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《Optics and Precision Engineering》 2005-03
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Piezoelectric-type stepping precision rotary actuator

ZHAO Hong-wei,LIU Jian-fang,HUA Shun-ming, LIU Guo-song,CHENG Guang-ming, WU Bo-da(College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China)  
A new research scheme applying PZT stack into precision rotary actuator is proposed. Based on the analysis of the main mechanical structure and rotary working principle of the actuator, a mathematical model using PZT stack as actuator element is set up, and the mechanical structure is analyzed by finite element analysis software. Experiments of rotary resolution and moving stability on the prototype are conducted. The results show that the designed actuator has the advantage of high rotary resolution and large rotary angle,overcoming the coexisting problem between the moving resolution and large moving range of precision actuator.
【Fund】: 国家自然科学基金资助项目(No.50475010);; 国家“863”计划资助项目(No.2002AA423150)
【CateGory Index】: TH703
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