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arXiv 0708.0622astro-ph
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大熊太阳天文台新型太阳望远镜玻璃纤维罩的热环境

The Thermal Environment of the Fiber Glass Dome for the New Solar Telescope at Big Bear Solar Observatory

A. P. Verdoni, C. Denker, J. R. Varsik, S. Shumko, J. Nenow, R. Coulter

摘要:

新太阳望远镜(NST)是一个1.6米的离轴格雷戈里型望远镜,带有赤道架和开放式光学支撑结构。为了减轻沿着暴露的光路的温度波动,必须最小化局部/圆顶相关视宁度的影响。为了实现这一目标,NST将被安置在一个5/8球玻璃纤维圆顶,配备了14个活跃的通风口均匀分布在其周边。14个通风口装有百叶窗,百叶窗彼此独立地打开和关闭,以调节和引导空气通过圆顶。2006年1月,在整个圆顶安装了16个热探头,并测量了温度分布。测量结果证实,圆顶内部存在5摄氏度左右的强烈热梯度。在2006年12月,第二组温度测量使用不同的配置。在这项研究中,我们提出了这些测量的结果,以及它们集成到热控制系统(ThCS)和整个望远镜控制系统(TCS)。

英文摘要:

The New Solar Telescope (NST) is a 1.6-meter off-axis Gregory-type telescope with an equatorial mount and an open optical support structure. To mitigate the temperature fluctuations along the exposed optical path, the effects of local/dome-related seeing have to be minimized. To accomplish this, NST will be housed in a 5/8-sphere fiberglass dome that is outfitted with 14 active vents evenly spaced around its perimeter. The 14 vents house louvers that open and close independently of one another to regulate and direct the passage of air through the dome. In January 2006, 16 thermal probes were installed throughout the dome and the temperature distribution was measured. The measurements confirmed the existence of a strong thermal gradient on the order of 5 degree Celsius inside the dome. In December 2006, a second set of temperature measurements were made using different louver configurations. In this study, we present the results of these measurements along with their integration into the thermal control system (ThCS) and the overall telescope control system (TCS).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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