Institutional Repository of Radio Astronomy Research Laboratory
| Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors | |
Zhao, Yong1; Du, Jingli1; Xu, Qian2 ; Bao, Hong1
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| 2019-02-01 | |
| Source Publication | SENSORS
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| ISSN | 1424-8220 |
| Volume | 19Issue:3Pages:619 |
| Contribution Rank | 2 |
| Abstract | Environmental loads linked with pointing errors, such as gravity, thermal gradients, and wind disturbances, are a serious concern for large-aperture high-frequency radio telescopes. For the purpose of maintaining the pointing performance of a telescope, a contact measurement scheme is proposed on basis of fiber Bragg grating (FBG) strain sensors that can monitor the sub-reflector shift in real time as the input data of the adjustment system. In this scheme, the relationship between the in situ strain measurement and the deformation of the supporting structure, which is the main cause of sub-reflector shift, is deduced using the inverse Finite Element Method (iFEM). Finally, experimental studies are carried out on a simple physical structure model to validate the effectiveness and accuracy of the contact measurement scheme. |
| Keyword | environmental loads sub-reflector shift supporting structure inverse finite element method FBG strain sensors |
| DOI | 10.3390/s19030619 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | SHAPE |
| Funding Project | National Natural Science Foundation of China[51675398] ; National Natural Science Foundation of China[51775401] ; National Key Basic Research Program of China[2015CB857100] ; National Science Foundation of China (NSFC)[U1731135] ; Chinese Academy of Sciences (CAS)[U1731135] ; CAS Light of West China Program[2016-QNXZ-A-7] |
| WOS Research Area | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| WOS Subject | Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation |
| WOS ID | WOS:000459941200182 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/2543 |
| Collection | 射电天文研究室_天线技术实验室 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题2：复杂环境下天线结构保型与高精度指向控制 |
| Corresponding Author | Bao, Hong |
| Affiliation | 1.Xidian Univ, Key Lab Elect Equipment Struct Design, Minist Educ, Xian 710071, Shaanxi, Peoples R China 2.Chinese Acad Sci, Xinjiang Observ, Natl Astron Observ, Urumqi 830011, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao, Yong,Du, Jingli,Xu, Qian,et al. Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors[J]. SENSORS,2019,19(3):619. |
| APA | Zhao, Yong,Du, Jingli,Xu, Qian,&Bao, Hong.(2019).Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors.SENSORS,19(3),619. |
| MLA | Zhao, Yong,et al."Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors".SENSORS 19.3(2019):619. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhao-2019-Real-Time （4781KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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