| 摘要 |
A piezoelectric actuator for example for a mechanical component control, comprises a plurality of piezoelectric layers of at least one piezoelectrically active region and internal electrodes which are inserted between said layers and are alternately supplied with a different polarity electric voltage. The piezoelectric actuator including the head and/or base area thereof is actively mounted, and the internal electrodes are entirely buried into the head and/or base area except a minimum contact area for respective external contacts.
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