Piezoelectric actuator with integrated displacement enhancement, has second region in which elastic curvature change occurs as result of energy transmitted by bridges from length changing region

摘要

The piezoelectric actuator consists of a one-piece molded body with regions connected by bridges separated by openings so the regions can be deformed and moved relative to each other. At least one section of the first region contains an active material that is elastically length variable owing to a change in applied activation energy. At least one section of the second region undergoes am elastic curvature change as a result of energy transmitted by the bridges. An independent claim is also included for the following: an actuator combination.