本文就黑体辐射的单波段能量计算的几种方法作一介绍: 一、积分求解法利用此法来计算是十分繁琐的,在工程应用上必须寻求其他计算方法。二、分段求和法把同一温度T对应的W～λ曲线在所取波段范围内划分成若干间隔相等的小段,用中值定理分别求出各小段的能量,然后把各小段的能量加在一起,就得到了所求的能量。划分的段数越多,所求数据的精度越高;则分的段数越少,求得的数据精度就差些。 In this paper, several methods of single-band energy calculation of blackbody radiation are introduced: First, the integral solution method to calculate using this method is very tedious, and other calculation methods must be sought in engineering application. Second, the piecewise summation method The W ~ λ curve corresponding to the same temperature T is divided into a number of equal-sized short segments in the range of the band taken, with the median theorem were calculated the energy of each small segment, and then the energy of each small segment plus Together, you get the energy you are looking for. The more segments are divided, the higher the accuracy of the data is sought. The smaller the number of segments, the less accurate the data is.