CORC

浏览/检索结果: 共1条,第1-1条 帮助

限定条件                    
已选(0)清除 条数/页:   排序方式:
Design and experimental research of a new type focus mechanism used in space-based telescope (EI CONFERENCE) 会议论文
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
Wang D.; Jia X.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
The position of focal plane will be changed because of temperature fluctuation and vacuum environment. In order to make the telescope work well  positioning accuracy of the mechanism is 0.008mm. The performance satisfies the need of precision  a focusing mechanism is needed. To majority of large space-based telescopes  and the scheme design is reasonable and practicable. 2012 IEEE.  the general way to do this would be to use a reflector  which was located in the backfocal distance. One of typical schemes of this mechanism was introduced  however  because of the big axial size  the mechanism can't be used when the size of the enclosure was limited. A new type of focusing mechanism was introduced  which has such advantages of small size  high accuracy and low mass. The design and test methods had been discussed. According to the results  the repeatability positioning accuracy is 0.0025mm  


©版权所有 ©2017 CSpace - Powered by CSpace