一、问题的提出在迈克耳逊干涉仪实验中,一般用He—Ne激光器作光源,利用非定域干涉测量微小长度的变化,或者利用已知波长校正干涉仪括动臂导轨丝干的精度。光路如图。其中S为激光光源,M_1M_2为反射镜,G_1为分光板,粗黑线表示镀膜面,G_2为补偿板,P为观察 First, the problem raised In Michelson interferometer experiments, the general use of He-Ne laser as a light source, the use of non-local interference measurement of small changes in length, or the use of known wavelength correction interferometer including the accuracy of the boom guide wire . Light Road as shown. Where S is a laser light source, M_1M_2 is a mirror, G_1 is a light splitting plate, a thick black line represents a coating surface, a G_2 is a compensation plate, and P is an observation