PIEZOELECTRIC ACTUATOR MANUFACTURING METHOD Russian patent published in 2024 - IPC H10N30/20 H10N39/00 

FIELD: electricity.

SUBSTANCE: invention relates to a method of making a piezoelectric actuator. For production of piezoelectric actuator, plate piezoelectric layer is made, placing a current-conducting line in the form of one or two oppositely lying double spirals of electrodes located respectively on one or both sides of the piezoelectric layer, and in case of two-sided arrangement of current-conducting line, unipolar with positive or negative potential electrodes of upper and lower double spirals are located opposite to each other, at the same time piezoelectric layer is made as composite anisotropic of “polymer/piezoelectric” type with its lower rigidity in circumferential direction in relation to rigidity in radial direction.

EFFECT: higher efficiency of piezoelectric actuator properties.

8 cl, 4 dwg