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A calibration mechanism based on worm drive for space telescope
Chong, Yaqin1,2; Li, Chuang1; Xia, Siyu1; Zhong, Peifeng1,2; Lei, Wang1
2017
会议名称Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
会议录名称Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
卷号10339
会议日期2017-05-19
会议地点Shanghai, China
出版者SPIE
产权排序1
摘要

In this paper, a new type of calibration mechanism based on worm drive is presented for a space telescope. This calibration mechanism based on worm drive has the advantages of compact size and self-lock. The mechanism mainly consists of thirty-six LEDs as the light source for flat calibration, a diffuse plate, a step motor, a worm gear reducer and a potentiometer. As the main part of the diffuse plate, a PTFE tablet is mounted in an aluminum alloy frame. The frame is fixed on the shaft of the worm gear, which is driven by the step motor through the worm. The shaft of the potentiometer is connected to that of the worm gear to measure the rotation angle of the diffuse plate through a flexible coupler. Firstly, the calibration mechanism is designed, which includes the LEDs assembly design, the worm gear reducer design and the diffuse plate assembly design. The counterweight blocks and two end stops are also designed for the diffuse plate assembly. Then a modal analysis with finite element method for the diffuse plate assembly is completed. © 2017 SPIE.

作者部门空间光学应用研究室
DOI10.1117/12.2269878
收录类别EI ; ISTP
ISBN号9781510611238
语种英语
ISSN号0277786X
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/29425
专题空间光学技术研究室
作者单位1.Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, 17 Xinxi Road, Xian, Shaanxi; 710119, China
2.University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing; 100049, China
推荐引用方式
GB/T 7714
Chong, Yaqin,Li, Chuang,Xia, Siyu,et al. A calibration mechanism based on worm drive for space telescope[C]:SPIE,2017.
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