BENDING TYPE PIEZOACTUATOR Russian patent published in 2017 - IPC H01L41/83 H02N2/02 

FIELD: physics.

SUBSTANCE: bending type piezoactuator is a multilayer stack consisting of elementary layers, each containing piezoelectric layers of the bimorph element and internal electrodes installed between the piezoelectric layers and on either sides of the bimorph element. Herewith the internal electrodes are combined at the stationary end of the stack with the external electrodes. The multilayer stack is composed of mechanically unconnected elementary layers, each elementary layer further comprising, at least, two layers located on each side of the bimorph element and made of a material with a magnetoelectric effect, and internal electrodes interposed between the layers of a material with a magnetoelectric effect. Herewith the internal electrodes are combined with the external electrodes to electrically control the magnetic fields in the layers of a material with a magnetoelectric effect additionally mounted on the fixed end of the multilayer stack.

EFFECT: increasing the amplitude of controlled deformations in static and dynamic modes and the possibility of fixing large static and amplitude resonant bends of the piezoactuator.

4 cl, 7 dwg