1.2m地平式望远镜视场旋转研究与消旋

Study on Field of Rotation of 1.2m Alt-Az Telescope and Elimination of Image-Rotation

简要地讨论了1.2m地平式望远镜的运动特征,定量地给出物方视场旋转的公式,并对像方视场旋转的量和方向给予确定。通过对三种消旋方式的比较得出物理消旋更适合1.2m地平式望远镜视场消旋的结论。

In this paper, the characteristic of movement of the 1.2m Ah - Az telescope is discussed briefly. The quantitative analysis of formula for the object field rotation is presented, and the quantity and the direction of the image field rotation is determined. Three methods of eliminated rotation are compared, and the conclusion that the physical eliminated rotation is more suitable for 1.2m Ah - Az telescope is drawn. Finally, the eliminated rotation control system＇s structure is introduced.