对40mm开口的玻璃体吸收能量计的主要性能进行了实验研究。对五台能量计进行激光比对的结果,符合在±2％以内。其中一台与美国阿波罗体吸收能量计进行了比对,所测能量绝对值符合在±4％以内。 The main performance of 40mm open glass energy absorption meter was experimentally studied. The results of laser alignment on the five energy meters are within ± 2%. One of them was compared with Apollo absorption energy meter in the United States, and the absolute value of measured energy was within ± 4%.