SU Jiang1, LIU Peng2, YANG Zhi-gang2. Design of piezoelectric precise actuator and its closed-loop control system[J]. 2013, 32(5): 95-98. DOI: 10.13873/j.1000-97872013.05.039.
压电式精密驱动器及其闭环控制系统设计
摘要
提出了一种以压电叠堆作为驱动源的新型步进直线精密驱动器
设计了直线驱动器的整体结构
分析了直线驱动器的工作原理。制作了直线驱动器样机并进行试验测试
试验结果表明:步距与电压间具有良好的线性关系
但驱动器存在步距误差。采用PCI—6229NI数据采集卡
使用LabVIEW软件设计了驱动器闭环反馈控制系统
对比试验结果表明:驱动器定位精度显著提高
可达到0.06μm。
Abstract
A novel stepping linear precise actuator is proposed based on piezoelectric stack as actuator element
the overall structure of linear actuator is designed
its working principle is analyzed.The prototype of linear actuator is fabricated
and its test is carried out.The experimental results show that there is a good linear relationship between voltage and step distance
but the actuator has step distance error.Using PCI—6229NI data acquisition card
closed-loop feedback control system of actuator is designed with LabVIEW software.The comparative experimental results show that the positioning precision of the actuator improves significantly