Impact sensing device

Details Impact sensing device Impact sensing device

G - Physics

01

L

G01L 5/00 (2006.01) B60R 21/01 (2006.01) G01L 1/16 (2006.01) G01P 15/09 (2006.01) G01P 15/18 (2006.01)

Patent

CA 2059444

ABSTRACT OF THE DISCLOSURE An impact sensing device including an inertia member, an housing for accommodating the inertia member therein and at least three impact sensors disposed in such a manner as to be in contact with an outer peripheral surface of the inertia member, each impact sensor comprising a piezoelectric element for generating a voltage having ampli- tude corresponding to an applied stress and an urging member for urging the piezoelectric sensor against the inertia member. Upon application of an impact force to the impact sensor, the inertia member presses the piezoelectric ele- ment with a stress corresponding to the impact force to thereby allow the piezoelectric element to generate a volt- age corresponding to the applied stress.

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