FR3079927B1 - MAGNETIC POSITION SENSOR - Google Patents

MAGNETIC POSITION SENSOR Download PDF

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Publication number
FR3079927B1
FR3079927B1 FR1853032A FR1853032A FR3079927B1 FR 3079927 B1 FR3079927 B1 FR 3079927B1 FR 1853032 A FR1853032 A FR 1853032A FR 1853032 A FR1853032 A FR 1853032A FR 3079927 B1 FR3079927 B1 FR 3079927B1
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FR
France
Prior art keywords
magnetized body
magnetized
slot
position sensor
thickness
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
FR1853032A
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French (fr)
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FR3079927A1 (en
Inventor
Nikola Jerance
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.)
EFI Automotive SA
Original Assignee
Electricfil Automotive SAS
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 SAS filed Critical Electricfil Automotive SAS
Priority to FR1853032A priority Critical patent/FR3079927B1/en
Publication of FR3079927A1 publication Critical patent/FR3079927A1/en
Application granted granted Critical
Publication of FR3079927B1 publication Critical patent/FR3079927B1/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

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

Abstract

L'invention propose un capteur de position magnétique du type dans lequel le corps aimanté est aimanté selon une direction d'aimantation constante sur toute l'extension du corps aimanté et dans lequel une cellule de mesure détermine des valeurs représentatives de l'orientation du champ magnétique (B) créé par un corps aimanté au point de mesure ; caractérisé en que le corps aimanté présente au moins une fente de séparation (13) séparant des portions pleines (11, 12) du corps aimanté, la fente de séparation étant allongée entre les deux positions relatives extrêmes selon le premier axe de déplacement relatif. La fente de séparation peut notamment être un fente partielle sur l'épaisseur (ep10) du corps aimanté, formée par une rainure dans le corps aimanté, ou un une fente complète sur l'épaisseur du corps aimanté, formant un espace entre au moins deux fragments distincts (11, 12) du corps aimanté.The invention provides a magnetic position sensor of the type in which the magnetized body is magnetized in a constant magnetization direction over the entire extension of the magnetized body and in which a measuring cell determines values representative of the orientation of the field. magnetic (B) created by a magnetized body at the measuring point; characterized in that the magnetized body has at least one separation slot (13) separating solid portions (11, 12) of the magnetized body, the separation slot being elongated between the two extreme relative positions along the first relative displacement axis. The separation slot can in particular be a partial slot on the thickness (ep10) of the magnetized body, formed by a groove in the magnetized body, or a complete slot on the thickness of the magnetized body, forming a space between at least two distinct fragments (11, 12) of the magnetized body.

FR1853032A 2018-04-06 2018-04-06 MAGNETIC POSITION SENSOR Active FR3079927B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1853032A FR3079927B1 (en) 2018-04-06 2018-04-06 MAGNETIC POSITION SENSOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1853032 2018-04-06
FR1853032A FR3079927B1 (en) 2018-04-06 2018-04-06 MAGNETIC POSITION SENSOR

Publications (2)

Publication Number Publication Date
FR3079927A1 FR3079927A1 (en) 2019-10-11
FR3079927B1 true FR3079927B1 (en) 2020-11-20

Family

ID=62751101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1853032A Active FR3079927B1 (en) 2018-04-06 2018-04-06 MAGNETIC POSITION SENSOR

Country Status (1)

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FR (1) FR3079927B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3082615B1 (en) 2018-06-15 2020-10-16 Electricfil Automotive METHOD OF DETERMINING A RELATIVE ANGULAR POSITION BETWEEN TWO PIECES
FR3087256B1 (en) 2018-10-15 2020-10-30 Electricfil Automotive METHOD AND SENSOR SYSTEM FOR DETERMINING A RELATIVE ANGULAR POSITION BETWEEN TWO PIECES, AND METHOD OF MANUFACTURING A MAGNETIC BODY

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4470577B2 (en) * 2004-05-14 2010-06-02 株式会社デンソー Rotation angle detector
JP4376150B2 (en) * 2004-08-06 2009-12-02 株式会社デンソー Rotation angle detector
JP4853496B2 (en) * 2007-07-30 2012-01-11 株式会社デンソー Position detection sensor

Also Published As

Publication number Publication date
FR3079927A1 (en) 2019-10-11

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