In order to control the output performance of piezoelectric linear motor by changing the elliptical trajectory of the driving foot, a piezoelectric linear motor based on combined amplification structure was proposed and designed in this paper.The driving foot consisted of a lever and tri angle structure, the elliptical trajectory was formed at the top of the triangle structure when the motor operated,and the lever structure was used to adjust the formed trajectory.Key parameters of the motor were selected according to software emulation in structure design.A prototype was fabricated and tested,and in a wide low frequency range it ran steadly with low driving voltage.The effect of the elliptical trajectory on the motor output performance was studied by changing the amplification factor of the lever structure.It showed that under constant driving signal,the adjustment of the elliptical trajectory at the top of the driving foot was able to realized by changing the amplification factor,thus the output performance of the motor was changed.
参考文献
相似文献
引证文献
引用本文
徐晶晶,陈西府,王寅,黄卫清.基于复合放大机构的压电直线电机[J].压电与声光,2013,35(2):234-236. XU Jingjing, CHEN Xifu, WANG Yin, HUANG Weiqing. A Piezoeletric Linear Motor Based on Combined Amplification Structure[J]. PIEZOELECTRICS AND ACOUSTOOPTICS