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题名: Study on Telescope Gain Affected by a Multilevel Hybrid Mechanism in FAST
作者: Chai, Xiaoming1; Fan, Jin1; Zhou, Lanchuan1; Peng, Bo1, 2
刊名: ADVANCES IN MECHANICAL ENGINEERING
出版日期: 2014
DOI: 10.1155/2014/841526
文章类型: Article
英文摘要: This paper focuses on the telescope gain affected by a multilevel hybrid mechanism for the feed positioning in the five-hundred-meter aperture spherical radio telescope (FAST) project, which is based on the positioning accuracy analysis of the mechanism. First, error model for the whole mechanism is established and its physical meaning is clearly explained. Then two kinds of error sources are mainly considered: geometric errors and structural deformations. The positioning error over the mechanism's workspace is described by an efficient and intuitive approach. As the feed position error will lower the telescope gain, this influence is analyzed in detail. In the end, it is concluded that the design of the mechanism can meet the requirement of the telescope performance.
WOS标题词: Science & Technology ; Physical Sciences ; Technology
类目[WOS]: Thermodynamics ; Engineering, Mechanical
研究领域[WOS]: Thermodynamics ; Engineering
收录类别: SCI
语种: 英语
WOS记录号: WOS:000335037100001
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15701
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Natl Astron Observ, Joint Lab Radio Astron Technol, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Beijing 100012, Peoples R China
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