27 September 2012 Progress of the active reflector antenna using laser angle metrology system
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Abstract
An active reflector is one of the key technologies for constructing large telescopes, especially for the millimeter/sub-millimeter radio telescopes. This report presents a new and substantial progress on the efficient laser angle metrology system for the active reflector antenna of the large radio telescopes, with a plenty of experiments based on a four-panel prototype system constructed by Nanjing Institute of Astronomical Optics and Technology (NIAOT). The test results prove that this technology is workable for sub-millimeter radio telescopes both in accuracy and time-response. Thus it can be applied to the reconstruction of the active reflector antenna in China and play a central role in promoting the new area of sub-mm radio astronomy.
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Yong Zhang, Jie Zhang, Dehua Yang, Guohua Zhou, Aihua Li, Guoping Li, "Progress of the active reflector antenna using laser angle metrology system", Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84444Y (27 September 2012); doi: 10.1117/12.923642; https://doi.org/10.1117/12.923642
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