JPS5773618A - Linear displacement detecting method - Google Patents

Linear displacement detecting method

Info

Publication number
JPS5773618A
JPS5773618A JP14959880A JP14959880A JPS5773618A JP S5773618 A JPS5773618 A JP S5773618A JP 14959880 A JP14959880 A JP 14959880A JP 14959880 A JP14959880 A JP 14959880A JP S5773618 A JPS5773618 A JP S5773618A
Authority
JP
Japan
Prior art keywords
magnetic field
linear displacement
permanent
detecting method
varies
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
JP14959880A
Other languages
Japanese (ja)
Inventor
Yoshimitsu Ishitobi
Fumio Nakatsuji
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co Ltd
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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP14959880A priority Critical patent/JPS5773618A/en
Publication of JPS5773618A publication Critical patent/JPS5773618A/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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To lessen the influence of an external magnetic field and to reduce the thickness of a sensor by detecting linear displacement between a couple of permanent magnets, facing mutually differing in the direction of magnetic poles, by a magnetic resistance element as variations in composite magnetic field. CONSTITUTION:The 1st permanent magnett 8 is fixed to an MR element 7 to apply a magnetic field in parallel to the magnetism-sensitive surface of the MR element 7, and the 2nd permanent magnet 9 is made to fact the 1st permanent magnet 8 differing in the direction of magnetic poles. As the interval between the magnets 8 and 9 is varied, the direction of a composite magnetic field applied to the MR element 7 varies, so the output voltage of the MR element 7 varies.
JP14959880A 1980-10-24 1980-10-24 Linear displacement detecting method Pending JPS5773618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14959880A JPS5773618A (en) 1980-10-24 1980-10-24 Linear displacement detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14959880A JPS5773618A (en) 1980-10-24 1980-10-24 Linear displacement detecting method

Publications (1)

Publication Number Publication Date
JPS5773618A true JPS5773618A (en) 1982-05-08

Family

ID=15478698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14959880A Pending JPS5773618A (en) 1980-10-24 1980-10-24 Linear displacement detecting method

Country Status (1)

Country Link
JP (1) JPS5773618A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6435201A (en) * 1987-07-30 1989-02-06 Akai Electric Displacement detecting apparatus
JPS6425706U (en) * 1987-08-04 1989-02-13
US5477143A (en) * 1994-01-11 1995-12-19 Honeywell Inc. Sensor with magnetoresistors disposed on a plane which is parallel to and displaced from the magnetic axis of a permanent magnet
JP2017161365A (en) * 2016-03-09 2017-09-14 Tdk株式会社 Magnet and displacement detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6435201A (en) * 1987-07-30 1989-02-06 Akai Electric Displacement detecting apparatus
JPS6425706U (en) * 1987-08-04 1989-02-13
US5477143A (en) * 1994-01-11 1995-12-19 Honeywell Inc. Sensor with magnetoresistors disposed on a plane which is parallel to and displaced from the magnetic axis of a permanent magnet
JP2017161365A (en) * 2016-03-09 2017-09-14 Tdk株式会社 Magnet and displacement detector

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