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23 June 2006 Mount control system for the CFGT telescope
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Abstract
The concept for Chinese Future Giant Telescope (CFGT) with 30-m aperture has been around for several years, although the requirements for control system are still far from completed and conclusive at this stage. Since the project was proposed more study on a number of key issues relevant to the control system has been conducted. In particular the mount control system for the giant telescope has been put forward under exploration. With our ongoing 4-m LAMOST telescope just underwent a successful mount drive test the LAMOST control group has become more knowledgeable with hands on experience that would be quite useful for mount drive design of even large telescope. This paper focuses on the mount control system design for CFGT telescope in general. Particular aspects such as the effect of large moment of inertia with ultra low-speed and multi-disturbance are included. Friction drive is opted for both historical and economical reasons. Drive stiffness and servo control parameters optimization are discussed based on the workshop test with LAMOST mount that could possibly be mapped to CFGT.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xinqi Xu, Zhiming Dong, and Wangping Zhou "Mount control system for the CFGT telescope", Proc. SPIE 6267, Ground-based and Airborne Telescopes, 62672B (23 June 2006); https://doi.org/10.1117/12.671059
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