电阻层析成像均匀场域的建立方法

A New Method of Establish Uniform Area In Electrical Resistance Tomography

在圆形管道两相流电阻层析成像技术中,目前国内外广泛采用电流源激励,电压检测相邻数据采集模式,这种数据采集模式形成的场域分布是个非均匀场。在深入研究该模式特征的基础上,提出了一种建立均匀场的方法,通过有限元计算和仿真,取得了较令人满意的效果。采用均匀场域分布的圆形管道,可以为将来实现逆成像算法的线性化,把一个非线性的问题简化为一个线性问题来处理。

At present, the common model in electrical resistance tomography (ERT) is a constant current source power at two adjacent electrodes and voltage measured on other electrodes. In this paper, a new model is introduced. Comparing the two models, the new model presents many advantages. Result of the reconstruction figures is desirable by computer simulation.