WO2005101043A8 - Assembly and method for determining the direction of magnetic fields - Google Patents

Assembly and method for determining the direction of magnetic fields

Info

Publication number
WO2005101043A8
WO2005101043A8 PCT/EP2005/003105 EP2005003105W WO2005101043A8 WO 2005101043 A8 WO2005101043 A8 WO 2005101043A8 EP 2005003105 W EP2005003105 W EP 2005003105W WO 2005101043 A8 WO2005101043 A8 WO 2005101043A8
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic fields
assembly
voltage dividers
determining
relation
Prior art date
Application number
PCT/EP2005/003105
Other languages
German (de)
French (fr)
Other versions
WO2005101043A1 (en
Inventor
Axel Bartos
Armin Meisenberg
Original Assignee
Hl Planar Technik Gmbh
Axel Bartos
Armin Meisenberg
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 Hl Planar Technik Gmbh, Axel Bartos, Armin Meisenberg filed Critical Hl Planar Technik Gmbh
Publication of WO2005101043A1 publication Critical patent/WO2005101043A1/en
Publication of WO2005101043A8 publication Critical patent/WO2005101043A8/en

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

The invention relates to an assembly and a method for determining the direction of magnetic fields using voltage dividers (1 to 5), consisting of resistors (1.1, 1.2 to 5.1, 5.2) that are configured from magnetoresistive thin layers, at least three (n = 3) voltage dividers (1 to 5) being arranged in such a way that the signal voltages of the different voltage dividers (1 to 5), which occur in the central contacts (1.5 to 5.5) during the rotation of the magnetic fields (H), have phases that are offset in relation to one another. The inventive assembly also comprises differential amplifiers (V1 to V5) for amplifying the differences between the signal voltages in the central contacts (1.5 to 5.5) of two voltage dividers (1 to 5) with neighbouring phases and an evaluation unit for determining the angle of the magnetic fields (H) in relation to a reference direction (X). The advantages of said assembly in comparison to known assemblies include a redundancy of measured values, higher signal amplitudes, or a reduced chip surface, the filtering of harmonic waves and an adaptability of period length deviations.
PCT/EP2005/003105 2004-04-16 2005-03-23 Assembly and method for determining the direction of magnetic fields WO2005101043A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410019238 DE102004019238B3 (en) 2004-04-16 2004-04-16 Arrangement for determining direction of magnetic fields has differential amplifiers for amplifying differences of signal voltages at central contacts of each 2 voltage dividers of adjacent phase position, evaluation unit
DE102004019238.3 2004-04-16

Publications (2)

Publication Number Publication Date
WO2005101043A1 WO2005101043A1 (en) 2005-10-27
WO2005101043A8 true WO2005101043A8 (en) 2007-03-15

Family

ID=34801985

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/003105 WO2005101043A1 (en) 2004-04-16 2005-03-23 Assembly and method for determining the direction of magnetic fields

Country Status (2)

Country Link
DE (1) DE102004019238B3 (en)
WO (1) WO2005101043A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106570209A (en) * 2016-10-10 2017-04-19 广州市格宁电气有限公司 AC resistance voltage divider correction method for error model established based on equivalence principle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2538342B (en) 2015-02-20 2019-10-16 Sensitec Gmbh Detecting sensor error
GB2538343B (en) 2015-02-20 2019-10-23 Analog Devices Global Unlimited Co Detecting sensor error
US10605626B2 (en) 2017-06-12 2020-03-31 Infineon Technologies Ag Angle sensor bridges including star-connected magnetoresistive elements

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317512C2 (en) * 1993-05-26 1995-03-30 Univ Schiller Jena Device for non-contact zero point, position and rotation angle measurement
DE19510579C2 (en) * 1995-03-23 1997-08-21 Inst Physikalische Hochtech Ev Angle of rotation or speed sensor
DE19619806A1 (en) * 1996-05-15 1997-11-20 Siemens Ag Magnetic field sensitive sensor device with several GMR sensor elements
DE19839450B4 (en) * 1998-08-29 2004-03-11 Institut für Mikrostrukturtechnologie und Optoelektronik (IMO) e.V. Magnetoresistive sensor chip with at least two measuring elements designed as a half or full bridge
DE19839446A1 (en) * 1998-08-29 2000-03-02 Bosch Gmbh Robert Arrangement for detecting the angle of rotation of a rotatable element
DE19852502A1 (en) * 1998-11-13 2000-05-18 Philips Corp Intellectual Pty Method for the offset calibration of a magnetoresistive angle sensor
US6326780B1 (en) * 1998-12-01 2001-12-04 Visteon Global Technologies, Inc. Magnetic field concentrator array for rotary position sensors
DE19948026B4 (en) * 1999-10-06 2009-06-10 Robert Bosch Gmbh Circuit and method for detecting a magnetic field
US6633462B2 (en) * 2000-07-13 2003-10-14 Koninklijke Philips Electronics N.V. Magnetoresistive angle sensor having several sensing elements
US6949927B2 (en) * 2001-08-27 2005-09-27 International Rectifier Corporation Magnetoresistive magnetic field sensors and motor control devices using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106570209A (en) * 2016-10-10 2017-04-19 广州市格宁电气有限公司 AC resistance voltage divider correction method for error model established based on equivalence principle
CN106570209B (en) * 2016-10-10 2021-06-04 广州市格宁电气有限公司 Alternating current resistor voltage divider correction method for establishing error model based on equivalence principle

Also Published As

Publication number Publication date
DE102004019238B3 (en) 2005-08-18
WO2005101043A1 (en) 2005-10-27

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