AMiBA六足望远镜支架
The AMiBA Hexapod Telescope Mount
摘要:
AMiBA是目前运行中最大的六足天文望远镜。我们提出了一个描述这种新型的六足安装其主要机械部件-支撑锥,万向节,千斤顶螺钉,和平台-并概述了控制系统的指向模型和支持的操作模式。基于光学指向测试和平台摄影测量,验证了AMiBA六足支架的性能。摄影测量结果表明,平台内部的变形小于120微米rms。对于当前运行的7元件紧凑配置,这对于光学指向校正、无线电对准和无线电相位误差是可以忽略的。方位角和仰角的光学指向误差通过一系列校正相继减小到约0.4 arcmin rms,这满足了我们对7元目标规格的目标。
英文摘要:
AMiBA is the largest hexapod astronomical telescope in current operation. We present a description of this novel hexapod mount with its main mechanical components -- the support cone, universal joints, jack screws, and platform -- and outline the control system with the pointing model and the operating modes that are supported. The AMiBA hexapod mount performance is verified based on optical pointing tests and platform photogrammetry measurements. The photogrammetry results show that the deformations in the inner part of the platform are less than 120 micron rms. This is negligible for optical pointing corrections, radio alignment and radio phase errors for the currently operational 7-element compact configuration. The optical pointing error in azimuth and elevation is successively reduced by a series of corrections to about 0.4 arcmin rms which meets our goal for the 7-element target specifications.
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。