Patent ID: 6293150
Filing Date: 2001-09-25
Classification: A61B,G01P

Abstract:
A motion sensor for monitoring the activity of a body in motion, comprising:a mount;a pair of force detecting sensors capable of detecting both the magnitude and direction of an applied force, each of said sensors comprising:a beam having a first end, a second end, a top and a bottom, said beam rigidly attached to said mount generally near said first end; andsaid second end of said beam having a mass generally greater than said first end of said beam thereby providing a cantilever effect to said beam whereby when said sensor is put into general motion either said top or said bottom of said beam is stretched and produce both a voltage source effect and a capacitance effect, both of said effects corresponding to a translational motion component and a rotational motion component of said general motion; anda means for connecting said effects of said beams whereby said rotational component or said translational component is canceled.