网格划分对ECT系统仿真数据的影响

Effect of Grid Division on Simulation Data of ECT System

电容层析成像系统中的先验数据是图像重建、传感器设计所需的重要数据,也是电容层析成像系统分析的关键。文章利用ANSYS软件对电容层析成像系统进行有限元求解,获取了满管、空管和中心流在网格发生变化的仿真电容值数据,并对仿真数据进行分析,为灵敏场计算及图像重建提供了一种更为准确的先验数据。

The prior data in electrical capacitance tomography system is important data for image reconstruction and sensor design. It is also the key to the analysis of electrical capacitance tomography system, With ANSYS, the author made finite element solution to the system and found the values of simulation capacitor for full pipe, blank pipe and central flow when the grid changes. Further more, the simulation data is analyzed, by which providing more accurate prior data for sensitive field computation and image reconstruction.