| 摘要 |
The invention relates to a piezoelectric drive comprising clamping piezo packets which are adjacently arranged, under compressive pre-strain, between a reference part (1) and an output part (2), said packets being pressurised in groups. The reference part is connected to the clamping piezo packets by means of a "semi-rigid" bridging plate (5), semi-rigid meaning that the bridging plate adapts in a flexible manner, to differences in stack height of the piezo packets, at least in terms of the range of length tolerance and of the course of extension of the clamping piezo stack in the static state, and remains essentially rigid, however, in the dynamic state, at the operating frequency. |
