• DocumentCode
    3833880
  • Title

    Crossfield Sensitivity in AMR Sensors

  • Author

    Pavel Ripka;Michal Janosek;Mattia Butta

  • Author_Institution
    Dept. of Meas., Czech Tech. Univ. in Prague, Prague, Czech Republic
  • Volume
    45
  • Issue
    10
  • fYear
    2009
  • Firstpage
    4514
  • Lastpage
    4517
  • Abstract
    We discuss the origin of the crossfield sensitivity of AMR sensors, the way how this error may influence the performance of an AMR compass and methods for its correction. Finally, we confirm the simple formulas experimentally. Crossfield may cause compass error up to 2.6 deg., depending on the compass orientation. The most effective way to suppress the crossfield error is using magnetic feedback, however this is not always possible. We suggest a method of processing of the SET/RESET sensor outputs which is more efficient than the usual averaging.
  • Keywords
    "Magnetic sensors","Anisotropic magnetoresistance","Azimuth","Magnetic anisotropy","Perpendicular magnetic anisotropy","Error correction","Sensor systems","Electric variables measurement","Feedback","Magnetic materials"
  • Journal_Title
    IEEE Transactions on Magnetics
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2009.2022051
  • Filename
    5257125
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3833880