PIEZOELECTRIC ACTUATOR Russian patent published in 2025 - IPC H02N2/02 H10N30/20 

FIELD: electrical engineering.

SUBSTANCE: invention relates 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. Piezoelectric actuator includes a piezoelectric layer, a current-conducting line in the form of spirals of interacting electrodes located on one or both sides of the piezoelectric layer. Current-conducting line is made in the form of one or two multistart coils of interacting electrodes located on one or both sides of the piezoelectric layer, respectively.

EFFECT: high efficiency of the piezoelectric actuator—wider range of possible controlled deformation forms.

7 cl, 5 dwg