WO2010052664A3 - Modulation of input signals for a sensor apparatus - Google Patents

Modulation of input signals for a sensor apparatus Download PDF

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Publication number
WO2010052664A3
WO2010052664A3 PCT/IB2009/054920 IB2009054920W WO2010052664A3 WO 2010052664 A3 WO2010052664 A3 WO 2010052664A3 IB 2009054920 W IB2009054920 W IB 2009054920W WO 2010052664 A3 WO2010052664 A3 WO 2010052664A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
sensor apparatus
input signal
sensor
modulation
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/IB2009/054920
Other languages
French (fr)
Other versions
WO2010052664A2 (en
Inventor
Marcus Prochaska
Boris Klabunde
Stefan Butzmann
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.)
NXP BV
Original Assignee
NXP BV
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 NXP BV filed Critical NXP BV
Priority to CN2009801443199A priority Critical patent/CN102216796A/en
Priority to EP09759808A priority patent/EP2353020A2/en
Publication of WO2010052664A2 publication Critical patent/WO2010052664A2/en
Anticipated expiration legal-status Critical
Publication of WO2010052664A3 publication Critical patent/WO2010052664A3/en
Ceased legal-status Critical Current

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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
    • G01R33/063—Magneto-impedance sensors; Nanocristallin sensors

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

The present invention proposes a sensor apparatus (200) for generating a measurement signal (Ua) based on an input signal (Hm). The input signal is preferably a magnetic field. The sensor apparatus includes a signal generation device (220) and a sensor device (230). The signal generation device (220) generates a periodic signal (He) of the same type as the input signal (Hm). The signal generation device further generates a mixed signal based on the input signal (Hm) and the periodic signal (He). The sensor device (230) finally generates the measurement signal (Ua) based on the mixed signal and a characteristic curve (110) of the sensor device (230). By mixing the input signal (Hm) with a periodic signal (He) of the same type, the sensitivity and robustness of the sensor apparatus (200) can be increased by synchronously reducing its complexity.
PCT/IB2009/054920 2008-11-06 2009-11-05 Modulation of input signals for a sensor apparatus Ceased WO2010052664A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2009801443199A CN102216796A (en) 2008-11-06 2009-11-05 Modulation of input signals for a sensor apparatus
EP09759808A EP2353020A2 (en) 2008-11-06 2009-11-05 Modulation of input signals for a sensor apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08105742.4 2008-11-06
EP08105742 2008-11-06

Publications (2)

Publication Number Publication Date
WO2010052664A2 WO2010052664A2 (en) 2010-05-14
WO2010052664A3 true WO2010052664A3 (en) 2011-06-16

Family

ID=42153351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/054920 Ceased WO2010052664A2 (en) 2008-11-06 2009-11-05 Modulation of input signals for a sensor apparatus

Country Status (3)

Country Link
EP (1) EP2353020A2 (en)
CN (1) CN102216796A (en)
WO (1) WO2010052664A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2413154B1 (en) 2010-07-30 2013-04-17 Nxp B.V. Magnetoresistive Sensor
CN105629184B (en) * 2014-11-20 2018-08-14 苹果公司 Electronic equipment and mixing magnetometer sensor external member for electronic equipment
JP7061882B2 (en) * 2018-01-19 2022-05-02 株式会社アドバンテスト Measuring equipment, methods, programs, recording media

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703378A (en) * 1984-03-01 1987-10-27 Sony Corporation Magnetic transducer head utilizing magnetoresistance effect

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743508A2 (en) * 1995-05-16 1996-11-20 Mitutoyo Corporation Induced current position transducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703378A (en) * 1984-03-01 1987-10-27 Sony Corporation Magnetic transducer head utilizing magnetoresistance effect

Also Published As

Publication number Publication date
EP2353020A2 (en) 2011-08-10
WO2010052664A2 (en) 2010-05-14
CN102216796A (en) 2011-10-12

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