为了自准直望远镜的检验,必须使用相应的精确校准仪。就自准直望远镜来说检验,PKNiM除用正切直线外,还可使用一种以激光为光源的新式干涉仪。它具有He—Ne激光器,两个带有平行反射镜偶的反射系统和一个电子读数装置。激光干涉仪(图1)的光路是由带有平行反射镜偶AA—BB和CC—DD的反射系统1和2构成。第一组反射系统被固定在基体上;第二组反射系统能够相对第一组转动。为了保持等同距离,反射镜胶粘在石英管的端面上。端面向管轴 In order to be self-collimated telescope inspection, you must use the corresponding precision calibrator. As far as self-collimation telescopes are concerned, PKNiM uses a new type of interferometer that uses a laser as a light source, in addition to its tangent line. It has He-Ne lasers, two reflection systems with parallel mirrors and an electronic reading device. The optical path of the laser interferometer (Figure 1) is made up of reflection systems 1 and 2 with parallel mirrors AA-BB and CC-DD. The first group of reflection systems is fixed on the base; the second group of reflection systems is rotatable relative to the first group. In order to maintain the same distance, the mirror glued to the end of the quartz tube. End face tube axis