AU2003224235A1 - Encoder with reference marks - Google Patents

Encoder with reference marks

Info

Publication number
AU2003224235A1
AU2003224235A1 AU2003224235A AU2003224235A AU2003224235A1 AU 2003224235 A1 AU2003224235 A1 AU 2003224235A1 AU 2003224235 A AU2003224235 A AU 2003224235A AU 2003224235 A AU2003224235 A AU 2003224235A AU 2003224235 A1 AU2003224235 A1 AU 2003224235A1
Authority
AU
Australia
Prior art keywords
encoder
reference marks
marks
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.)
Abandoned
Application number
AU2003224235A
Other versions
AU2003224235A8 (en
Inventor
James Reynolds Henshaw
Michael Homer
David Roberts Mcmurtry
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.)
Renishaw PLC
Original Assignee
Renishaw PLC
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 Renishaw PLC filed Critical Renishaw PLC
Publication of AU2003224235A1 publication Critical patent/AU2003224235A1/en
Publication of AU2003224235A8 publication Critical patent/AU2003224235A8/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0675—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy
    • H03M1/0678—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using additional components or elements, e.g. dummy components
    • 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
    • G01D5/12—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 using electric or magnetic means
    • G01D5/244—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 using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—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 using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G01D5/2457—Incremental encoders having reference marks
    • 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
AU2003224235A 2002-03-14 2003-03-14 Encoder with reference marks Abandoned AU2003224235A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0205972.3 2002-03-14
GB0205972A GB0205972D0 (en) 2002-03-14 2002-03-14 Encoder with reference marks
PCT/GB2003/001087 WO2003079555A2 (en) 2002-03-14 2003-03-14 Encoder with reference marks

Publications (2)

Publication Number Publication Date
AU2003224235A1 true AU2003224235A1 (en) 2003-09-29
AU2003224235A8 AU2003224235A8 (en) 2003-09-29

Family

ID=9932922

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003224235A Abandoned AU2003224235A1 (en) 2002-03-14 2003-03-14 Encoder with reference marks

Country Status (3)

Country Link
AU (1) AU2003224235A1 (en)
GB (1) GB0205972D0 (en)
WO (1) WO2003079555A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035345A1 (en) * 2006-11-20 2008-05-21 Dr. Johannes Heidenhain Gmbh Position measuring device
JP2014224745A (en) * 2013-05-16 2014-12-04 株式会社ミツトヨ Origin signal generating device and origin signal generating system
EP3465099A1 (en) * 2016-05-25 2019-04-10 Renishaw plc Adaptive reference mark detection process
CN114061631A (en) * 2020-07-29 2022-02-18 中车株洲电力机车研究所有限公司 Megawatt fan yaw counter adjustment testing device and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920259A (en) * 1988-09-30 1990-04-24 Hewlett-Packard Company Apparatus for producing a phase insensitive index pulse for motion encoders
IT1228112B (en) * 1988-12-21 1991-05-28 Cavi Pirelli S P A M Soc METHOD AND OPTICAL SENSOR FOR DETERMINING THE POSITION OF A MOBILE BODY
DE19754524A1 (en) * 1997-12-09 1999-06-10 Mannesmann Vdo Ag Displacement sensor
FR2777649A1 (en) * 1998-04-16 1999-10-22 Jean Pierre Bazenet Incremental measurement of displacement and position of objects, e.g. for machine shop controls

Also Published As

Publication number Publication date
AU2003224235A8 (en) 2003-09-29
GB0205972D0 (en) 2002-04-24
WO2003079555A3 (en) 2004-04-01
WO2003079555A2 (en) 2003-09-25

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase