Study on Optical Servo System (Estimation of Dynamic Characteristics of Bimorph-Type Optical Actuator using PLZT Elements).
Study on Optical Servo System (Estimation of Dynamic Characteristics of Bimorph-Type Optical Actuator using PLZT Elements).
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DOI：
10.1299/kikaic.59.2470
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
T. Nakada;D. Cao;Y. Morikawa;M. Kimura;Chi-Yu Hsien
中科院分区：
文献类型：
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作者：
T. Nakada;D. Cao;Y. Morikawa;M. Kimura;Chi-Yu Hsien
对由两片PLZT元件组成的双压电晶片型光致动器中位移与光强的阶跃响应进行了理论分析，并根据不同尺寸PLZT元件的基础实验推导了阶跃响应理论方程中主要参数的实验方程。将分析结果与试制的光学执行器阶跃响应的实验结果进行比较，结果显示出线性和一阶滞后因子特性，并且在位移的最终值方面彼此吻合良好。分析中的时间常数显示为实验中的0.44倍。详细讨论了造成这种差异的原因。如果考虑到这个原因，双压电晶片型光学执行器的动态特性可以通过本文所示的分析结果来准确估计。
A step response relating displacement to light intensity in a bimorph-type optical actuator consisting of two sheets of PLZT elements is analyzed theoretically, and the experimental equations on the principal parameters included in the theoretical equation of the step response are derived from the fundamental experiment on the PLZT elements with various sizes. Comparing the analytical result with the experimental result of the step response of an optical actuator manufactured as a trial, the results show linear and first-order lag factor characteristics and agree well with each other with regard to the final value of the displacement. The time constant in the analysis shows a value 0.44 times as great as that in the experiment. The cause for this difference is discussed in detail. If this cause is taken into consideration, the dynamic characteristics of a bimorph-type optical actuator may be estimated exactly by the analytical result shown in this paper.