PIEZOELECTRIC SENSOR FOR IMPACT LOAD Russian patent published in 2019 - IPC G01L1/18 

FIELD: measurement.

SUBSTANCE: invention relates to the field of measurement technology operating in conditions of intense vibrations. Piezoelectric sensor contains a robust housing, where a piezoelectric element is located with a movable plate at the top and a supporting spring at the bottom. Housing is a thick-walled hollow cylinder. Piezoelectric element is made in the form of a round rod, the dimensions of which are made for fit in the housing with a guaranteed clearance. Movable plate from the exit to the outside of the opening of the housing keeps the machined shoulder. Movable plate opposite the end surface rests on the piezoelectric element, which presses the supporting spring from below, and the opposite part of the spring is held by a fixed plate that has a threaded connection with the inner surface of the housing.

EFFECT: technical result: increased operational durability.

1 cl, 2 dwg