摘要
类比干涉原理,利用菲涅尔圆孔(屏)衍射公式来计算"光滑"小球体的表面光洁度,并简要分析其局限。通过理论推导和实验分析,得出用菲涅尔圆孔(屏)衍射研究球体的光洁度是可行的方法。
Analogyed interference principle.Used the formula of fresnel circular aperture （disk） diffraction to calculate the surface-finish of a small sphere whose surface was ＂smooth＂ , then analysed the limitations of it in briefly.Through analysis of theoretical and experimental gained that it was feasible to use fresnel circular aperture （disk） diffraction to calculate the surface-finish.
基金
贵州省教育厅自然科学研究项目黔教科"部分相干光杨氏实验特性研究"
项目编号:20090067
关键词
表面光洁度
球体
衍射图样
衍射环级
Surface-finish
Sphere
Diffraction Pattern
Diffraction Ring Level
