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WO2008156099A1 - Magnetic detecting device using magnetoresistance effect element - Google Patents

Magnetic detecting device using magnetoresistance effect element Download PDF

Info

Publication number
WO2008156099A1
WO2008156099A1 PCT/JP2008/061098 JP2008061098W WO2008156099A1 WO 2008156099 A1 WO2008156099 A1 WO 2008156099A1 JP 2008061098 W JP2008061098 W JP 2008061098W WO 2008156099 A1 WO2008156099 A1 WO 2008156099A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetoresistance effect
output
effect element
magnet
detected
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.)
Ceased
Application number
PCT/JP2008/061098
Other languages
French (fr)
Japanese (ja)
Inventor
Tsutomu Takeya
Yoshito Sasaki
Hideto Ando
Kiyoshi Sato
Katsuya Kikuiri
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.)
Alps Alpine Co Ltd
Original Assignee
Alps 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of WO2008156099A1 publication Critical patent/WO2008156099A1/en
Anticipated expiration legal-status Critical
Ceased 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)
  • Measuring Magnetic Variables (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Provided is a magnetic detecting device, which is enabled to position highly precisely by detecting the horizontal intensity of a magnetic line of force emanating from the surface of a magnet and by changing a switch in accordance with the detected output. From a first output terminal (OUT1), a switch output is obtained on the basis of a voltage change of an intermediate point between a first magnetoresistance effect element and a voltage dividing resistor. From a second output terminal (OUT2), an output is obtained on the basis of a voltage change of an intermediate point between a second magnetoresistance effect element and a voltage dividing resistor. The horizontal component of the magnetic flux density of the magnetic field to emanate from the surface of the magnet is detected by the two magnetoresistance effect elements, and the switch output is obtained when the confronting position of the detector and the magnet comes to a zero point, so that the zero point can be highly precisely detected.
PCT/JP2008/061098 2007-06-19 2008-06-18 Magnetic detecting device using magnetoresistance effect element Ceased WO2008156099A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007161157 2007-06-19
JP2007-161157 2007-06-19
JP2008152830 2008-06-11
JP2008-152830 2008-06-11

Publications (1)

Publication Number Publication Date
WO2008156099A1 true WO2008156099A1 (en) 2008-12-24

Family

ID=40156258

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061098 Ceased WO2008156099A1 (en) 2007-06-19 2008-06-18 Magnetic detecting device using magnetoresistance effect element

Country Status (1)

Country Link
WO (1) WO2008156099A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014083460A1 (en) * 2012-11-29 2014-06-05 International Business Machines Corporation Position sensor
JP2014107189A (en) * 2012-11-29 2014-06-09 Alps Electric Co Ltd Shift lever device using magnetic detection switch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6323527A (en) * 1986-07-11 1988-01-30 Toyota Autom Loom Works Ltd Rotation detector in compressor
JPH03282277A (en) * 1990-02-21 1991-12-12 Hamamatsu Koden Kk Magnetic detection element
JPH0738174A (en) * 1993-07-23 1995-02-07 Hamamatsu Koden Kk Hybrid ic provided with built-in magnetic detecting element
JP2007220367A (en) * 2006-02-14 2007-08-30 Alps Electric Co Ltd Magnetic switch
WO2008059914A1 (en) * 2006-11-17 2008-05-22 Alps Electric Co., Ltd. Magnetic detector and electronic apparatus employing it

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6323527A (en) * 1986-07-11 1988-01-30 Toyota Autom Loom Works Ltd Rotation detector in compressor
JPH03282277A (en) * 1990-02-21 1991-12-12 Hamamatsu Koden Kk Magnetic detection element
JPH0738174A (en) * 1993-07-23 1995-02-07 Hamamatsu Koden Kk Hybrid ic provided with built-in magnetic detecting element
JP2007220367A (en) * 2006-02-14 2007-08-30 Alps Electric Co Ltd Magnetic switch
WO2008059914A1 (en) * 2006-11-17 2008-05-22 Alps Electric Co., Ltd. Magnetic detector and electronic apparatus employing it

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014083460A1 (en) * 2012-11-29 2014-06-05 International Business Machines Corporation Position sensor
JP2014107189A (en) * 2012-11-29 2014-06-09 Alps Electric Co Ltd Shift lever device using magnetic detection switch
US9719804B2 (en) 2012-11-29 2017-08-01 International Business Machines Corporation Position sensor

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