WO2004113844A3 - Capteur magnetique de position a fuites magnetiques controlees - Google Patents

Capteur magnetique de position a fuites magnetiques controlees Download PDF

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Publication number
WO2004113844A3
WO2004113844A3 PCT/FR2004/001507 FR2004001507W WO2004113844A3 WO 2004113844 A3 WO2004113844 A3 WO 2004113844A3 FR 2004001507 W FR2004001507 W FR 2004001507W WO 2004113844 A3 WO2004113844 A3 WO 2004113844A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
magnetic flux
location
determining
creating
Prior art date
Application number
PCT/FR2004/001507
Other languages
English (en)
Other versions
WO2004113844A2 (fr
Inventor
Olivier Andrieu
Laurent Dufour
Original Assignee
Electricfil Automotive
Olivier Andrieu
Laurent Dufour
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 Electricfil Automotive, Olivier Andrieu, Laurent Dufour filed Critical Electricfil Automotive
Priority to US10/560,295 priority Critical patent/US20060164074A1/en
Priority to EP04767368A priority patent/EP1634037A2/fr
Priority to JP2006516299A priority patent/JP2006527844A/ja
Publication of WO2004113844A2 publication Critical patent/WO2004113844A2/fr
Publication of WO2004113844A3 publication Critical patent/WO2004113844A3/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
    • G01D5/142—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 using Hall-effect devices
    • G01D5/145—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 using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles

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

L'invention concerne un capteur magnétique pour déterminer la position d'un mobile (2) évoluant selon un axe de déplacement (T), le capteur comportant : - un circuit magnétique (3) ouvert en délimitant au moins un entrefer (8) et comportant des moyens (4) de création d'un flux magnétique, - au moins une première cellule de mesure (11) montée fixe dans le circuit magnétique (3) et apte à mesurer la valeur du flux magnétique, - des moyens de traitement du signal de sortie délivré par la cellule de mesure (11) pour déterminer la position linéaire du mobile le long de l'axe de déplacement. Selon l'invention : - le circuit magnétique (3) comporte également au moins une pièce polaire (5) associée aux moyens de création d'un flux magnétique, - la cellule de mesure (11) est montée à proximité d'un point extrême de déplacement de manière à mesurer le flux magnétique délivré par les moyens de création (4) diminué du flux magnétique de fuite.
PCT/FR2004/001507 2003-06-17 2004-06-17 Capteur magnetique de position a fuites magnetiques controlees WO2004113844A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/560,295 US20060164074A1 (en) 2003-06-17 2004-06-17 Magnetic sensor for determining the location of controlled magnetic leakages
EP04767368A EP1634037A2 (fr) 2003-06-17 2004-06-17 Capteur magnetique de position a fuites magnetiques controlees
JP2006516299A JP2006527844A (ja) 2003-06-17 2004-06-17 制御された磁気漏洩の位置を判定するための磁気センサ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307277 2003-06-17
FR0307277A FR2856474B1 (fr) 2003-06-17 2003-06-17 Capteur magnetique de position a fuites magnetiques controlees

Publications (2)

Publication Number Publication Date
WO2004113844A2 WO2004113844A2 (fr) 2004-12-29
WO2004113844A3 true WO2004113844A3 (fr) 2005-03-24

Family

ID=33484500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/001507 WO2004113844A2 (fr) 2003-06-17 2004-06-17 Capteur magnetique de position a fuites magnetiques controlees

Country Status (5)

Country Link
US (1) US20060164074A1 (fr)
EP (1) EP1634037A2 (fr)
JP (1) JP2006527844A (fr)
FR (1) FR2856474B1 (fr)
WO (1) WO2004113844A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2885687B1 (fr) * 2005-05-11 2007-12-21 Electricfil Automotive Soc Par Dispositif pour determiner la hauteur du chassis d'un vehicule
JP4924825B2 (ja) * 2007-06-21 2012-04-25 村田機械株式会社 電磁誘導式リニアスケール
US8917086B2 (en) * 2010-07-20 2014-12-23 Lawrence Livermore National Security, Llc Position sensor for linear synchronous motors employing halbach arrays
US9448087B2 (en) * 2011-10-10 2016-09-20 Methode Electronics, Inc. Contactless magnetic linear position sensor
DE102014223884A1 (de) * 2014-11-24 2016-05-25 Micro-Epsilon Messtechnik Gmbh & Co. Kg Sensoranordnung und Verfahren zum Bestimmen einer Position und/oder einer Positionsänderungeines Messobjekts
DE102021118302A1 (de) * 2021-07-15 2023-01-19 Bürkert Werke GmbH & Co. KG Ventil mit einer Positionserfassungseinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325787A2 (fr) * 1987-12-29 1989-08-02 Eaton Corporation Capteur de position d'un arbre à plusieurs tours
DE3803293A1 (de) * 1988-02-04 1989-08-17 Turck Werner Kg Magnetisch betaetigter analoger elektrischer wegaufnehmer fuer geradlinige bewegungen
EP1158275A1 (fr) * 2000-05-23 2001-11-28 Sagem Sa Capteur de position axiale
FR2829573A1 (fr) * 2001-09-11 2003-03-14 Siemens Automotive Sa Capteur magnetique de la position d'un mobile sur une trajectoire suivie par le mobile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0595553B1 (fr) * 1992-10-29 1996-12-27 Rolls-Royce And Associates Limited Capteurs de position perfectionés
JP3395402B2 (ja) * 1994-10-14 2003-04-14 住友電気工業株式会社 移動量検出器
US6486657B2 (en) * 2001-02-09 2002-11-26 Delphi Technologies, Inc. Malfunction detector for magnetoresistor speed and position sensors
US7208939B2 (en) * 2001-02-28 2007-04-24 Bvr Technologies Co. Methods and apparatus for sensing angular position and speed of a rotatable shaft utilizing linearized annular magnet and commutated ratiometric hall sensors
DE10113871A1 (de) * 2001-03-21 2002-09-26 Philips Corp Intellectual Pty Anordnung zur Positions-, Winkel- oder Drehzahlbestimmung
US6614223B2 (en) * 2001-08-14 2003-09-02 Delphi Technologies, Inc. Analog angle encoder having a single piece magnet assembly surrounding an air gap
US6798195B2 (en) * 2001-12-14 2004-09-28 Wabash Technologies, Inc. Magnetic position sensor having shaped pole pieces at least partially formed of a non-magnetic material for producing a magnetic field having varying magnetic flux density along an axis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325787A2 (fr) * 1987-12-29 1989-08-02 Eaton Corporation Capteur de position d'un arbre à plusieurs tours
DE3803293A1 (de) * 1988-02-04 1989-08-17 Turck Werner Kg Magnetisch betaetigter analoger elektrischer wegaufnehmer fuer geradlinige bewegungen
EP1158275A1 (fr) * 2000-05-23 2001-11-28 Sagem Sa Capteur de position axiale
FR2829573A1 (fr) * 2001-09-11 2003-03-14 Siemens Automotive Sa Capteur magnetique de la position d'un mobile sur une trajectoire suivie par le mobile

Also Published As

Publication number Publication date
JP2006527844A (ja) 2006-12-07
US20060164074A1 (en) 2006-07-27
EP1634037A2 (fr) 2006-03-15
WO2004113844A2 (fr) 2004-12-29
FR2856474B1 (fr) 2005-10-21
FR2856474A1 (fr) 2004-12-24

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