Experiments at the W.M. Keck Observatory to support the Thirty Meter Telescope design work
Experiments at the W.M. Keck Observatory to support the Thirty Meter Telescope design work
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DOI：
10.1117/12.857960
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发表时间：
2010-07
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影响因子：
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通讯作者：
W. Skidmore;T. Travouillon;R. Riddle;Kyle K. Kinoshita;R. Johnston;Phil Murg;Hugh A. Thompson;R. H. Matsuda;M. Colavita;Grant Tolleth;R. Goodrich;E. Chock;H. Lewis;S. Panteleev
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文献类型：
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作者：
W. Skidmore;T. Travouillon;R. Riddle;Kyle K. Kinoshita;R. Johnston;Phil Murg;Hugh A. Thompson;R. H. Matsuda;M. Colavita;Grant Tolleth;R. Goodrich;E. Chock;H. Lewis;S. Panteleev
为了验证关于30米望远镜（TMT）工作环境的各种假设，验证用于指导TMT设计工作的建模包，并直接调查几个子系统的预期操作，我们已经开始在凯克望远镜进行广泛的环境测量活动。我们已经测量和表征的振动环境周围的天文台地板上，并在一定范围内的操作条件下的望远镜上的某些位置。类似地，望远镜和主镜周围的声学环境的特征在于频率高于2Hz。内部和外部的风和温度场正在使用组合声波风速计和PRT传感器进行测量。我们正在测量望远镜的位置误差和驱动扭矩信号，以调查风引起的望远镜运动。安装在望远镜上的湍流计正在测量望远镜管内的光学湍流。这项实验工作是由望远镜和工程传感器日志文件和测量，主要是位于主望远镜光学，主镜段边缘传感器误差信号（残差），望远镜结构温度测量和望远镜状态信息的加速度计的广泛分析补充。
In order to validate various assumptions about the operating environment of the Thirty Meter Telescope (TMT), to validate the modeling packages being used to guide the design work for the TMT and to directly investigate the expected operation of several subsystems we have embarked on an extensive campaign of environmental measurements at the Keck telescopes. We have measured and characterized the vibration environment around the observatory floor and at certain locations on the telescope over a range of operating conditions. Similarly the acoustic environment around the telescope and primary mirror has been characterized for frequencies above 2 Hz. The internal and external wind and temperature fields are being measured using combined sonic anemometer and PRT sensors. We are measuring the telescope position error and drive torque signals in order to investigate the wind induced telescope motions. A scintillometer mounted on the telescope is measuring the optical turbulence inside the telescope tube. This experimental work is supplemented by an extensive analysis of telescope and engineering sensor log files and measurements, primarily those of accelerometers located on the main telescope optics, primary mirror segment edge sensor error signals (residuals), telescope structure temperature measurements and the telescope status information.