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本文介绍一种采用三光束偏振型光路测量两相流系统,该光路清除了边缘效应,输出信号用计算机处理,由于采用了双阈值方法,有效地对两相流的速度进行测量。适当改进后,本系统可以同时测量两相流中不连续相(如粒子)的尺度和速度。一、测量原理和测量装置由于激光光束的光强为高斯分布,所以,向一直径的粒子从光束边缘通过时,其散射光强度比从光束中心通过时的弱,致使散射光强与粒子直径之间存在着不确定性。或有可能把
This paper presents a two-phase flow measurement system using a three-beam polarization-type optical path. This optical path eliminates edge effects and the output signal is processed by a computer. Due to the double threshold method, the velocity of the two-phase flow is effectively measured. Appropriate improvement, the system can simultaneously measure the two-phase flow of non-continuous phase (such as particles) of the scale and speed. First, the measurement principle and measurement device As the laser beam intensity Gaussian distribution, so to a diameter of particles from the edge of the beam, the scattered light intensity than the center of the beam through the weak, resulting in scattered light intensity and particle diameter There is uncertainty between. Or maybe it’s possible