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提出一种合成孔径的多微型组件光学望远镜定相监测的全息系统。在该系统基础上安上己知的衍射光栅消色差干涉仪系统。给出监测系统样机的理论研究结果,这是具有相同取向和衍射结构、刻线等距分布的三个平面透射衍射光栅的组合。表明当用无限远的非单色辐射源在望远镜的聚焦平面照明所研究的全息系统时,将观察到光束通过望远镜不同的微型组件后同相的和取向相同的单色干涉图。提出了定相监测的准则,是用在聚焦平面的任意固定点得到的干涉图相增量与其照明监测装置产生的总的辐射波长变化之比,这个比值是在聚焦平面的任意固定点测得的。给出描述可实现的定相监测精度与微型组件几何参数的公差值之间依赖关系的表达式。
A holographic system of multi-component optical telescope with phased monitoring of synthetic aperture is proposed. On the basis of the system, a known diffraction grating achromatic interferometer system is installed. The theoretical research results of the monitoring system prototype are given, which are the combination of three plane transmission diffraction gratings with the same orientation and diffraction structure and the reticle equidistant distribution. Shows that when the holographic system under study is illuminated with the infinity non-monochromatic radiation source at the telescope’s focal plane, a monochromatic interference pattern with the same and the same orientation will be observed after passing the beam through different micro-components of the telescope. The criterion of phased monitoring is proposed, which is the ratio of the increment of the interferogram phase at any fixed point of the focal plane to the change of the total radiation wavelength produced by its illumination monitor, measured at any fixed point in the focal plane of. An expression describing the dependencies between the achievable accuracy of phased monitoring and the tolerance values of the geometrical parameters of the microcomponents is given.