压电陶瓷驱动系统及控制方法研究  

Research on driving system and controlling means of PZT

作　　者：范伟[1] 余晓芬[1] 奚琳[1] 

机构地区：[1]合肥工业大学仪器科学与光电工程学院,安徽合肥230009

出　　处：《光学精密工程》2007年第3期368-371,共4页Optics and Precision Engineering

基　　金：国家自然科学基金国际重大合作项目(No.50420120134);安徽省高等学校省级重点实验室资助项目

摘　　要：给出了一种压电陶瓷驱动系统的控制方法,利用VB中的Timer控件和压电陶瓷电源的DLL动态连接库函数,实现了控制电压的实时可编程输出。针对压电陶瓷驱动器的非线性和迟滞特性,应用MATLAB分别拟合出压电陶瓷驱动器在往返行程中电压与位移值的多项式拟合曲线,得到了电压与位移的关系式,为进一步修正和减少非线性及迟滞误差的影响、提高系统的定位精度,提供了分析的依据。A controlling means of PZT driving system was introduced in detail. By application of DLL library for PZT power supply and Timer control of VB, the real-tlme programmable output of control voltage was realized. According to the nonlinearity and hysteresis of PZT, the polynomial curves of the round-trip voltage and displacement of PZT were charted, and the relational expression of voltage with displacement was obtained by MATLAB. The research supplies further scientific ways to amend and reduce the effect of nonlinearity and hysteresis error, and can improve the positioning accuracy of the system.

关 键 词：压电陶瓷驱动器 控制方法 迟滞 非线性 

分 类 号：TN384[电子电信—物理电子学]