The University of Virginia is investigating the use of a magnetohydrodynamic (MHD) angular rate sensor to measure head angular acceleration in impact testing. Output from the sensor, which measures angular velocity, must be differentiated to produce angular acceleration. As a precursor to their use in actual testing, a torsional pendulum was developed to analyze an MHD sensor's effectiveness in operating under impact conditions. Differentiated and digitally filtered sensor data provided a good match with the vibratory response of the pendulum for various magnitudes of angular acceleration. Subsequent head drop tests verified that MHD sensors are suitable for measuring head angular acceleration in impact testing.


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    Titel :

    Measurement Techniques for Angular Velocity and Acceleration in an impact Environment


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Fileta, B. B. (Autor:in) / Chou, C. C. (Autor:in) / Crandall, J. R. (Autor:in) / Martin, P. G. (Autor:in) / Pilkey, W. D. (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1997



    Erscheinungsdatum :

    1997-02-24




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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