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FR3142243B1 - High precision non-contact angular or linear magnetic position sensor - Google Patents

High precision non-contact angular or linear magnetic position sensor Download PDF

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Publication number
FR3142243B1
FR3142243B1 FR2212135A FR2212135A FR3142243B1 FR 3142243 B1 FR3142243 B1 FR 3142243B1 FR 2212135 A FR2212135 A FR 2212135A FR 2212135 A FR2212135 A FR 2212135A FR 3142243 B1 FR3142243 B1 FR 3142243B1
Authority
FR
France
Prior art keywords
position sensor
linear magnetic
high precision
magnetic position
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.)
Active
Application number
FR2212135A
Other languages
French (fr)
Other versions
FR3142243A1 (en
Inventor
Richard Arlot
Cornel Frigoli
Adrian Alfred Baumgartner
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.)
Absolute Magnetics Ag Ch
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR2212135A priority Critical patent/FR3142243B1/en
Priority to PCT/EP2023/076591 priority patent/WO2024110102A1/en
Priority to CN202380080415.1A priority patent/CN120225838A/en
Publication of FR3142243A1 publication Critical patent/FR3142243A1/en
Application granted granted Critical
Publication of FR3142243B1 publication Critical patent/FR3142243B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

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 porte sur un capteur de position magnétique (C) sans contact, angulaire ou linéaire, comportant un aimant permanent (A) générant un champ magnétique variant de façon non linéaire et au moins un premier couple de sondes associées à l’aimant permanent (A), chaque sonde étant apte à mesurer au moins deux composantes de champs en un même point. Un circuit de traitement est relié au premier couple de et est configuré pour exploiter certaines au moins des mesures fournies par le premier couple de sondes et pour délivrer un signal de position représentatif de la position absolue de l’aimant permanent (A). Figure à publier avec l’abrégé : Fig. 1The invention relates to a contactless, angular or linear magnetic position sensor (C), comprising a permanent magnet (A) generating a magnetic field varying non-linearly and at least a first pair of probes associated with the permanent magnet (A), each probe being capable of measuring at least two field components at the same point. A processing circuit is connected to the first pair and is configured to exploit at least some of the measurements provided by the first pair of probes and to deliver a position signal representative of the absolute position of the permanent magnet (A). Figure to be published with the abstract: Fig. 1

FR2212135A 2022-11-22 2022-11-22 High precision non-contact angular or linear magnetic position sensor Active FR3142243B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2212135A FR3142243B1 (en) 2022-11-22 2022-11-22 High precision non-contact angular or linear magnetic position sensor
PCT/EP2023/076591 WO2024110102A1 (en) 2022-11-22 2023-09-26 High-precision angular or linear non-contact magnetic position sensor
CN202380080415.1A CN120225838A (en) 2022-11-22 2023-09-26 High precision angle or linear non-contact magnetic position sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2212135 2022-11-22
FR2212135A FR3142243B1 (en) 2022-11-22 2022-11-22 High precision non-contact angular or linear magnetic position sensor

Publications (2)

Publication Number Publication Date
FR3142243A1 FR3142243A1 (en) 2024-05-24
FR3142243B1 true FR3142243B1 (en) 2025-03-07

Family

ID=85018066

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2212135A Active FR3142243B1 (en) 2022-11-22 2022-11-22 High precision non-contact angular or linear magnetic position sensor

Country Status (3)

Country Link
CN (1) CN120225838A (en)
FR (1) FR3142243B1 (en)
WO (1) WO2024110102A1 (en)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3870879D1 (en) * 1988-10-13 1992-06-11 Siemens Ag ARRANGEMENT FOR CONTACT-FREE DETECTION OF THE SPEED OF A ROTATING GEAR.
EP1083406A3 (en) 1999-09-09 2002-03-20 Delphi Technologies, Inc. Rotary position sensor
JP4470577B2 (en) 2004-05-14 2010-06-02 株式会社デンソー Rotation angle detector
US7741839B2 (en) 2005-10-20 2010-06-22 Cts Corporation Non-contacting position sensor using a rotating magnetic vector
EP1777501A1 (en) * 2005-10-24 2007-04-25 Getrag Ford Transmissions GmbH Position sensor system for contactless positioning by means of redundant magnetosensitive sensor elements
FR2893410B1 (en) 2005-11-15 2008-12-05 Moving Magnet Tech Mmt MAGNETIC ANGULAR POSITION SENSOR FOR RACE UP TO 360
FR2898189B1 (en) 2006-03-02 2008-10-17 Moving Magnet Tech POSITION SENSOR WITH VARIABLE MAGNET DIRECTION AND METHOD OF MAKING SAME
FR2923903B1 (en) 2007-11-20 2010-01-08 Moving Magnet Tech ANGULAR OR LINEAR MAGNETIC POSITION SENSOR HAVING EXTERNAL FIELD INSENSITIVITY
FR2965347B1 (en) 2010-09-29 2015-04-03 Moving Magnet Tech IMPROVED POSITION SENSOR
EP2711663B1 (en) 2012-09-25 2015-11-04 Vishay MCB Industrie High-precision device for magnetic and/or electromagnetic measurement of an angular position of a point
EP3588011B1 (en) * 2018-06-26 2022-05-25 Melexis Technologies SA Position sensor system and method, robust against disturbance field
US20210255003A1 (en) * 2018-06-28 2021-08-19 Agency For Science, Technology, And Research A magnetic encoder
FR3118804B1 (en) 2021-01-14 2023-02-10 Richard Arlot Non-contact position sensor comprising a permanent magnet.

Also Published As

Publication number Publication date
FR3142243A1 (en) 2024-05-24
CN120225838A (en) 2025-06-27
WO2024110102A1 (en) 2024-05-30

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Legal Events

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PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20240524

TP Transmission of property

Owner name: ABSOLUTE MAGNETICS AG, CH

Effective date: 20240618

PLFP Fee payment

Year of fee payment: 3