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Velocity meters

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  • Velocity meters

    Hello Everyone,

    I was wondering if anyone has experience with velocity-meters that can be used
    over a short distance 5 yards or so and take pretty rapid samples so velocity
    patterns can be examined. The subject will be human and start from a stationary
    position so the frequence probably does not have to be that great, but I need
    something more accurate than an electronic timer and that I could attach
    probably around the waist or something. The problem with electronic timers is
    that you never know what is triggering them (trunk. hand, arm....)

    I looked at using accelerometers but I am afraid of a change in axis when the
    subjects go from a stance to a upright position.

    thanks in advance,

    Jerome Learman