多光谱问题中辐射量与光度量之间的关系

Relations between radiometry and photometry in the multispectral technic

本文简要阐述了光度量与辐射度量的基本概念和它们之间的相互转换关系。按照每个量的定义式，理论计算出在特定的辐射源下，某种光敏器件达到某一电压输出值时，分别所需要的光度量和辐射度量量值。在工作实验中，使用了２７９３Ｋ卤钨灯照射ＣＣＤ１４３Ａ光电器件，同时分别测量了光度量与辐射度量，其结果与计算值相近。

In this paper. The fundamental conception of photometry and radiometry and their relations are discussed. Acording to each definition, through calculating an example, this paper shows that given radiation source, one type photo detector has a certain output signal to which the definate values of photometry and radiometry are needed. In experiments, we used the 2793K halogen tungsten lamp to irradiate the detector of CCD143A and measured the values of photometry and radiometry. The correction of theory and experiment was verified.