Application of structural filter to principal axis system of telescope

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	Application of structural filter to principal axis system of telescope
	Deng, Y.-T.; H.-W. Li; J.-L. Wang and J. Liu
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2017
卷号	25 期号:4
英文摘要	To improve the closed-loop bandwidth and dynamic performance of control system in a telescope, the effect of structural filters on the closed-loop performance of the control system was researched. According to the spring-mass model of mechanical tracking frame for the telescope, the transfer function of the system was deduced and the relation between the rotational inertias for electrical machines and loads and the resonant frequencies was analyzed. Then, a structural filter was designed based on frequency characteristics of an open-loop system, and it was added into the control loop to reduce the amplitude of mechanical resonance. The design method of the structural filter was introduced and influence of the added structural filter on the close-loop performance of control system was analyzed. Finally, a confirmatory experiment was performed on a rotary table of tracking frame for a 2-meter-high telescope. The experimental result shows that closed-loop bandwidth of the system increases from 10 Hz to 13 Hz after adding the structural filter, which effectively restrains the stable resonance of speed, improves the speed tracking performance of control system in the telescope. These results verify the effectiveness of the structural filter. 2017, Science Press. All right reserved.
语种	中文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/58878]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Deng, Y.-T.,H.-W. Li,J.-L. Wang and J. Liu. Application of structural filter to principal axis system of telescope[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2017,25(4).
APA	Deng, Y.-T.,H.-W. Li,&J.-L. Wang and J. Liu.(2017).Application of structural filter to principal axis system of telescope.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,25(4).
MLA	Deng, Y.-T.,et al."Application of structural filter to principal axis system of telescope".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 25.4(2017).