基于MATLAB的电容层析成像系统一种剖分方法的实现

A method of subdivision of electrical capacitance tomography based on MATLAB

电容层析成像是监测两相流动的一种新技术．它可重建两相流在其流经管道横截面上的相分布图像,而重建图像的先决条件是需获得成像系统的灵敏场分布．有限元仿真技术可以较为精确地获得在特定介质分布下的灵敏场分布,并且由于工作主要由计算机完成,数据的后期处理等都大为简化．有限元仿真技术的首要任务,是对场域进行合理的剖分．介绍了基于MATLAB的一种剖分方法的实现．在此剖分方法下,实现了电容层析成像系统的灵敏场分布的计算．

Capacitance tomography is a new technique for monitoring two-phase flow that can reconstruct croas-sectional phase distribution images of the pipeline through which the two-phase flow runs. Before the image reconstruction, the sensitivity distribution of the tomosraphy system must be defined, Simulation based Finite Element Method can be adopted to get the accurate sensitivity distribution on the condition of the given phase distribution while the upper data processing is simplified. The first task of FEM is the subdivision of the field, a methed of which is introduced herein based on MATLAB. Sensitivity distribution of the tomography system has been defined with the introduced method of subdivision.