FR2452716A1 - Capteur magnetique - Google Patents

Capteur magnetique

Info

Publication number
FR2452716A1
FR2452716A1 FR8007097A FR8007097A FR2452716A1 FR 2452716 A1 FR2452716 A1 FR 2452716A1 FR 8007097 A FR8007097 A FR 8007097A FR 8007097 A FR8007097 A FR 8007097A FR 2452716 A1 FR2452716 A1 FR 2452716A1
Authority
FR
France
Prior art keywords
magnetoresistive element
magnetic sensor
magnetism
sensor
correspondence
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.)
Granted
Application number
FR8007097A
Other languages
English (en)
Other versions
FR2452716B1 (fr
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.)
Sony Corp
Original Assignee
Sony Corp
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
Priority claimed from JP54036847A external-priority patent/JPS6040197B2/ja
Priority claimed from JP54036845A external-priority patent/JPS6040196B2/ja
Priority claimed from JP13728979A external-priority patent/JPS5661184A/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2452716A1 publication Critical patent/FR2452716A1/fr
Application granted granted Critical
Publication of FR2452716B1 publication Critical patent/FR2452716B1/fr
Granted legal-status Critical Current

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
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
    • 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
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • 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
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/096—Magnetoresistive devices anisotropic magnetoresistance sensors

Abstract

L'INVENTION CONCERNE UN CAPTEUR MAGNETIQUE DESTINE A MESURER LE MAGNETISME D'UN ELEMENT MAGNETORESISTIF UTILISANT L'EFFET DE MAGNETORESISTANCE DES MATERIAUX FERROMAGNETIQUES. DANS L'ELEMENT MAGNETORESISTIF 1, UNE AIRE 2 DE DETECTION DE MAGNETISME FORMEE D'UNE PELLICULE EN METAL FERROMAGNETIQUE EST DIVISEE EN AU MOINS DEUX REGIONS A ET A ET EST SATUREE MAGNETIQUEMENT PAR DES CHAMPS MAGNETIQUES H ET H RESPECTIVEMENT AFFECTES AUX SURFACES A ET A ET PRESENTANT DES DIRECTIONS DIFFERENTES. LA RESISTANCE DE L'ELEMENT MAGNETORESISTIF VARIE EN CORRESPONDANCE AVEC LE RAPPORT DE DIVISION. LE CAPTEUR DE L'INVENTION S'APPLIQUE NOTAMMENT A LA MESURE DES DEPLACEMENTS FINS.
FR8007097A 1979-03-30 1980-03-28 Capteur magnetique Granted FR2452716A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP54036847A JPS6040197B2 (ja) 1979-03-30 1979-03-30 磁電変換装置
JP54036845A JPS6040196B2 (ja) 1979-03-30 1979-03-30 磁電変換装置
JP13728979A JPS5661184A (en) 1979-10-24 1979-10-24 Magneto electro transducer

Publications (2)

Publication Number Publication Date
FR2452716A1 true FR2452716A1 (fr) 1980-10-24
FR2452716B1 FR2452716B1 (fr) 1985-03-15

Family

ID=27289243

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8007097A Granted FR2452716A1 (fr) 1979-03-30 1980-03-28 Capteur magnetique

Country Status (6)

Country Link
US (1) US4361805A (fr)
CH (1) CH656468A5 (fr)
DE (1) DE3011462A1 (fr)
FR (1) FR2452716A1 (fr)
GB (1) GB2052855B (fr)
IT (1) IT1130374B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495859A1 (fr) * 1980-12-09 1982-06-11 Sony Corp Dispositif de commutation a capteur magnetique
EP0093870A2 (fr) * 1982-03-29 1983-11-16 Kangyo Denkikiki Kabushiki Kaisha Elément magnéto-résistif
WO1986000877A1 (fr) * 1984-07-20 1986-02-13 Robert Bosch Gmbh Detecteur a magnetoresistance pour la production de signaux electriques
EP0234458A2 (fr) * 1986-02-19 1987-09-02 Alcatel SEL Aktiengesellschaft Sonde de proximité
EP0306178A2 (fr) * 1987-08-18 1989-03-08 Fujitsu Limited Capteur d'accélération
FR2659146A1 (fr) * 1990-03-02 1991-09-06 Sagem Dispositif de mesure d'un champ magnetique a l'aide d'au moins un barreau magnetoresistant.
EP0620416A1 (fr) * 1993-04-10 1994-10-19 Dr. Johannes Heidenhain GmbH Système de mesure magnétique
US5841275A (en) * 1994-03-25 1998-11-24 Johannes Heidenhain Gmbh Magnetic measuring system having a particularly oriented auxiliary field
FR2953286A1 (fr) * 2009-11-27 2011-06-03 Electricfil Automotive Procede et capteur magnetique de mesure pour la detection sans contact de mouvements

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477794A (en) * 1981-08-10 1984-10-16 Matsushita Electric Industrial Co., Ltd. Magnetoresistive element
DE3279790D1 (en) * 1981-12-09 1989-08-03 Matsushita Electric Ind Co Ltd Thin film magnetic head
US4616281A (en) * 1982-03-10 1986-10-07 Copal Company Limited Displacement detecting apparatus comprising magnetoresistive elements
US4731579A (en) * 1982-10-12 1988-03-15 Polaroid Corporation Magnetic position indicator and actuator using same
CA1209260A (fr) * 1982-10-29 1986-08-05 Tetsuo Sekiya Transducteur magnetique agissant par magnetoresistance
JPS601514A (ja) * 1983-06-17 1985-01-07 Copal Co Ltd 変位量検出器
DE3447326A1 (de) * 1984-12-24 1986-07-10 Standard Elektrik Lorenz Ag Magnetfelddetektor
DE3447325A1 (de) * 1984-12-24 1986-06-26 Standard Elektrik Lorenz Ag Positionsgeber
DE3514457A1 (de) * 1985-04-22 1987-01-02 Messtechnik Mellenbach Betrieb Anordnung zur betrags- und richtungsmaessigen messung von magnetfeldern
US4835509A (en) * 1986-07-29 1989-05-30 Nippondenso Co., Ltd. Noncontact potentiometer
JP2556851B2 (ja) * 1987-03-02 1996-11-27 三菱化学株式会社 磁気抵抗素子
DE69029153T2 (de) * 1989-01-18 1997-06-19 Nippon Denso Co Vorrichtung zur magnetischen Detektion und Vorrichtung zur Detektion einer physikalischen Grösse, die sie verwendet
JPH02129882U (fr) * 1989-03-31 1990-10-25
JPH02271216A (ja) * 1989-04-13 1990-11-06 Hitachi Metals Ltd 磁気式エンコーダ
US5589768A (en) * 1990-07-30 1996-12-31 Mitsubishi Steel Mfg. Co., Ltd. Magnetoresistance-effect magnetic sensor of the temperature compensating type
JPH04166906A (ja) * 1990-10-31 1992-06-12 Sony Corp レンズ鏡筒の初期位置検出装置
US5038130A (en) * 1990-11-06 1991-08-06 Santa Barbara Research Center System for sensing changes in a magnetic field
DE4212737C1 (en) * 1992-04-16 1993-07-08 Leica Mikroskopie Und Systeme Gmbh Compact bridge-connected sensor - has thin-film resistors on substrate
DE4232244C2 (de) * 1992-09-25 1998-05-14 Siemens Ag Magnetowiderstands-Sensor
DE9301302U1 (de) * 1993-01-30 1994-05-26 Turck Werner Kg Näherungsschalter
JP3186403B2 (ja) * 1993-03-11 2001-07-11 富士通株式会社 磁気的センサおよび信号変換回路
FR2709600B1 (fr) * 1993-09-02 1995-09-29 Commissariat Energie Atomique Composant et capteur magnétorésistifs à motif géométrique répété.
DE59410163D1 (de) * 1993-12-22 2002-09-05 Continental Teves Ag & Co Ohg Vorrichtung zur erfassung von dreh- oder winkelbewegungen
DE4442371A1 (de) * 1994-11-29 1996-05-30 Heidenhain Gmbh Dr Johannes Maßverkörperung
US5767668A (en) * 1996-01-18 1998-06-16 Case Western Reserve University Remote current sensor
US5936400A (en) * 1996-12-23 1999-08-10 Federal Products Co. Magnetoresistive displacement sensor and variable resistor using a moving domain wall
DE19737931C1 (de) * 1997-08-30 1999-02-04 Inst Physikalische Hochtech Ev Magnetoresistiver Streifenleiter und Magnetfeldsensor zum Erfassen eines Magnetfeldes
DE19757008A1 (de) * 1997-12-20 1999-06-24 Bosch Gmbh Robert Sensoranordnung zur Erfassung von Winkeländerungen
US6097183A (en) * 1998-04-14 2000-08-01 Honeywell International Inc. Position detection apparatus with correction for non-linear sensor regions
DK174336B1 (da) 1998-06-30 2002-12-09 3D Sensor Aps Berøringsløs vinkelmåler
US6714000B2 (en) * 1999-06-14 2004-03-30 Genscape, Inc. Method for monitoring power and current flow
WO2001079872A1 (fr) 2000-04-13 2001-10-25 Genscape, Inc. Appareil et procede de mesure et de surveillance de la generation et de la transmission de courant electrique
US6670805B1 (en) 2000-09-22 2003-12-30 Alliant Techsystems Inc. Displacement sensor containing magnetic field sensing element between a pair of biased magnets movable as a unit
US20030117208A1 (en) * 2001-12-21 2003-06-26 Bicking Robert E. InSb signal-conditioning circuit with built-in temperature compensation
JP4244807B2 (ja) * 2001-12-27 2009-03-25 パナソニック株式会社 方位センサ
EP1811311B1 (fr) * 2006-01-19 2016-08-31 Melexis Technologies NV Dispositif pour mesurer le courant
FR2902890B1 (fr) * 2006-06-22 2008-11-07 Commissariat Energie Atomique Procede et systeme pour ajuster la sensibilite d'un capteur magnetoresistif
US7728720B2 (en) * 2006-07-28 2010-06-01 Deere & Company System and method for monitoring a status of a member of a vehicle
US8564286B2 (en) * 2010-06-28 2013-10-22 Infineon Technologies Ag GMR sensors having reduced AMR effects
JP5215370B2 (ja) * 2010-11-22 2013-06-19 三菱電機株式会社 磁気式位置検出装置
US8952686B2 (en) * 2011-10-25 2015-02-10 Honeywell International Inc. High current range magnetoresistive-based current sensor
US9372242B2 (en) * 2012-05-11 2016-06-21 Memsic, Inc. Magnetometer with angled set/reset coil
CN103576101A (zh) * 2012-07-31 2014-02-12 北京嘉岳同乐极电子有限公司 一种多通道集成式磁传感器
JP6406245B2 (ja) * 2013-03-18 2018-10-17 日立金属株式会社 磁気センサ
JP6472175B2 (ja) 2014-06-09 2019-02-20 Dmg森精機株式会社 位置検出装置
WO2016163171A1 (fr) * 2015-04-06 2016-10-13 株式会社村田製作所 Dispositif de détection de surface de liquide
JP6620834B2 (ja) 2018-03-27 2019-12-18 Tdk株式会社 磁気センサおよび磁気センサシステム
CN111948583A (zh) * 2019-05-17 2020-11-17 爱盛科技股份有限公司 磁场感测装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949346A (en) * 1973-11-17 1976-04-06 Sony Corporation Magnetoresistive element
GB1477925A (en) * 1973-06-12 1977-06-29 Siemens Ag Arrangements for the production of electric signals by means of magnetoresistive components
US4079360A (en) * 1974-07-26 1978-03-14 Sony Corporation Magnetic field sensing apparatus

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Publication number Priority date Publication date Assignee Title
US4029360A (en) * 1974-07-26 1977-06-14 Occidental Oil Shale, Inc. Method of recovering oil and water from in situ oil shale retort flue gas
JPS5927115B2 (ja) * 1974-12-29 1984-07-03 ソニー株式会社 情報検出装置
US4296377A (en) * 1978-03-27 1981-10-20 Sony Corporation Magnetic signal field sensor that is substantially immune to angular displacement relative to the signal field

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1477925A (en) * 1973-06-12 1977-06-29 Siemens Ag Arrangements for the production of electric signals by means of magnetoresistive components
US3949346A (en) * 1973-11-17 1976-04-06 Sony Corporation Magnetoresistive element
US4079360A (en) * 1974-07-26 1978-03-14 Sony Corporation Magnetic field sensing apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JEE, JOURNAL OF ELECTRONIC ENGINEERING, no. 105, août 1975, TOKYO (JP) Y. MAKINO: "New breed of magneto-resistance element solves magnetic sensing problems", pages 34-38 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495859A1 (fr) * 1980-12-09 1982-06-11 Sony Corp Dispositif de commutation a capteur magnetique
EP0093870A2 (fr) * 1982-03-29 1983-11-16 Kangyo Denkikiki Kabushiki Kaisha Elément magnéto-résistif
EP0093870A3 (en) * 1982-03-29 1986-10-08 Kangyo Denkikiki Kabushiki Kaisha Magnetoresistive element
WO1986000877A1 (fr) * 1984-07-20 1986-02-13 Robert Bosch Gmbh Detecteur a magnetoresistance pour la production de signaux electriques
EP0234458A2 (fr) * 1986-02-19 1987-09-02 Alcatel SEL Aktiengesellschaft Sonde de proximité
EP0234458A3 (fr) * 1986-02-19 1988-12-21 Alcatel SEL Aktiengesellschaft Sonde de proximité
EP0306178A2 (fr) * 1987-08-18 1989-03-08 Fujitsu Limited Capteur d'accélération
EP0306178A3 (fr) * 1987-08-18 1990-01-17 Fujitsu Limited Capteur d'accélération
FR2659146A1 (fr) * 1990-03-02 1991-09-06 Sagem Dispositif de mesure d'un champ magnetique a l'aide d'au moins un barreau magnetoresistant.
EP0524363A1 (fr) * 1990-03-02 1993-01-27 Societe D'applications Generales D'electricite Et De Mecanique Sagem Dispositif de mesure d'un champ magnétique à l'aide d'au moins un barreau magnétorésistant
EP0620416A1 (fr) * 1993-04-10 1994-10-19 Dr. Johannes Heidenhain GmbH Système de mesure magnétique
US5619132A (en) * 1993-04-10 1997-04-08 Johannes Heidenhain Gmbh Position measuring device employing primary and auxiliary magnetic fields
US5841275A (en) * 1994-03-25 1998-11-24 Johannes Heidenhain Gmbh Magnetic measuring system having a particularly oriented auxiliary field
FR2953286A1 (fr) * 2009-11-27 2011-06-03 Electricfil Automotive Procede et capteur magnetique de mesure pour la detection sans contact de mouvements
WO2011077022A1 (fr) 2009-11-27 2011-06-30 Electricfil Automotive Procede et capteur magnetique de mesure pour la detection sans contact de mouvements

Also Published As

Publication number Publication date
IT1130374B (it) 1986-06-11
IT8021051A0 (it) 1980-03-28
DE3011462C2 (fr) 1992-08-06
GB2052855B (en) 1983-05-18
CH656468A5 (de) 1986-06-30
FR2452716B1 (fr) 1985-03-15
GB2052855A (en) 1981-01-28
US4361805A (en) 1982-11-30
DE3011462A1 (de) 1980-10-16

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