WO2009153580A3 - Dispositif et procédé de détection de position - Google Patents

Dispositif et procédé de détection de position Download PDF

Info

Publication number
WO2009153580A3
WO2009153580A3 PCT/GB2009/001563 GB2009001563W WO2009153580A3 WO 2009153580 A3 WO2009153580 A3 WO 2009153580A3 GB 2009001563 W GB2009001563 W GB 2009001563W WO 2009153580 A3 WO2009153580 A3 WO 2009153580A3
Authority
WO
WIPO (PCT)
Prior art keywords
aerial
electromagnetic coupling
strength
sensing apparatus
position sensing
Prior art date
Application number
PCT/GB2009/001563
Other languages
English (en)
Other versions
WO2009153580A2 (fr
Inventor
Jonathan Michael Hayes
Original Assignee
Tt Electronics Technology Limited
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 Tt Electronics Technology Limited filed Critical Tt Electronics Technology Limited
Priority to EP09766141A priority Critical patent/EP2304390A2/fr
Publication of WO2009153580A2 publication Critical patent/WO2009153580A2/fr
Publication of WO2009153580A3 publication Critical patent/WO2009153580A3/fr

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
    • 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
    • G01D5/204—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 by influencing the mutual induction between two or more coils
    • G01D5/2053—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 by influencing the mutual induction between two or more coils by a movable non-ferromagnetic conductive element
    • G01D5/206—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 by influencing the mutual induction between two or more coils by a movable non-ferromagnetic conductive element constituting a short-circuiting element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
    • 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
    • G01D5/204—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 by influencing the mutual induction between two or more coils
    • G01D5/2073—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 by influencing the mutual induction between two or more coils by movement of a single coil with respect to two or more coils

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Détecteur de position inductif dans lequel le couplage électromagnétique enter une première et une seconde antenne varie en fonction de la position relative d'un premier et d'un second élément dans une direction de mesure, le couplage électromagnétique entre la première antenne et une troisième antenne ne variant pas avec la position relative. La force du signal d'excitation appliqué soit à la première, soit à la seconde antenne est ajustée au moyen d'une boucle de rétroaction pour que la force d'un signal représentative du couplage électromagnétique entre la première antenne et la troisième antenne corresponde à un niveau de référence.
PCT/GB2009/001563 2008-06-20 2009-06-22 Dispositif et procédé de détection de position WO2009153580A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09766141A EP2304390A2 (fr) 2008-06-20 2009-06-22 Dispositif et procédé de détection de position

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0811418.3 2008-06-20
GB0811418.3A GB2461099B (en) 2008-06-20 2008-06-20 Position sensing apparatus and method

Publications (2)

Publication Number Publication Date
WO2009153580A2 WO2009153580A2 (fr) 2009-12-23
WO2009153580A3 true WO2009153580A3 (fr) 2010-03-11

Family

ID=39682949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/001563 WO2009153580A2 (fr) 2008-06-20 2009-06-22 Dispositif et procédé de détection de position

Country Status (3)

Country Link
EP (1) EP2304390A2 (fr)
GB (1) GB2461099B (fr)
WO (1) WO2009153580A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109477732A (zh) * 2016-06-17 2019-03-15 薄膜电子有限公司 用于检测打开或关闭的容器的无线机构及其制造和使用方法
DE112018008038T5 (de) * 2018-10-16 2021-06-24 Ab Elektronik Gmbh Positionserfassungsvorrichtung und Verfahren
US10760928B1 (en) * 2019-02-21 2020-09-01 Microsemi Corporation Planar linear inductive position sensor having edge effect compensation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273052A (en) * 1958-03-03 1966-09-13 Langham Eric Miles Inductive position indicator system
GB2337335A (en) * 1998-05-15 1999-11-17 Algonquin Scient Llc Tire pressure sensing system
DE10016540C1 (de) * 2000-03-03 2001-07-19 Balluff Gebhard Gmbh & Co Induktiver Messaufnehmer und Verfahren zu seiner Kalibrierung
DE10219678C1 (de) * 2002-05-02 2003-06-26 Balluff Gmbh Induktiver Wegmessaufnehmer mit einen passiven Resonanzkreis aufweisendem Messkopf

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0303627D0 (en) * 2003-02-17 2003-03-19 Sensopad Technologies Ltd Sensing method and apparatus
US6999007B2 (en) * 2003-05-15 2006-02-14 Delphi Technologies, Inc. Linear position sensor
GB0417686D0 (en) * 2004-08-09 2004-09-08 Sensopad Ltd Novel targets for inductive sensing applications
EP1789756A2 (fr) * 2004-08-09 2007-05-30 Sensopad Limited Appareil et procede de detection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273052A (en) * 1958-03-03 1966-09-13 Langham Eric Miles Inductive position indicator system
GB2337335A (en) * 1998-05-15 1999-11-17 Algonquin Scient Llc Tire pressure sensing system
DE10016540C1 (de) * 2000-03-03 2001-07-19 Balluff Gebhard Gmbh & Co Induktiver Messaufnehmer und Verfahren zu seiner Kalibrierung
DE10219678C1 (de) * 2002-05-02 2003-06-26 Balluff Gmbh Induktiver Wegmessaufnehmer mit einen passiven Resonanzkreis aufweisendem Messkopf

Also Published As

Publication number Publication date
EP2304390A2 (fr) 2011-04-06
GB2461099A (en) 2009-12-23
GB2461099B (en) 2012-02-08
WO2009153580A2 (fr) 2009-12-23
GB0811418D0 (en) 2008-07-30

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