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Volume 11
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10.3390/mi11020216
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Article

Electrochemical Coupled Analysis of a Micro Piezo-Driven Focusing Mechanism

by
Chong Li
1,2,3,*,
Kang Liang
1,
Wei Zhong
1,
Jiwen Fang
1,
Lining Sun
2 and
Yong Zhu
4,*
1
School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
2
Robotics and Microsystems Center, Scoochow University, Suzhou 215021, China
3
Suzhou Mingzhi Technology Co., Ltd., Suzhou 215217, China
4
National Research Center of Pumps, Jiangsu University, Zhenjiang 212003, China
*
Authors to whom correspondence should be addressed.
Micromachines 2020, 11(2), 216; https://doi.org/10.3390/mi11020216
Submission received: 17 January 2020 / Revised: 18 February 2020 / Accepted: 19 February 2020 / Published: 20 February 2020
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Abstract

In order to improve the response speed and output force of the camera focusing mechanism, the authors proposed a novelty micro focusing mechanism based on piezoelectric driving, which has the characteristics of rapid response, high precision positioning and large displacement focusing. In this paper, the operating principle of the proposed focusing mechanism is presented. Using the piezoelectric output characteristic, the movable tooth drive theory and the screw drive theory, the electromechanical coupling mechanical model and equations of the piezoelectric focusing mechanism are established. Through MATLAB simulation, the output characteristics of the piezoelectric focusing mechanism are calculated. The results indicate that the maximum thrust force of the lens and the maximum output torque of the movable tooth drive for the piezoelectric focusing mechanism are 562.5 N and 1.16 Nm, respectively. Furthermore, the driving voltage directly affects the output performance of the piezoelectric focusing mechanism. These results can be utilized both to optimize the dimensions and improve the overall performance of the piezo-driven focusing mechanism.
Keywords: numerical analysis; electrochemical coupled; piezo-driven; focusing mechanism numerical analysis; electrochemical coupled; piezo-driven; focusing mechanism

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MDPI and ACS Style

Li, C.; Liang, K.; Zhong, W.; Fang, J.; Sun, L.; Zhu, Y. Electrochemical Coupled Analysis of a Micro Piezo-Driven Focusing Mechanism. Micromachines 2020, 11, 216. https://doi.org/10.3390/mi11020216

AMA Style

Li C, Liang K, Zhong W, Fang J, Sun L, Zhu Y. Electrochemical Coupled Analysis of a Micro Piezo-Driven Focusing Mechanism. Micromachines. 2020; 11(2):216. https://doi.org/10.3390/mi11020216

Chicago/Turabian Style

Li, Chong, Kang Liang, Wei Zhong, Jiwen Fang, Lining Sun, and Yong Zhu. 2020. "Electrochemical Coupled Analysis of a Micro Piezo-Driven Focusing Mechanism" Micromachines 11, no. 2: 216. https://doi.org/10.3390/mi11020216

APA Style

Li, C., Liang, K., Zhong, W., Fang, J., Sun, L., & Zhu, Y. (2020). Electrochemical Coupled Analysis of a Micro Piezo-Driven Focusing Mechanism. Micromachines, 11(2), 216. https://doi.org/10.3390/mi11020216

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