在太阳能热利用中,为了要了解集热器性能或进行集热器的设计计算,都需要知道集热器吸收板表面的太阳吸收率。但是,由于表面吸收率并不是一个不变的物理量,它往往同表面制作工艺及使用情况有关。所以表面吸收率的大小,通常需要测定,不能采用手册或参考文献上列出的数据。本文介绍一种简 In solar thermal utilization, in order to understand the performance of the collector or collector design and calculation, you need to know the collector solar collector surface absorptivity. However, since the surface absorptivity is not an invariable physical quantity, it is often related to the surface production process and usage. Therefore, the size of the surface absorption rate, usually need to be measured, can not use the data listed in the manual or reference. This article describes a simple