【摘要】 提出了宽电极剖分模型 ,利用数值仿真计算方法 ,分析了宽电极剖分模型与线电极剖分模型的差异 ,研究了电极宽度的影响。仿真计算结果表明 ,电极宽度的引入导致正问题的差异 ,进而引起逆问题的差异 ,且随宽度增加差异增大。最后得出 ,采用宽电极剖分模型可以减小差异 ,提高计算精确度更多还原

【Abstract】 This paper put forward wide electrode model and analyzed the influence of the electrode width in electrical resistance tomography(ERT)system.By numeral stimulation study based on the comparison of wide electrode model and line electrode model,the diversity under the two models is obvious,which arises the discrepancy in the forward problem and further in the inverse problem.In the end,this paper deduced the adoption of wide electrode model can decrease the diversity and improve the calculating precision.更多还原