| 摘要 |
PURPOSE:To obtain a low voltage drive cylindrical piezoelectric ceramics and piezoelectric motor, which can be assembled easily, by connecting each unit of a plurality of split electrodes at a first inner electrode section to a common external electrode, and connecting every other layer of continuous electrodes at a second inner electrode section to a second common external electrode. CONSTITUTION:Every unit of first inner electrodes 2-2 is connected to a first common external electrode, and two of the first external electrodes are grouped at the splitting position of the first inner electrode 2-2 thus providing three terminals. Second inner electrode 2-3 is connected to a second common external electrode for every other inner electrode layer 1-2, and voltages are applied on the first and second external electrodes while shifting sequentially. By such arrangement, low voltage drive cylindrical piezoelectric ceramics and piezoelectric motor, which can be assembled easily, can be obtained. |
