DE3279655D1 - Absolute encoder - Google Patents

Absolute encoder

Info

Publication number
DE3279655D1
DE3279655D1 DE8282107383T DE3279655T DE3279655D1 DE 3279655 D1 DE3279655 D1 DE 3279655D1 DE 8282107383 T DE8282107383 T DE 8282107383T DE 3279655 T DE3279655 T DE 3279655T DE 3279655 D1 DE3279655 D1 DE 3279655D1
Authority
DE
Germany
Prior art keywords
absolute encoder
encoder
absolute
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
Application number
DE8282107383T
Other languages
English (en)
Inventor
Kazuaki C O Tokyo Kogak Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Topcon Corp
Original Assignee
Tokyo Kogaku Kikai KK
Tokyo Optical Co Ltd
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 Tokyo Kogaku Kikai KK, Tokyo Optical Co Ltd filed Critical Tokyo Kogaku Kikai KK
Application granted granted Critical
Publication of DE3279655D1 publication Critical patent/DE3279655D1/de
Expired legal-status Critical Current

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/308—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental with additional pattern means for determining the absolute position, e.g. reference marks

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
DE8282107383T 1981-08-13 1982-08-13 Absolute encoder Expired DE3279655D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56126013A JPS5829093A (ja) 1981-08-13 1981-08-13 アブソリユ−トエンコ−ダ

Publications (1)

Publication Number Publication Date
DE3279655D1 true DE3279655D1 (en) 1989-06-01

Family

ID=14924560

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198282107383T Pending DE72549T1 (de) 1981-08-13 1982-08-13 Absolutwertgeber.
DE8282107383T Expired DE3279655D1 (en) 1981-08-13 1982-08-13 Absolute encoder

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE198282107383T Pending DE72549T1 (de) 1981-08-13 1982-08-13 Absolutwertgeber.

Country Status (4)

Country Link
US (1) US4602242A (de)
EP (1) EP0072549B1 (de)
JP (1) JPS5829093A (de)
DE (2) DE72549T1 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3427411C2 (de) * 1984-07-25 1987-01-08 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Meßeinrichtung
DE3526206A1 (de) * 1985-07-23 1987-02-05 Heidenhain Gmbh Dr Johannes Wegmesseinrichtung
JPH07111358B2 (ja) * 1986-01-23 1995-11-29 石川島播磨重工業株式会社 絶対番地形位置検出装置
US4733069A (en) * 1986-02-14 1988-03-22 Optec Co., Ltd. Position encoder using a laser scan beam
US4967075A (en) * 1986-09-16 1990-10-30 High Yield Technology Velocity monitoring method and apparatus
SE460928B (sv) * 1986-10-13 1989-12-04 Johansson Ab C E Absolutmaetande skalsystem
JP2645350B2 (ja) * 1987-01-28 1997-08-25 チノン株式会社 シリアルドットマトリクスプリンタ
DE3809569A1 (de) * 1988-03-22 1989-10-05 Frankl & Kirchner Positionsgeber
JP2567036B2 (ja) * 1988-05-10 1996-12-25 キヤノン株式会社 光学式エンコーダ
IT1217650B (it) * 1988-05-19 1990-03-30 Microptronics Srl Dispositivo per la lettura ottica di supporti planari
KR900702328A (ko) * 1988-07-12 1990-12-06 후루노 기요까따 로타리 엔코더
JP2715655B2 (ja) * 1990-11-21 1998-02-18 株式会社デンソー 非接触式移動量測定方法およびその装置
US5254919A (en) * 1991-03-22 1993-10-19 Eastman Kodak Company Encoder system using linear array sensor for high resolution
US5336884A (en) * 1992-07-01 1994-08-09 Rockwell International Corporation High resolution optical hybrid absolute incremental position encoder
EP0660085B1 (de) * 1993-12-22 1997-07-09 Troll, Christian, Dr.-Ing. habil. Absolutes Positionsmesssystem
US7387253B1 (en) 1996-09-03 2008-06-17 Hand Held Products, Inc. Optical reader system comprising local host processor and optical reader
KR100264312B1 (ko) * 1995-10-13 2000-08-16 디지래드 개선된 전하 수집능력을 갖는 반도체 방사선 검출기
US5774074A (en) * 1997-01-21 1998-06-30 Hewlett-Packard Company Multi-track position encoder system
GB9807020D0 (en) * 1998-04-02 1998-06-03 Bamford Excavators Ltd A method of marking a mechanical element, an encoding scheme, a reading means for said marking and an apparatus for determining the position of said element
US6017114A (en) * 1998-09-30 2000-01-25 Hewlett-Packard Company Shifted element scanning/printing routine coordinated with media advance
DE10244234A1 (de) * 2002-09-23 2004-03-25 Dr. Johannes Heidenhain Gmbh Positionsmesseinrichtung
US20070114370A1 (en) * 2003-10-10 2007-05-24 Smith Ronald H Fiber optic remote reading encoder
US7166833B2 (en) * 2003-10-10 2007-01-23 Optelecom-Nkf Fiber optic remote reading encoder
US7191943B2 (en) * 2004-07-28 2007-03-20 Caterpillar Inc Robust barcode and reader for rod position determination
WO2009103342A1 (en) 2008-02-22 2009-08-27 Trimble Jena Gmbh Angle measurement device and method
JP5159663B2 (ja) 2009-02-13 2013-03-06 キヤノン株式会社 原点検出装置、変位測定装置および電子機器
KR101456882B1 (ko) 2012-05-18 2014-11-03 서울대학교산학협력단 버니어 방식 광학 엔코더의 비트 오차 보정을 위한 디지털 옵토-일렉트리컬 펄스 적용 방법
WO2013172564A1 (en) * 2012-05-18 2013-11-21 Snu R&Db Foundation Digital opto-electric pulse application method for correcting bit error of vernier-type optical encoder

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928953A (en) * 1956-10-25 1960-03-15 Bassler Fritz Method and apparatus for aligning record carriers relative to a record scanner
US3458709A (en) * 1964-06-24 1969-07-29 North American Rockwell Time reference angle encoder using radiation sensitive means
US3509562A (en) * 1966-07-25 1970-04-28 Baldwin Co D H Analog to digital encoder
CH502580A (de) * 1969-01-24 1971-01-31 Oerlikon Buehrle Ag Vorrichtung mit einer Photozellenanordnung zur Bestimmung der Lage eines äquidistant geteilten Massstabes
FR2310549A1 (fr) * 1975-05-07 1976-12-03 Sagem Perfectionnements aux dispositifs optiques de determination de la position d'un organe mobile
GB1574439A (en) * 1976-02-03 1980-09-10 Solartron Electronic Group Displacement transducers
DE2811807A1 (de) * 1978-03-16 1979-09-20 Joachim Dr Ing Wernicke Digital-absoluter winkelkodierer nach dem nonius-prinzip
DE2966200D1 (en) * 1978-10-30 1983-10-27 Sanden Corp Scroll-type fluid compressor units
DE2967525D1 (en) * 1978-12-19 1985-11-07 Toshiba Kk Encoder for length or angle measuring devices with high accuracy
JPS576994A (en) * 1980-06-17 1982-01-13 Tokyo Optical Coding board for encoder
JPS57104815A (en) * 1980-12-20 1982-06-30 Asahi Optical Co Ltd Angle measuring apparatus employing line sensor

Also Published As

Publication number Publication date
EP0072549B1 (de) 1989-04-26
EP0072549A2 (de) 1983-02-23
DE72549T1 (de) 1985-08-14
JPS5829093A (ja) 1983-02-21
JPH0157292B2 (de) 1989-12-05
US4602242A (en) 1986-07-22
EP0072549A3 (en) 1985-05-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: KABUSHIKI KAISHA TOPCON, TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee