JPS5661184A - Magneto electro transducer - Google Patents

Magneto electro transducer

Info

Publication number
JPS5661184A
JPS5661184A JP13728979A JP13728979A JPS5661184A JP S5661184 A JPS5661184 A JP S5661184A JP 13728979 A JP13728979 A JP 13728979A JP 13728979 A JP13728979 A JP 13728979A JP S5661184 A JPS5661184 A JP S5661184A
Authority
JP
Japan
Prior art keywords
magnetic fields
parallel
magnetic
bias
magnetic field
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
JP13728979A
Other languages
Japanese (ja)
Other versions
JPS6214956B2 (en
Inventor
Akiyoshi Narimatsu
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 JP13728979A priority Critical patent/JPS5661184A/en
Priority to GB8009601A priority patent/GB2052855B/en
Priority to DE19803011462 priority patent/DE3011462A1/en
Priority to US06/134,543 priority patent/US4361805A/en
Priority to CH2434/80A priority patent/CH656468A5/en
Priority to FR8007097A priority patent/FR2452716A1/en
Priority to IT21051/80A priority patent/IT1130374B/en
Publication of JPS5661184A publication Critical patent/JPS5661184A/en
Publication of JPS6214956B2 publication Critical patent/JPS6214956B2/ja
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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Hall/Mr Elements (AREA)

Abstract

PURPOSE:To improve a magneto electro transducer in temperature characteristics by magnetizing a magnetoresistance element in one direction by using a saturation bias magnetic field, the element having a current passage where a bias current flows, as well as arranging the element so as to be relatable to a plurality of parallel magnetic fields having a different direction from it in order to form composite magnetic fields. CONSTITUTION:Parallel magnetic poles S1, N1, S2 and N2 form parallel signal magnetic fields HS whose direction successively changes by pi: S-N-S-N.A magnetoresistance thin-film element MR0 is arranged in parallel with the equimagnetic-potential surface of the magnetic fields HS. The direction of a bias magnetic field HB applied to a current passage IC0 of the element MR0 is made perpendicular to the longitudinal direction of the element MR0. Therefore, composite magnetic fields HA1 and HA2 composed of the signal magnetic fields HS and the bias magnetic field HB have the same direction between the magnetic poles S1 and N1, and S2 and N2. At the same time, a composite magnetic field HA3 has the different direction from the magnetic fields HA1 and HA2 between the magnetic poles N1 and S2. Thus, the displacement value produced when a current is applied across power supply terminals T1 and T2 is improved, and an output with the temperature compensated is drawn from an output terminal T3.
JP13728979A 1979-03-30 1979-10-24 Magneto electro transducer Granted JPS5661184A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP13728979A JPS5661184A (en) 1979-10-24 1979-10-24 Magneto electro transducer
GB8009601A GB2052855B (en) 1979-03-30 1980-03-21 Magnetoresistive transducers
DE19803011462 DE3011462A1 (en) 1979-03-30 1980-03-25 MAGNETIC SENSOR
US06/134,543 US4361805A (en) 1979-03-30 1980-03-27 Magnetoresistive displacement sensor arrangement
CH2434/80A CH656468A5 (en) 1979-03-30 1980-03-27 MAGNETORESISTIVE CONVERTER.
FR8007097A FR2452716A1 (en) 1979-03-30 1980-03-28 MAGNETIC SENSOR
IT21051/80A IT1130374B (en) 1979-03-30 1980-03-28 MAGNETIC SENSOR DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13728979A JPS5661184A (en) 1979-10-24 1979-10-24 Magneto electro transducer

Publications (2)

Publication Number Publication Date
JPS5661184A true JPS5661184A (en) 1981-05-26
JPS6214956B2 JPS6214956B2 (en) 1987-04-04

Family

ID=15195195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13728979A Granted JPS5661184A (en) 1979-03-30 1979-10-24 Magneto electro transducer

Country Status (1)

Country Link
JP (1) JPS5661184A (en)

Also Published As

Publication number Publication date
JPS6214956B2 (en) 1987-04-04

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