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10 July 2018 Research on active heat dissipation experimental system for focal plate
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Abstract
The integrated cooling system with multi curved composite grooves on the surface of focal plate was designed to solve the problem that high-density heat resource is distributed on the focal plate. The new active heat dissipation experimental system was proposed considering the wide ambient temperature variation around the focal plate. The temperature field and deformation of the focal plate in the integrated cooling system under the environment of large temperature difference were analyzed by the simulation, and the active heat dissipation system for the focal plate was achieved by precise temperature control of the cooling medium. Meanwhile, the influence of active heat dissipation system on telescope observation was analyzed by the simulation. The simulation and experimental results suggested the integrated cooling system of focal plate can ensure the temperature of the focal plate constant and the deformation error of the focal plate is within the permitted range under the large temperature difference. And the new active heat dissipation system of focal plate can have a fast response speed and good adjustment ability in the condition of the varied ambient temperature, meanwhile, can effectively reduce the effect on the telescope observation.
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Lixuan Cheng, Jianping Wang, Houxi He, Zengxiang Zhou, and Chao Zhai "Research on active heat dissipation experimental system for focal plate", Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107063V (10 July 2018); https://doi.org/10.1117/12.2311791
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