电容层析成像两相流流型可视化系统

Two-phase Flow Pattern Visualization System based on Electrical Capacitance Tomography Technique

本文基于电容层析成像技术研制了一套两相流型可视化系统。建立了一种新型的具有高速采集和高分辨率测量的电容数据采集系统。采用加权反投影算法进行图像重建以保证流型可视化的实时性和有效性。整套流型可视化系统经气液两相流现场应用测试和气固流化床实验室动态实验证明是有效的 ,成像速度达 2 0幅 /秒以上 ,满足工业应用要求。

Based on electrical capacitance tomography technique a novel two-phase flow pattern visualization system is developed.With a high data acquisition speed and high resolution of capacitance measurement,a new capacitance data acquisition system is developed.The weighted back projection algorithm is selected as the image reconstruction algorithm to satisfy the requirement of flow pattern visualization.Test results show that the design of the electrical capacitance tomography system is successful.The speed of image reconstruction is over 20 frames per se- cond.