Ferroelastic domain switching based large actuating strain piezoelectric actuator

摘要: The invention discloses a ferroelastic domain switching based large actuating strain piezoelectric actuator. actuator comprises long-strip type plate, restraining sheets and driving power supply, wherein the are bonded on two larger opposite surfaces of plate in length direction, sheet consistent size surface width stretching prestressing force is applied to by polarized along direction provided with electrodes, electrodes connected supply lead wires. has simple structure, production process simple, oversized can be realized, displacement realized without multi-layer structure.