Piezoelektrischer Aktor

摘要

A piezoelectric device (30) comprises a stack (31) of one or more piezoelectric elements (42) and means for applying a voltage across the one or more piezoelectric elements (42), wherein the means includes a pair of opposing electrodes (44a, 44b) and positive and negative conductor members (36a, 36b) being received by respective first and second channels (32, 34) disposed internal to the stack (31) so as to make contact with the opposing electrode pair (44a, 44b).