• DocumentCode
    2703070
  • Title

    Precise AMR magnetometer for compass

  • Author

    Platif, A. ; Kubik, J. ; Vopalensky, M. ; Ripka, P.

  • Author_Institution
    Fac. of Electr. Eng., Czech Tech. Univ., Prague, Czech Republic
  • Volume
    1
  • fYear
    2003
  • fDate
    22-24 Oct. 2003
  • Firstpage
    472
  • Abstract
    AMR sensors gain growing popularity in linear applications such as compassing (Tumaski and Ripka). We discuss techniques, how to achieve precision required for 0.2 deg azimuth error in wide temperature range. While linearity of 80 ppm FS and sensitivity tempco of 20 ppm/K can be achieved by using feedback compensation, offset drift and crossfield error can be lowered to nT level by periodical flipping.
  • Keywords
    compasses; feedback; magnetic anisotropy; magnetic sensors; magnetometers; magnetoresistive devices; sensitivity; AMR magnetometer; AMR sensors; compass; feedback compensation; periodical flipping; Circuit stability; Feedback; Linearity; Magnetic field measurement; Magnetic sensors; Magnetometers; Temperature dependence; Temperature distribution; Temperature measurement; Temperature sensors;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Sensors, 2003. Proceedings of IEEE
  • Print_ISBN
    0-7803-8133-5
  • Type

    conf

  • DOI
    10.1109/ICSENS.2003.1278983
  • Filename
    1278983
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2703070