Hysteresis characteristics of piezoelectric ceramic actuators

被引：6

作者：

Fan W. ^{[1
]}

Lin Y.-Y. ^{[1
]}

Li Z.-S. ^{[1
]}

机构：

[1] College of Mechanical Engineering and Automation, Huaqiao University, Xiamen

来源：

Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2016年 / 24卷 / 05期

关键词：

Domain switching; Hysteresis; Hysteresis characteristic curve; Piezoelectric ceramic actuator; Positioning and control;

D O I：

10.3788/OPE.20162405.1112

中图分类号：

学科分类号：

摘要：

As the inherent hysteresis phenomena of a piezoelectric ceramic actuator affects its positioning accuracy badly, this paper analyzes and verifies the characteristics of the hysteresis phenomena. The causes of hysteresis were analyzed through microscopic polarization mechanism and electromechanical coupling effects. Some experiments were designed to compare the hysteresis characteristics under different travels, different positions of the whole travel and different initial voltages. The experimental results indicate that: for the driving travel of 10 V, the output of average displacement increases at first then decreases and the average hysteresis error decreases from 0.4193 μm to 0.1589 μm as the increases of voltage intervals; for the driving travel of 100 V, the output of average displacement decreases from 42.8825 μm to 25.92 μm and the average hysteresis error decreases from 3.9993 μm to 1.6923 μm as the increases of initial voltages. Moreover, when the initial voltage increases by 15 V, the output of displacement decreases by 5.6542 μm on average, and the hysteresis error decreases by 0.769 μm on average. These results reflect the influence of domain switching status in the initial phase on electromechanical coupling efficiency in the driving process and also verify the domain switching theory effectively. The experiments suggest that the compensation for hysteresis errors of the piezoelectric ceramic actuator according to the hysteresis characteristics of domain switching in different steps can correct or reduce the effects by hysteresis errors, and can provide scientific reference for improving the control accuracy of positing systems. © 2016, Science Press. All right reserved.

引用

页码：1112 / 1117

页数：5

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