The experimental analysis on the driving characteristics of photo response torsion actuator
The experimental analysis on the driving characteristics of photo response torsion actuator
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光响应扭转执行器驱动特性实验分析
DOI：
10.1177/1045389x20923092
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发表时间：
2020-05
影响因子：
2.7
通讯作者：
Huang Jiahan
中科院分区：
文献类型：
--
作者：
Liu Yafeng;Wang Xinjie;Wang Jiong;Chen Hejuan;Huang Jiahan
掺镧锆钛酸铅陶瓷是一种著名的光致伸缩材料，由于其光致伸缩效应，在无线光控微执行器方面得到了广泛的研究。然而，光电压与光致形变之间的滞后现象严重阻碍了高频动态场的应用。本文的主要目的是提出一种基于掺镧锆钛酸铅陶瓷的光-静电混合驱动的光响应扭转驱动器，以达到快速响应而不考虑迟滞现象的目的。为此，本研究通过一系列实验，观察了驱动电压、掺镧锆钛酸铅陶瓷光伏电压与致动器偏转量的关系，以及不同负载对驱动特性的影响。实验结果表明，掺镧锆钛酸铅陶瓷在紫外光照射下，有负载时的光伏电压低于无负载时的光伏电压。在不同载荷条件下，变形曲线的变化趋势与驱动电压曲线的变化趋势一致。扭转驱动器的变形随光强的增加而增大。因此，采用本发明的光静电混合驱动方法驱动的光响应扭转致动器能够有效地控制变形，响应速度快，同时可以忽略迟滞现象。
The lanthanum-doped lead zirconate titanate ceramic is a well-known photostrictive material and has been studied extensively as wireless photo-controlled microactuators for its characteristic of photostrictive effect. However, the hysteresis phenomenon between photovoltage and photo-induced deformation has seriously hindered the application of the high-frequency dynamic field. The primary purpose of this article is to propose a photo response torsion actuator driven by opto-electrostatic hybrid driving method based on lanthanum-doped lead zirconate titanate ceramic to achieve the goal of rapid response regardless of the hysteresis phenomenon. To this end, this study observed the driving voltage, the relationship between the photovoltaic voltage of lanthanum-doped lead zirconate titanate ceramic and the deflection of the actuator, and the influence of different loads on driving characteristics through a series of experiments. From these experiments, the results indicate that when lanthanum-doped lead zirconate titanate ceramic is irradiated by ultraviolet light, the photovoltaic voltage with load is lower than that without load. The trend of deformation curves is in agreement with the trend of the driving voltage curves under different loads conditions. And the deformation of torsion actuator increases with the increase in light intensity. Therefore, the photo response torsion actuator driven by the opto-electrostatic hybrid driving method can control the deformation with rapid response speed effectively; meanwhile, the hysteresis phenomenon can be ignored.
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