PIEZOELECTRIC SENSOR OF IMPACT ACCELERATION Russian patent published in 2013 - IPC G01P15/09 

FIELD: measurement equipment.

SUBSTANCE: piezoelectric sensor of impact acceleration includes a housing, in the inner cavity of which there fixed is a support having projections in middle part, which are located at equal distance from the housing sides, on each of which a piezoelement and inertia mass are fixed by means of an intermediate adhesive coat and inertia mass. Adhesive layer includes bonding material, rubber and calibrated conducting particles, and geometrical centre of support coincides with geometrical centre of the housing. Into the adhesive layer there added is graphite, the content of which does not exceed 10%, and calibrated particles have the size of 20-80 mcm; at that, rubber content in adhesive layer is at least 60%.

EFFECT: increasing conversion coefficient and damping properties of a sensor.

3 dwg