Optical Design and Engineering

Design and experimental investigations of a two-dimensional laser scanner based on piezoelectric actuators

[+] Author Affiliations
Wei Chen, Dong Luo

Huazhong University of Science and Technology, School of Optical and Electronic Information, Wuhan 430074, China

Chinese Academy of Sciences and The Chinese University of Hong Kong, Shenzhen Institute of Advanced Integration Technology, Shenzhen 518055, China

Sihai Chen

Chinese Academy of Sciences and The Chinese University of Hong Kong, Shenzhen Institute of Advanced Integration Technology, Shenzhen 518055, China

Opt. Eng. 54(2), 025110 (Feb 13, 2015). doi:10.1117/1.OE.54.2.025110
History: Received October 27, 2014; Accepted January 15, 2015
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Abstract.  A compact two-dimensional laser scanner based on piezoelectric actuators is presented. The scanner consists of two single-axis laser scanners placed perpendicular to each other, which exhibit the advantages of small size, large angle, high scanning speed, and high linearity. The mechanical structure and principle of the scanner are introduced and the performance of the scanner is experimentally investigated. The result shows that the maximum angle of the scanner is approximately 9.315 deg with a main resonant frequency of 1242 Hz. An open-loop controller based on a hysteresis compensation algorithm and analog notch filter is proposed. Its nonlinearity is reduced to ±0.5% after compensation. High frequency scanning and the step response of the scanner are also studied to demonstrate the performance and effectiveness of the scanner.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Wei Chen ; Sihai Chen and Dong Luo
"Design and experimental investigations of a two-dimensional laser scanner based on piezoelectric actuators", Opt. Eng. 54(2), 025110 (Feb 13, 2015). ; http://dx.doi.org/10.1117/1.OE.54.2.025110


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