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Measurement of angles between channels for an extreme ultra-violet telescope
Author(s): 
Pages: 552-554
Year: Issue:  5
Journal: OPTICAL TECHNIQUE

Keyword:  极紫外望远镜边缘探测亚像元;
Abstract: 极紫外望远镜是由四个单通道的望远镜捆绑在一起,以便同时对太阳的相同部分观测,由于受地面装调以及发射过程中的影响,无法保证四个通道光轴严格平行,必然带来观测位置上的误差.只要测出各通道之间的光轴夹角,便可在像面上采取适当的处理方法,以便减小这种误差,但这一夹角的测量精度必须控制在0.1″内.为达到如此高的精度,采用了太阳局部边缘探测的方法,很好地解决了这一问题.
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