PIEZOELECTRIC STAND Russian patent published in 2021 - IPC G01M7/02 

FIELD: measuring equipment.

SUBSTANCE: invention is used to excite mechanical vibrations, which can be used as vibration stands for measuring the characteristics of accelerometers or for evaluating the effect of vibrations on a particular product. The piezoelectric stand contains a base, a platform and piezoelectric elements. The piezoelectric elements are made flat with a width b, a length l, and a thickness t and glued to a substrate with a width b, a thickness t, and a length (1…1.5)l. N glued piezoelectric elements are located symmetrically relatively to the axis of the platform, while one end of each glued element is rigidly fixed to the base, and the second is fixed with an elastic compound on the platform. The dimensions of the piezoelectric elements, the mass of the base M, and the mass of the platform m satisfy the specified condition.

EFFECT: technical result is providing the possibility of eliminating the need to adjust the platform and base at each frequency and eliminating errors caused by this adjustment.

1 cl, 1 dwg