| 1. | This can be reduced by borrowing close loop feedback which cost great and make the system more complex . with charge driver the pizeo acuter works under ideal linear . but charge driver is lack of low frequency stability 而采用电压驱动方法控制压电陶瓷,开环时存在迟滞、蠕变和位移非线性;采用电荷驱动方法,开环控制线性良好,但低频稳定性差。 |