Subreflector adjustment system for NSRT

doi:10.1117/12.2315172

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	Subreflector adjustment system for NSRT
	Xiang, Binbin1,2 ; Wang, Na1,2 ; Chen, Maozheng1,2 ; Aili, Yusup1,2 ; Xu, Qian1,2 ; Xue, Fei1 ; Hazezhan, Guljaina1,3 ; He, Dalin1 ; Wen, Zhigang1
	2018
会议日期	June 10, 2018 - June 15, 2018
会议地点	Austin, TX, United states
关键词	Radio telescopes Airborne telescopes Degrees of freedom (mechanics) Steerable antennas
卷号	10700
DOI	10.1117/12.2315172
页码	107002E
国家	United states
英文摘要	The Nanshan radio telescope (NSRT) is a fully steerable radio telescope with a diameter of 26 meters, located in Urumqi, Xinjiang, China. The NSRT currently operate in the frequency range from 1.4 GHz to 22.4 GHz. In order to reduce effect of gravity-induced structural deformations on antenna efficiency and pointing accuracy, the subreflector adjustment system has been used to adjust subreflector position in 6 degree-of-freedom to correct subreflector defocusing and reflectors misalignment. The Stewart platform is used as the adjustment mechanism to perform translation -50/+50 mm (along x, y, z axis) and rotation -5/+5 degree (with respect to x, y axis) with repeated positioning accuracies of 0.07 mm (translation) and 0.01 degree (rotation). The paper will mainly introduce an overview of the NSRT subreflector adjustment system, including Stewart platform and control system, performance testing, and position adjustment of subreflector. 2018 SPIE.
源文献作者	4D Technology ; Andor Technology, Ltd. ; Astronomical Consultants and Equipment, Inc. ; et al. ; Giant Magellan Telescope ; GPixel, Inc.
产权排序	1
会议录	Ground-Based and Airborne Telescopes VII 2018
会议录出版者	SPIE
语种	英语
URL标识	查看原文
ISSN号	0277-786X
WOS记录号	WOS:000450858000067
内容类型	会议论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3189]
专题	射电天文研究室_天线技术实验室新疆天文台_射电天文研究室
通讯作者	Xiang, Binbin
作者单位	1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang, China 830011; 2.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Urumqi, Xinjiang,China 830011; 3.University of Chinese Academy of Sciences, Beijing, China 100049
推荐引用方式 GB/T 7714	Xiang, Binbin,Wang, Na,Chen, Maozheng,et al. Subreflector adjustment system for NSRT[C]. 见:. Austin, TX, United states. June 10, 2018 - June 15, 2018.