A control model for hysteresis based on microscopic polarization mechanisms in piezoelectric actuator  

作　　者：汝长海 孙立宁 荣伟彬 

机构地区：[1]Robot Research Institute, Harbin Institute of Technology

出　　处：《Journal of Harbin Institute of Technology(New Series)》2008年第3期302-306,共5页哈尔滨工业大学学报（英文版）

基　　金：the National Natural Science Foundation of China (Grant No.60604031)

摘　　要：Aiming at the limitation of control accuracy caused by hysteresis and creep for a piezoelectric actuator, the hysteresis phenomenon is explained based on the microscopic polarization mechanism and domain wall theory. Then a control model based on polarization is established, which can reduce the hysteresis and creep remarkablely. The experimental results show that the polarization control method is with more linearity and less hysteresis compared with the voltage control method.Aiming at the limitation of control accuracy caused by hysteresis and creep for a piezoelectric actuator, the hysteresis phenomenon is explained based on the microscopic polarization mechanism and domain wall theory. Then a control model based on polarization is established, which can reduce the hysteresis and creep remarkablely. The experimental results show that the polarization control method is with more linearity and less hysteresis compared with the voltage control method.

关 键 词：piezoelectric actuator HYSTERESIS microscopic polarization charge control 

分 类 号：TP24[自动化与计算机技术—检测技术与自动化装置]