根据黑体辐射源的理论和计算,对影响黑体性能的几个问题,即腔长比、热容量、视场角、温度分布的均匀性等问题进行讨论,设计出一种性能优良、结构简单、使用方便的工业用标准中温黑体源。本文首次提出了视场角概念,并讨论它对黑体性能的影响。 According to the theory and calculation of blackbody radiation source, several problems that affect the performance of blackbody, such as cavity length ratio, heat capacity, angle of view and the uniformity of temperature distribution, are discussed. An excellent performance, simple structure, Convenient industrial standard temperature blackbody source. This paper presents the concept of angle of view for the first time and discusses its impact on blackbody performance.