华侨大学学报（自然科学版）2026，Vol.47Issue(5)：518-523,6.DOI:10.11830/ISSN.1000-5013.202507019
压电驱动器迟滞非线性误差的多项式拟合修正方法
Polynomial Fitting Correction Method for Hysteresis Nonlinearity Errors in Piezoelectric Actuators
摘要
Abstract
To address the issue of reduced positioning accuracy caused by hysteresis nonlinearity in piezoelec-tric actuators,a hysteresis correction method based on polynomial fitting is proposed.By experimentally obtai-ning characteristic hysteresis curve data,a drive voltage-displacement mapping relationship is established,a correction function is then constructed using least squares fitting,and feedforward compensation is implemen-ted through operational amplifier circuits and microcontrollers,without requiring complex programming.The experimental results demonstrate that the proposed method reduces the maximum hysteresis error from 12.25%to 0.88%,with repeatability error maintained below 1.66%.Moreover,the approach effectively en-hances the system response speed and control accuracy,providing a feasible solution for high-precision real-time control of piezoelectric actuators.关键词
压电驱动器/迟滞非线性规律/多项式拟合/控制算法/迟滞误差Key words
piezoelectric actuator/hysteresis nonliner law/polynomial fitting/control algorithm/hysteresis error分类
信息技术与安全科学引用本文复制引用
金花雪,陈小雅,许童童,张善勤,薛祎鹏,华鑫杰..压电驱动器迟滞非线性误差的多项式拟合修正方法[J].华侨大学学报（自然科学版）,2026,47(5):518-523,6.基金项目
国家自然科学基金资助项目(52275530) （52275530）
华侨大学教育教学改革研究项目(HQJGTML2505、HQJGTML2507、HQJGTML2508) （HQJGTML2505、HQJGTML2507、HQJGTML2508）
