Precision control of piezo-actuated optical deflector with nonlinearity correction based on hysteresis model

被引：20

作者：

Wang, Geng ^{[1
,2
,3
]}

Guan, Chunlin ^{[1
,3
]}

Zhang, Xiaojun ^{[1
,3
]}

Zhou, Hong ^{[1
,3
]}

Rao, Changhui ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China

[2] Henan Polytech Univ, Jiaozuo 454003, Peoples R China

[3] Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, Chengdu 610209, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2014年 / 57卷

关键词：

Precision control; Optical deflector; Hysteresis model;

D O I：

10.1016/j.optlastec.2013.08.025

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The hysteresis nonlinearity of piezoelectric actuator is one of the main defects in the control of optical deflector which is widely used as a key component in adaptive optics system. In this paper, a control method combining the feedforward and feedback controllers is proposed to precisely control the deflection angle of an optical deflector. The inverse of an asymmetric Prandtl-Ishlinskii (PI) hysteresis model is utilized in the feedforward loop, and a PID controller is used in the feedback loop. Then, a tracking control experiment for the desired triangle wave was performed. From the experimental results, we can see that the response of the optical deflector is linearized and the positioning precision of optical deflector is significantly improved. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：26 / 31

页数：6

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