| 摘要 |
A piezoelectric actuator of multiple piezoelectric layers in an integrally bonded laminate structure. Alternating layers of electrically active ceramic material and conductive or non-conductive substrate material are stacked with layers of conductive or non-conductive thermally activated adhesive therebetween. The stacked layers are heated to flow the adhesive and subsequently cooled to effect an integral bonding of the layers and a doming of the stacked device. Conductive substrate materials and adhesive materials may be used, with every other substrate layer being reverse poled to create alternating positive and negative electrode substrate layers capable of applying an electric field to active ceramic layers therebetween. Alternatively, electrically active layers are provide with thin metal electrode layers on opposing surfaces which are capable of applying an electric field to active ceramic layers therebetween. |
