聚合物定子超声电机驱动的变倍激光扩束镜  

Multi-multiple Beam Expander Driven by Ultrasonic Motor with Polymer-Based Stator

作　　者：潘松[1] 肖忠 徐张凡 陈雷[1] 徐洪波 PAN Song;XIAO Zhong;XU Zhangfan;CHEN Lei;XU Hongbo(State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics Nanjing,210016,China;Weichai Power Yangzhou Diesel Co.,Ltd.Yangzhou,225000,China;Navigation and Inertial Division,Shanghai Aerospace Control Technology Institute Shanghai,201109,China)

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,南京210016 [2]潍柴动力扬州柴油机有限责任公司,扬州225000 [3]上海航天控制技术研究所导航与惯性事业部,上海201109

出　　处：《振动．测试与诊断》2021年第5期855-862,1029,共9页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金面上资助项目(51575260);工信部2017年智能制造综合标准化与新模式应用专项资助项目;江苏高校优势学科建设工程资助项目。

摘　　要：针对激光扩束镜动态连续变倍需求,提出了利用单一中空旋转行波超声电机作为驱动源的连续变倍激光扩束镜。根据变焦准直扩束原理,提出了变倍组透镜和补偿组透镜的移动距离转换关系。采用3D建模软件对扩束镜的凸轮机构、导向机构和驱动机构进行了设计,并进行了受力分析,加工出了一套扩束比为3~6的扩束镜样机。为了降低装置整体的重量,采用聚合物作为超声电机定子的材料。搭建了实验平台,对扩束镜样机的性能进行了测试。结果表明:扩束镜光学扩束效果良好,瞬态性能优良,定位误差小于0.01 mm。笔者提出的聚合物质定子超声电机作为扩束镜的驱动变倍激光扩束镜,系统整体重量更小,能够满足扩束镜快速高精度的光学变倍需求。A zoom laser beam expander driven by a single hollow traveling wave rotary ultrasonic motor is proposed in this paper to meet the requirements of its dynamic continuous zoom. The moving function curves of zoom lens and compensating lens are presented based on the zoom principle. A 3 D calculating model of the cam mechanism,guiding mechanism and driving mechanism of beam expander is constructed in 3 D modeling software,and the theoretical analysis of force is carried out. A prototype of the beam expander is designed and manufactured,which can realize the zoom range continuously changed from 3 to 6. In order to further reduce the overall weight of the device,a type of polymer material is used as the stator of the ultrasonic motor. An experimental platform is set up to verify the performance of the prototype. The experimental results show that the presented optical beam expander has a fast transient characteristics and the positioning accuracy of the prototype is less than 0.01 mm. The beam expander has realized dynamic linear zooming. With the ultrasonic motor as the driving source it can meet the requirements of rapid and high precision positioning while reducing the weight of the system.

关 键 词：超声电机 连续变倍 激光扩束镜 聚合物定子 

分 类 号：TH133[机械工程—机械制造及自动化]