本文叙述了中国测试技术研究院研制的绝对辐射计光电不等效因子的实验测定结果,其不确定度为±0.14％。介绍了绝对辐射计与两种黑体的对比结果,其一致性在(-0.10～+0.13)％以内符合。文中还给出了电校准绝对辐射计与自校准硅二极管辐射计的对比,结果在0.15％以内符合。该自校准硅二极管辐射计曾参加国际比对,其结果为相互间符合在±0.10％以内。 This paper describes the experimental results of the photometric inequality factor of absolute radiometer developed by China Institute of Testing Technology, with an uncertainty of ± 0.14%. The comparison between absolute radiometer and two kinds of blackbody is introduced. The consistency between them is within (-0.10 ~ + 0.13)%. The article also gives a comparison between the electrically calibrated absolute radiometer and the self-calibrated silicon diode radiometer. The result is within 0.15%. The self-calibrating silicon diode radiometers have participated in international comparisons and the results are within ± 0.10% of each other.