基于光电池阵列的小通道气液两相流气泡参数检测方法

发布时间：2018-07-03 09:16

本文选题：光电池阵列 + 小通道　；参考：《中南大学学报(自然科学版)》2016年03期

【摘要】：提出一种基于光电池阵列的小通道气液两相流气泡尺寸(气泡截面直径及其截面中心点位置)检测新方法。该方法先利用光电池阵列传感器获得反映小通道内气液两相流气泡截面信息的光强分布信号,然后利用主成分分析对信号降维,最后利用支持向量机(SVM)方法分别建立气泡截面直径和气泡截面中心点位置的测量模型,并进而实现气泡截面直径及其截面中心点位置2个参数的测量。在内径为4.04 mm的水平玻璃管内进行的初步实验研究结果表明本文所提出的基于光电池阵列的小通道气液两相流气泡尺寸检测方法是可行的、有效的。气泡截面中心点位置测量的最大相对误差小于8%,气泡中部截面直径测量的最大相对误差小于10%。
[Abstract]:A new method based on photocell array is proposed to detect the bubble size of gas-liquid two-phase flow in a small channel (the diameter of the bubble section and the position of the center point of the bubble section). In this method, the light intensity distribution signal of gas-liquid two-phase flow bubble cross section in small channel is obtained by using photocell array sensor, and then the dimension of the signal is reduced by principal component analysis (PCA). Finally, support vector machine (SVM) method is used to establish the measurement model of bubble section diameter and bubble section center position, and then realize the measurement of bubble section diameter and the center point position of bubble section. The preliminary experimental results in a horizontal glass tube with an inner diameter of 4.04 mm show that the small channel gas-liquid two-phase flow bubble size detection method proposed in this paper based on photocell array is feasible and effective. The maximum relative error of the central point of bubble section is less than 8 and the maximum relative error of the diameter of the central section of bubble is less than 10.
【作者单位】：浙江大学控制科学与工程学院工业控制技术国家重点实验室;
【基金】：国家自然科学基金资助项目(61573312)~~
【分类号】：TM914;O359

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