介绍了激光衰减法测量粒子参数的基本原理。搭建了激光衰减法测量高铝含量富燃料推进剂实验系统,解决了燃烧环境下粒度测试的光学介入问题,对高铝含量富燃料推进剂中粒子参数进行测量,对所得的凝相燃烧产物进行电镜分析,并对电镜照片进行分析处理,计算出燃烧后凝相产物平均粒径,验证了激光衰减法测量粒子参数的可行性和合理性. The basic principle of laser attenuation method for measuring particle parameters is introduced. A laser decay method was established to test the fuel-rich propellant system with high content of aluminum. The optical interference problem of particle size measurement in combustion environment was solved. The particle parameters in the high-content aluminum-rich fuel propellant were measured. Electron microscopy (SEM) analysis and electron microscopic image analysis were performed to calculate the average particle size of the condensed product after combustion. The feasibility and rationality of the laser destructive method to measure the particle parameters were verified.