| FAST主反射面自动控制系统 |
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| 引用本文： | 朱丽春. FAST主反射面自动控制系统[J]. 科学技术与工程, 2006, 6(13): 1890-1894 |
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| 作者姓名： | 朱丽春 |
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| 作者单位： | 中国科学院国家天文台,北京,100012 |
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| 基金项目： | 国家自然科学基金跨科学部交叉重点项目（10433020）资助 |
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| 摘 要： | 500m口径球反射面射电望远镜FAST将是国际上最大、最灵敏的射电天文望远镜.利用贵州喀斯特洼坑作为台址,在洼坑内铺设500m球冠状反射面,通过主动控制形成抛物面以汇聚电磁波.针对FAST主动反射面自身的特点,提出了主动反射面节点运动控制的总体策略并推演了控制算法,完成模型控制实验.实验结果表明该套控制系统实现了FAST主动反射面形变要求,达到了要求的精度,可作为将来FAST原型主反射面控制的可选方案之一.
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| 关 键 词： | 射电天文 射电望远镜 主动反射面控制 现场总线 |
| 文章编号： | 1671-1815（2006）13-1890-05 |
| 收稿时间： | 2006-03-07 |
| 修稿时间： | 2006-03-07 |
The Arithmetic Control System of Active Reflector for FAST |
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| ZHU Lichun. The Arithmetic Control System of Active Reflector for FAST[J]. Science Technology and Engineering, 2006, 6(13): 1890-1894 |
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| Authors: | ZHU Lichun |
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| Abstract: | A Five-hundred-meter-Aperture Spherical Telescope (FAST) has been proposed to be built in the unique karst area of southwest China. The FAST obviously will achieve the largest collecting area in the world. The illuminated part of the main spherical reflector is continuously adjusted, in real time, to fit a paraboloid of revolution. This is done by actuating an active control system synchronously with the motion of the feed while tracking an object. Considring the characteristics of FAST itself , a control strategy is introduced . A control system is designed based on the technology of field bus. |
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| Keywords: | radio astronomy large radio telescope network control and the technology field bus |
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