Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Alidade"'
Publikováno v:
Micromachines, Vol 14, Iss 7, p 1283 (2023)
One of the key reasons for the deterioration of antenna pointing accuracy for radio telescopes is the deformation and tilt of antenna alidades, which primarily result from track unevenness and thermal gradients. A high-precision inclinometer measurem
Externí odkaz:
https://doaj.org/article/ffbbaf94391948e9a5c5bf2d7c684f7a
Publikováno v:
Micromachines; Volume 14; Issue 7; Pages: 1283
One of the key reasons for the deterioration of antenna pointing accuracy for radio telescopes is the deformation and tilt of antenna alidades, which primarily result from track unevenness and thermal gradients. A high-precision inclinometer measurem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::19379afef91912e4c3ffb5b4b4d29c7c
Akademický článek
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Autor:
Bingen Yang, Zhi-Qiang Shen, Jinqing Wang, Rongbing Zhao, Li Fu, Qinghui Liu, Linfeng Yu, Quanbao Ling, YongBin Jiang
Publikováno v:
Experimental Astronomy. 48:49-64
To assure high pointing precision of the Tianma radio telescope (TMRT), new models based on a inclinometer measurement system are added to the classical pointing model. This involves four main tasks. Firstly, the inclinometer measurement system is se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2ee3290d810651d63b66dc14e8c2115
https://doi.org/10.1007/s10686-019-09639-7
https://doi.org/10.1007/s10686-019-09639-7
Publikováno v:
Ground-based and Airborne Telescopes VII.
Nanshan Radio Telescope (NSRT) constructed in Nanshan Urumqi, Xinjiang, China, it is a fully steerable radio telescope. It contribution not only the Chinese astronomy community but also an important member of international VLBI net. After more than 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74ccaa3f8186074309087825b396f493
https://doi.org/10.1117/12.2311851
https://doi.org/10.1117/12.2311851
Publikováno v:
Ground-based and Airborne Telescopes VII.
Following the magnitude 7.1 earthquake in central Mexico on 19 September 2017, personnel from the Large Millimeter Telescope/Gran Telescopio Milimetrico (LMT/GTM) performed a visual inspection of the foundation and structure of the LMT/GTM. Though no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2204541903f25093f517bea9986d793e
https://doi.org/10.1117/12.2311669
https://doi.org/10.1117/12.2311669
Publikováno v:
Applied Mechanics and Materials. 741:61-65
The QTT (QiTai 110m radio telescope) antenna, with large aperture and high main-reflector surface precision, whose connecting strategy between back-up structure and alidade was investigated. In order to make the reflector surface deformation coordina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18603455d975736c5ef10a252aff2fe8
https://doi.org/10.4028/www.scientific.net/amm.741.61
https://doi.org/10.4028/www.scientific.net/amm.741.61
Akademický článek
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Publikováno v:
SPIE Proceedings.
Aimed at the alidade of TM65m antenna, the distributions of temperature field and effects of thermal deformations on pointing accuracy were analyzed based on thermometers and inclinometer. The alidade temperature and cross-elevation tilt were recorde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b31bf8f8b9a8360a825fdba922fb1da3
https://doi.org/10.1117/12.2231263
https://doi.org/10.1117/12.2231263
Akademický článek
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