A calibration mechanism based on worm drive for space telescope | |
Chong, Yaqin1,2; Li, Chuang1; Xia, Siyu1; Zhong, Peifeng1,2; Lei, Wang1 | |
2017 | |
会议日期 | 2017-05-19 |
会议地点 | Shanghai, China |
卷号 | 10339 |
DOI | 10.1117/12.2269878 |
英文摘要 | 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. |
产权排序 | 1 |
会议录 | Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers |
会议录出版者 | SPIE |
语种 | 英语 |
ISSN号 | 0277786X |
ISBN号 | 9781510611238 |
内容类型 | 会议论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/29425] |
专题 | 西安光学精密机械研究所_空间光学应用研究室 |
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]. 见:. Shanghai, China. 2017-05-19. |
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