北京航空航天大学学报 ›› 2006, Vol. 32 ›› Issue (04): 421-425.

• 论文 • 上一篇    下一篇

太阳X-EUV成像望远镜波长选择装置

张鑫1, 苏东林1, 李保权2, 韦飞2   

  1. 1. 北京航空航天大学 电子信息工程学院, 北京 100083;
    2. 中国科学院?空间科学与应用研究中心, 北京 100080
  • 收稿日期:2005-04-14 出版日期:2006-04-30 发布日期:2010-09-20
  • 作者简介:张 鑫(1977-),男,河北邢台人,博士生, zhangxin@ee.buaa.edu.cn.
  • 基金资助:

    国家自然科学基金资助项目(40474069)

Filter wheel device in solar X-EUV image telescope

Zhang Xin1, Su Donglin1, Li Baoquan2, Wei Fei2   

  1. 1. School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
    2. Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2005-04-14 Online:2006-04-30 Published:2010-09-20

摘要: 太阳X射线-极紫外射线(X-EUV,X rays-Extreme Ultraviolet)成像望远镜是我国专门服务于空间天气预报研究的太阳短波成像监测仪器,望远镜工作在0.4~10?nm的X射线波段和19.5?nm的极紫外谱段,能够提供全日面、高分辨率的成像观测.波长选择装置是该望远镜的一个重要子系统,可以增强望远镜动态响应范围,有助于获取更多的反演日冕等离子体参数,这些参数可用来诊断日冕活动.该装置的运动控制具有低功耗的特点,能够满足空间应用环境的特殊要求.其中,步进电机精位置控制是设计的重点,有2种光电编码矩阵可以用于位置检测,从工程可实现角度优选出其中一种,并且从工程可靠性角度分析了该光电编码矩阵的故障模式,提出了在轨故障处理的预案.

Abstract: The solar X-EUV(X rays-extreme ultraviolet) imaging telescope is a solar shortwave imaging instrument, which can be used to monitor the solar activities and predict space weather. The solar X-EUV imaging telescope operates in the 0.4~10?nm X-ray waveband and the 19.5?nm EUV wavelength, and it can provide the high resolving solar full-disk. The filter wheel is an important part of the solar X-EUV imaging telescope, which can expand the dynamic range of responses, redound to reconstruct the plasma parameters from which different solar activities can be analyzed. Low power consumption is one characteristic of the movement control of the filter wheel, which needs to satisfy the special requirement of space application. In addition, it is the emphasis to develop a method to maintain the accurate position of step motor. There are two types of PECM(photoelectric coding matrix) that can be used to detect positions. And then, one of the types is adopted which is realizable in practice. Furthermore, form the point of view of functional reliability, the failure mode analysis of PECM is performed and the correspondent solution is provided.

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