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Experimental investigation on the hysteresis phenomenon and the photostrictive effect of PLZT with coupled multi-physics

机译：多物理场PLZT的磁滞现象和光致伸缩效应的实验研究

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Lead lanthanum zirconate (PLZT) ceramic has been widely studied as an opto-electromechanical actuator activated by ultraviolet light for active vibration control of various structures. However, the slow response time of photodeformation and the hysteresis phenomenon between the photovoltage and photo-induced deformation greatly affect the performance of PLZT as an actuator. The primary purposes of this article are to provide a comprehensive analysis on the hysteresis phenomenon and seek the reason of the hysteresis phenomenon with the experimental method. To this end, this study proposed the hysteresis phenomenon by photostrictive static experiments and investigated the possible influence factors on the hysteresis phenomenon through a series of experiments. The experimental results indicate that the temperature elevation of PLZT ceramic subjected to light illumination plays a significant role in the hysteresis phenomenon. Therefore, reducing the temperature rise of PLZT ceramic exposed to ultraviolet light is an effective means to eliminate the hysteresis phenomenon and improve the respond speed of photo-induced deformation.
机译：锆酸铅镧（PLZT）陶瓷已被广泛研究为由紫外线激活的光电机械致动器，用于各种结构的主动振动控制。但是，光变形的响应时间慢以及光电压与光致变形之间的滞后现象极大地影响了PLZT作为致动器的性能。本文的主要目的是提供对磁滞现象的综合分析，并通过实验方法寻找磁滞现象的原因。为此，本研究通过光致伸缩静态实验提出了磁滞现象，并通过一系列实验研究了可能的影响磁滞现象的因素。实验结果表明，PLZT陶瓷在光照下的温度升高在滞后现象中起着重要作用。因此，减少暴露在紫外线下的PLZT陶瓷的温升是消除磁滞现象并提高光致变形响应速度的有效手段。

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