For this purpose, the paper discusses the development process of electric performance compensation methods for radio telescopes, presents the characteristics of large antennas with the application of the active surface adjustment, summarizes the key active adjustment technologies, compares typical large antennas using active adjustment for the antenna main reflectors, and eventually discusses the structure design program and research proposal for active surface compensation of the QiTai Telescope (QTT) antenna in Xinjiang, China.
Therefore, it is suggested that the QTT antenna actuators should adopt a stepping motor and the light screw design, with a precision sensor design scheme, which should be supplemented by deicing and low-temperature resistance sealing measures to ensure robust operation under the conditions of the Qitai observatory environment.
Wang, "Xinjiang Qitai 110 m radio telescope," Scientia Sinica Physica, Mechanica & Astronomica, vol.
Weather Z-value Weather Z-value stations statistics stations statistics Alashankou -3.71 Wenquan -4.52 Urumqi -2.98 Karamay -5.78 Qinghe -1.95 Altay -4.02 Hebukesaier -4.83 Fuhai -4.14 Yining -3.07 Shihezi -1.83 Qitai
-5.43 Jimunai -3.78 Dabancheng -3.21 Habahe -5.05 Zhaosu -3.05 Tuoli -2.26 Caijiahu -3.29 Fuyun 1.40 Wusu -5.62 Beitashan 0.61 Jinghe -4.38 Tacheng 0.33 TABLE 2: Period statistics.