PIEZOELECTRIC ACTUATOR Russian patent published in 2024 - IPC H10N30/20 H02N2/02 

FIELD: electricity.

SUBSTANCE: invention relates to devices based on piezoelectric materials, namely to piezoelectric actuators of complex controlled forms of deformation, and is intended for use in micromechanics, controlled optics, sensor and medical equipment, acoustics, in particular, in production of piezoelectric acoustic elements of membrane type. For this purpose, the piezoelectric actuator includes a piezoelectric layer, a current-conducting line in the form of curvilinear electrodes located on one or both sides of the piezoelectric layer. Novelty is that the current-conducting line is made in the form of two or more tree-like equipotential systems of curvilinear electrodes located on one or both sides of the piezoelectric layer, wherein each equipotential tree-like system of electrodes includes control base electrodes and curved equipotential electrodes extending from them in the form of branches, interacting with branches of nearby electrodes of other systems.

EFFECT: providing the possibility of creating complex controlled forms of deformation.

9 cl, 7 dwg