发明授权
US4928030A Piezoelectric actuator 失效
压电执行器

Piezoelectric actuator
摘要:
A piezoelectric device or actuator (30) includes dimorph stack (32) attached to a support (34). Affixed to the apex of stack (32) is friction surface (36) which is held in contact with the external friction surface of a positionable object (38).
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