| 摘要 |
A piezoelectric actuator comprising a stack (12) of piezoelectric elements (26) formed from a piezoelectric material and a plurality of positive internal electrodes (30) interdigitated with a plurality of negative internal electrodes (32) throughout the stack (12) to define active regions of the piezoelectric material which are responsive to a voltage applied across the positive and negative internal electrodes (30, 32) in use. A positive side electrode (14) connects with the positive internal electrodes (30) and a negative side electrode (16) connects with the negative internal electrodes (32). The actuator is characterised in that the positive and negative side electrodes (14, 16) are formed from a metal and are attached to the stack (12) by an electrically conductive adhesive (18, 20). |
