提出了一种确定激光颗粒计数器光敏区强度分布的普遍方法。由于光敏区光强和颗粒在光敏区的位置有关,因此需要对其进行均匀化处理。对在激光焦平面内,照射面积作为光强的函数进行了分析,这对确定激光颗粒计数器的光学采样速率是重要的。 A general method to determine the intensity distribution of the photosensitive region of a laser particle counter is proposed. Since the light intensity of the photosensitive zone is related to the position of the particle in the photosensitive zone, it needs to be homogenized. Analysis of the illuminated area as a function of light intensity in the laser focal plane is important for determining the optical sampling rate of the laser particle counter.