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JPS56118612A - Magnetoelectric transducer - Google Patents

Magnetoelectric transducer

Info

Publication number
JPS56118612A
JPS56118612A JP2111180A JP2111180A JPS56118612A JP S56118612 A JPS56118612 A JP S56118612A JP 2111180 A JP2111180 A JP 2111180A JP 2111180 A JP2111180 A JP 2111180A JP S56118612 A JPS56118612 A JP S56118612A
Authority
JP
Japan
Prior art keywords
magnetic field
sensor
bias
respect
magnetoelectric
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.)
Pending
Application number
JP2111180A
Other languages
Japanese (ja)
Inventor
Akiyoshi Narimatsu
Hiroyuki Okubo
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
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2111180A priority Critical patent/JPS56118612A/en
Publication of JPS56118612A publication Critical patent/JPS56118612A/en
Pending 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

Landscapes

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

Abstract

PURPOSE:To monotonously vary the detection characteristics of a magnetoelectric transducer over a wide range by employing a magnetic sensor which applies a bias magnetic field in the 45 deg. direction with respect to the bias current and a signalling magnetic field generator of given shape. CONSTITUTION:A magnetic sensor 1 is formed by a ferromagnetic metal resistance element MR1 of ferromagnetic metal thin film and which is provided with current path portions IC1 and IC2 each inclined at 45 deg. with respect to the edge portion (e) of an element board EB and a biasing magnetic field generator MGB1 which applies a bias magnetic field in the 45 deg. direction with respect to the bias currents of each of the path portions IC1 and IC2. Accordingly, the sensor MS1 performs stable magnetoelectric conversion without hysteresis and independently of the temperature change. On the other hand, a signalling magnetic field generator MGS1 is formed by a plurality of magnets Mga1..., and the width W1 of its center magentic field region is narrower than the width W2 of each of both its end magnetic field regions. Accordingly, the magnetoelectric conversion value by the sensor MS1 monotonously varies over a wide range in the positive direction or the like. Owing to said magnetoelectric conversion characteristics, an optimum magnetoelectric transducer is obtained for an analog servo, displacement transducer or the like.
JP2111180A 1980-02-22 1980-02-22 Magnetoelectric transducer Pending JPS56118612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2111180A JPS56118612A (en) 1980-02-22 1980-02-22 Magnetoelectric transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2111180A JPS56118612A (en) 1980-02-22 1980-02-22 Magnetoelectric transducer

Publications (1)

Publication Number Publication Date
JPS56118612A true JPS56118612A (en) 1981-09-17

Family

ID=12045765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2111180A Pending JPS56118612A (en) 1980-02-22 1980-02-22 Magnetoelectric transducer

Country Status (1)

Country Link
JP (1) JPS56118612A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01110215A (en) * 1987-10-23 1989-04-26 Nippon Autom:Kk Angle of rotation sensor
EP0668486A2 (en) * 1994-02-22 1995-08-23 Dr. Johannes Heidenhain GmbH Device for measuring lengths or angles
EP0676620A1 (en) * 1994-03-25 1995-10-11 Dr. Johannes Heidenhain GmbH Magnetic measuring system
US5995309A (en) * 1995-03-06 1999-11-30 Mitsubishi Denki Kabushiki Kaisha Magnetic recording medium
JP2004245765A (en) * 2003-02-17 2004-09-02 Nikon Corp Position detection device and blur correction device
JP2005531784A (en) * 2002-07-03 2005-10-20 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Position sensor using synthetic magnetic flux source

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01110215A (en) * 1987-10-23 1989-04-26 Nippon Autom:Kk Angle of rotation sensor
EP0668486A2 (en) * 1994-02-22 1995-08-23 Dr. Johannes Heidenhain GmbH Device for measuring lengths or angles
EP0668486A3 (en) * 1994-02-22 1997-07-30 Heidenhain Gmbh Dr Johannes Device for measuring lengths or angles.
EP0676620A1 (en) * 1994-03-25 1995-10-11 Dr. Johannes Heidenhain GmbH Magnetic measuring system
US5995309A (en) * 1995-03-06 1999-11-30 Mitsubishi Denki Kabushiki Kaisha Magnetic recording medium
JP2005531784A (en) * 2002-07-03 2005-10-20 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Position sensor using synthetic magnetic flux source
JP2004245765A (en) * 2003-02-17 2004-09-02 Nikon Corp Position detection device and blur correction device

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