一、光波干涉原理的利用:当一个具有理想平面的平晶与一个理想平面的被测表面成一很小的夹角时,视线可以透过平晶在被测表面与平晶的研合面上看到光波干涉带,这干涉带是与两平面之接触线相平行的(如图1)。根据等厚干涉的原理,在同一条干涉带上,由被测表面至平晶表面的距离是相? First, the use of light interference principle: When a flat with an ideal plane and an ideal plane measured surface into a very small angle, the line of sight through the flat in the measured surface and the flat surface of the crystal See the light interference zone, the interference zone is parallel to the contact line with the two planes (Figure 1). According to the principle of equal thickness interference, in the same interference zone, the distance from the measured surface to the flat surface is the phase?