Piezoelectric actuators have lots of superior performance such as physical unlimited resolution,high stiffness response ......

Use of composite materials in the structural components resulted in reducing the weight to increase their performance.Th......

基于参考文献和Ｉｎｔｅｒｎｅｔ网络查询，提出超声波马达在美国的最新研究与主要方向。研究包括：微型超声波马达，具有新颖结构的压电驱动器，超声波马达......