IN2014DN07394A - - Google Patents

Info

Publication number
IN2014DN07394A
IN2014DN07394A IN7394DEN2014A IN2014DN07394A IN 2014DN07394 A IN2014DN07394 A IN 2014DN07394A IN 7394DEN2014 A IN7394DEN2014 A IN 7394DEN2014A IN 2014DN07394 A IN2014DN07394 A IN 2014DN07394A
Authority
IN
India
Prior art keywords
magnetic
sensor elements
periodically repeating
scale
analyser
Prior art date
Application number
Inventor
Peter Kogej
Aljaz Ogrin
Gregor Dolsak
Blaz Hajdinjak
Original Assignee
Renishaw Plc
Rls Merilna Tehnika D O O
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, Rls Merilna Tehnika D O O filed Critical Renishaw Plc
Publication of IN2014DN07394A publication Critical patent/IN2014DN07394A/en

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
    • G01D5/12—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
    • 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
    • G01D5/24409—Interpolation using memories
    • 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
    • G01D5/2458—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on separate encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Magnetic encoder apparatus (2) is described that comprises a plurality of magnetic sensor elements (e.g. Hall sensors) for reading an associated magnetic scale (4; 10) that produces a periodically repeating magnetic pattern. The plurality of magnetic sensor elements produce a plurality of sensor signals and an analyser (7) is provided for analysing the plurality of sensor signals to provide a measure of the position of the magnetic sensor elements relative to the associated magnetic scale (4; 10). The analyser (7) is arranged to use the plurality of sensor signals to assess the period (60) of the periodically repeating magnetic pattern sensed by the plurality of magnetic sensor elements. In this manner the requirement to carefully match the period of the sensor elements with the periodically repeating magnetic pattern of the associated magnetic scale (4; 10) is avoided.
IN7394DEN2014 2012-03-08 2013-03-06 IN2014DN07394A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1204066.3A GB201204066D0 (en) 2012-03-08 2012-03-08 Magnetic encoder apparatus
PCT/GB2013/000090 WO2013132207A1 (en) 2012-03-08 2013-03-06 Magnetic encoder apparatus

Publications (1)

Publication Number Publication Date
IN2014DN07394A true IN2014DN07394A (en) 2015-04-24

Family

ID=46003303

Family Applications (1)

Application Number Title Priority Date Filing Date
IN7394DEN2014 IN2014DN07394A (en) 2012-03-08 2013-03-06

Country Status (8)

Country Link
US (1) US9541423B2 (en)
EP (1) EP2823260B1 (en)
JP (1) JP6204383B2 (en)
CN (1) CN104160248B (en)
DK (1) DK2823260T3 (en)
GB (1) GB201204066D0 (en)
IN (1) IN2014DN07394A (en)
WO (1) WO2013132207A1 (en)

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DE102016206905A1 (en) * 2016-04-22 2017-10-26 Festo Ag & Co. Kg Sensor system and method for determining a position of a measuring element along a movement path
CN108072391A (en) * 2016-11-08 2018-05-25 苏州博拉腾信息科技有限公司 The energy saving encoder of nickel alloy magnetism
KR20180052029A (en) * 2016-11-09 2018-05-17 주식회사 퀸텟시스템즈 Apparatus and method for magnetic field communication
US10422666B2 (en) * 2016-12-23 2019-09-24 Mitutoyo Corporation Electronic position encoder and method for reducing short range errors
CN112344969A (en) * 2020-11-17 2021-02-09 湖南航天磁电有限责任公司 Off-axis single-ring multi-antipode absolute magnetic encoder
US20220205815A1 (en) * 2020-12-31 2022-06-30 Mitutoyo Corporation Sensing winding configuration for inductive position encoder
US11846529B2 (en) 2021-04-19 2023-12-19 Joral Llc Magnetic rack and pinion linear magnetic encoder and position sensing system
CN115900776A (en) * 2021-08-20 2023-04-04 美的威灵电机技术（上海）有限公司 Encoder, method and device for compensating position of axial runout of encoder and storage medium
SI26261A (en) 2021-10-26 2023-04-28 Rls Merilna Tehnika D.O.O. Magnetic encoder with two tracks

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Also Published As

Publication number Publication date
US9541423B2 (en) 2017-01-10
WO2013132207A1 (en) 2013-09-12
JP2015509602A (en) 2015-03-30
EP2823260A1 (en) 2015-01-14
EP2823260B1 (en) 2017-07-26
GB201204066D0 (en) 2012-04-18
JP6204383B2 (en) 2017-09-27
CN104160248A (en) 2014-11-19
CN104160248B (en) 2017-08-08
US20150077092A1 (en) 2015-03-19
DK2823260T3 (en) 2017-08-28

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