In recent years, micro attitude and heading reference system (AHRS) is widespread applied in aerospace, automotive to determine the attitude of carrier as it is low price, small size, light weight and high reliability. This paper presents novel low cost calibration methods for micro-electro-mechanical (MEMS) inertial/magnetic integrated sensors which are the key unit in the AHRS. In these methods, accelerometer and magnetometer triads are calibrated based on the fact that the norm of accelerometers and magnetometers outputs must equal that of the gravity vector and the geomagnetic field vector, respectively. Used the dot production between the geomagnetic field vector and the gravity vector as a measurement, the inter-triad misalignment is devised. By comparing the compensated measurements of accelerometer and magnetometer triads with the computed gravity vector and geomagnetic field vector in sensor body frame, we proposes a low cost method to calibrate gyroscope triad without extra equipment. Simulations are given to illustrate the proposed method, and the results show that the proposed methods are effective and useful for MEMS inertial/magnetic integrated sensors as they could be calibrated without external equipment.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Novel low cost calibration methods for MEMS inertial/magnetic integrated sensors


    Contributors:
    Ding, Zhijian (author) / Cai, Hong (author) / Yu, Chunmei (author) / Zhang, Wenjie (author)


    Publication date :

    2014-08-01


    Size :

    157393 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Performance of MEMS inertial sensors

    Kourepenis, A. / Borenstein, J. / Connelly, J. et al. | AIAA | 1998


    Performance of MEMS inertial sensors

    Kourepenis, A. / Borenstein, J. / Connelly, J. et al. | Tema Archive | 1998


    Performance of MEMS Inertial Sensors

    Kourepenis, A. / Borenstein, J. / Connelly, J. et al. | British Library Conference Proceedings | 1998


    Packaging MEMS Inertial Sensors at Motorola

    IEEE | British Library Conference Proceedings | 2003