护装置及方法
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US7060968B1 (en) * 2002-06-04 2006-06-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for optical encoding with compressible imaging

Also Published As

Publication number Publication date
EP1616151A1 (en) 2006-01-18
US7589313B2 (en) 2009-09-15
JP2006524335A (ja) 2006-10-26
DE602004009429D1 (de) 2007-11-22
JP4927532B2 (ja) 2012-05-09
WO2004094957A1 (en) 2004-11-04
DE602004009429T2 (de) 2008-10-16
ATE375500T1 (de) 2007-10-15
EP1616151B1 (en) 2007-10-10
US20060243895A1 (en) 2006-11-02

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