针对一般激光光源和脉冲光源的稳定性欠佳,提出一种不依赖光源稳定性,不必与计量基准器相比较的改进型分束比对线性检测方法,以解决光辐射探测器,特别是脉冲激光探测器的精密线性检测问题.介绍了获得国家专利的检测仪器,在给出的一个检测实例中,检测出了非线性小于±0.05%的探测器工作范围. Aiming at the poor stability of general laser source and pulsed light source, an improved linear detection method of beam splitting ratio is proposed, which does not depend on the stability of light source and does not need to be compared with the metrological reference instrument, so as to solve the problems of optical radiation detector, especially pulse The problem of precise linear detection of laser detector is introduced. A nationally tested detection instrument is introduced. In a given detection example, the working range of the detector with less than ± 0.05% nonlinearity is detected.