CA2373381C - Position encoder utilizing fluxgate sensors - Google Patents

Position encoder utilizing fluxgate sensors Download PDF

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Publication number
CA2373381C
CA2373381C CA2373381A CA2373381A CA2373381C CA 2373381 C CA2373381 C CA 2373381C CA 2373381 A CA2373381 A CA 2373381A CA 2373381 A CA2373381 A CA 2373381A CA 2373381 C CA2373381 C CA 2373381C
Authority
CA
Canada
Prior art keywords
sensor
signal
radial
tangential
pair
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 - Lifetime
Application number
CA2373381A
Other languages
English (en)
French (fr)
Other versions
CA2373381A1 (en
Inventor
J. Thomas Fowler
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.)
Tiax LLC
Original Assignee
Tiax LLC
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 Tiax LLC filed Critical Tiax LLC
Publication of CA2373381A1 publication Critical patent/CA2373381A1/en
Application granted granted Critical
Publication of CA2373381C publication Critical patent/CA2373381C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
    • 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
    • G01D5/14—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 the magnitude of a current or voltage
    • G01D5/20—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 the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—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 the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/2208—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 the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils
    • G01D5/2216—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 the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils by a movable ferromagnetic element, e.g. a core
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
CA2373381A 1999-05-19 2000-05-18 Position encoder utilizing fluxgate sensors Expired - Lifetime CA2373381C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/315,205 1999-05-19
US09/315,205 US6265867B1 (en) 1999-05-19 1999-05-19 Position encoder utilizing fluxgate sensors
PCT/US2000/013657 WO2000070300A1 (en) 1999-05-19 2000-05-18 Position encoder utilizing fluxgate sensors

Publications (2)

Publication Number Publication Date
CA2373381A1 CA2373381A1 (en) 2000-11-23
CA2373381C true CA2373381C (en) 2010-04-13

Family

ID=23223356

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2373381A Expired - Lifetime CA2373381C (en) 1999-05-19 2000-05-18 Position encoder utilizing fluxgate sensors

Country Status (6)

Country Link
US (1) US6265867B1 (enExample)
EP (1) EP1183498B1 (enExample)
JP (1) JP4907770B2 (enExample)
AT (1) ATE532028T1 (enExample)
CA (1) CA2373381C (enExample)
WO (1) WO2000070300A1 (enExample)

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US6949924B2 (en) * 2001-07-26 2005-09-27 Adaptive Instruments Llc Electromechanical rotation sensing device
US7521923B2 (en) * 2002-04-23 2009-04-21 Abas, Incorporated Magnetic displacement transducer
AU2003249289A1 (en) * 2002-07-17 2004-02-02 The Timken Company Apparatus and method for absolute angular position sensing
WO2004046735A1 (de) * 2002-11-20 2004-06-03 Walter Mehnert Positionsdetektor
US6853184B2 (en) * 2002-12-02 2005-02-08 Honeywell International Inc. Methods and systems for utilizing a ring magnet for magnetic sensing applications
FR2856145B1 (fr) * 2003-06-16 2005-09-02 Michelin Soc Tech Detection des revolutions d'un ensemble pneumatique et roue, a l'aide du champ magnetique terrestre.
DE602005007580D1 (de) * 2004-03-01 2008-07-31 Sagentia Ltd Positionssensor
GB0427410D0 (en) * 2004-12-14 2005-01-19 Kreit Darran Data acquisition system
DE102005010121B4 (de) * 2005-03-02 2007-09-27 Carl Freudenberg Kg Encoder
DE102005032145A1 (de) * 2005-07-07 2007-01-11 Zf Friedrichshafen Ag Gelenk für ein Kraftfahrzeug
ATE430925T1 (de) * 2005-07-11 2009-05-15 Nct Engineering Gmbh Drehwinkelsensor
GB2478691B (en) * 2006-04-13 2011-10-26 Tiax Llc An Orientation Sensor Error Reduction Method
DE102007036271A1 (de) * 2007-07-31 2009-02-05 Baumer Hübner GmbH Drehgeber mit Überwachung des Lagerverschleißes sowie Verfahren hierzu
DE102007039050B8 (de) * 2007-08-17 2024-02-15 Avago Technologies International Sales Pte. Limited Linearsegment- oder Umdrehungszähler mit einem ferromagnetischen Element
FR2926889B1 (fr) * 2008-01-30 2010-12-10 Continental Automotive France Procede de detection du deplacement d'un vehicule et dispositif correspondant
JP5108143B2 (ja) 2008-03-19 2012-12-26 サジェンティア リミテッド 処理回路構成
CA2771727C (en) 2009-11-04 2013-01-08 Technologies Numetrix Inc. Device and method for obtaining three-dimensional object surface data
DE102010055736A1 (de) * 2010-12-22 2012-06-28 Festo Ag & Co. Kg Verfahren zur Auswertung von Sensorsignalen sowie hierzu geeignete Sensoranordnung
US9562986B2 (en) * 2011-07-01 2017-02-07 Rapiscan Systems, Inc. Walk through metal detection system
US9018942B2 (en) * 2013-01-11 2015-04-28 Bourns, Inc. Position measurement using a variable flux collector
JP6233455B1 (ja) 2016-06-09 2017-11-22 愛知製鋼株式会社 回転機
US10048091B1 (en) * 2017-05-30 2018-08-14 Infineon Technologies Ag Magnetic multimedia control element
US11573072B2 (en) 2018-12-13 2023-02-07 Analog Devices International Unlimited Company Magnetic position determination systems and methods
US11519710B2 (en) 2020-02-26 2022-12-06 Honeywell Limited High accuracy and high stability magnetic displacement sensor in the presence of electromagnetic interferences
CN113639789B (zh) * 2021-07-20 2024-06-04 支付宝(杭州)信息技术有限公司 检测柜门关闭的系统和方法
EP4163600B1 (en) * 2021-10-07 2024-01-31 Renesas Electronics America Inc. Method for error detection of a position sensor and position sensor

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Also Published As

Publication number Publication date
EP1183498A1 (en) 2002-03-06
CA2373381A1 (en) 2000-11-23
US6265867B1 (en) 2001-07-24
ATE532028T1 (de) 2011-11-15
WO2000070300A1 (en) 2000-11-23
WO2000070300A9 (en) 2002-06-27
JP4907770B2 (ja) 2012-04-04
EP1183498B1 (en) 2011-11-02
EP1183498A4 (en) 2002-07-31
JP2002544509A (ja) 2002-12-24

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Effective date: 20200518