Patent ID: 6031317
Filing Date: 2000-02-29
Classification: G01P

Abstract:
A shock sensor sensitive to linear shocks along two orthogonal axes and to rotational shocks in a plane in which the shock sensor lies comprising:a first piezoelectric sensor polarized in a first direction angularly offset from the plane in which the shock sensor lies, the first piezoelectric sensor producing a first response to shocks having components along a first and a second orthogonal axis which define a plane perpendicular to the plane in which the shock sensor lies;a second piezoelectric sensor polarized in a second direction angularly offset from the plane in which the shock sensor lies, the second direction angularly offset 180.degree. from the first direction, the second piezoelectric sensor producing a second response to shocks having components along the first and second orthogonal axis; and,an integrated circuit responsive to said first response and said second response and operative to produce;a first signal indicating a linear shock to the first piezoelectric sensor;a second signal indicating a linear shock to the second piezoelectric sensor; and,a third signal indicating a rotational shock to the shock sensor generated by combining an output of the first piezoelectric sensor and an output of the second piezoelectric sensor.