【摘要】 本文给出了构成大面积黑体所经常采用的方形空腔的表面有效发射率的精确数学计算公式,同时应用数值积分的方法,给出了几种典型空腔的计算结果。文中的计算方法也适用于截面为正三角形、正六边形空腔有效发射率的计算。更多还原

【Abstract】 A formula is presented in this paper for the precise calculation of the surfaceemissivity of square cavities which are often used in making great-surface blackbodies.Results for some typical cavities are given with a numerical integration method.更多还原