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中文摘要：
为了提高电阻层析成像有限兀计算精度，模拟相邻激励模式下敏感场内电流线的分布密度与分布形式，设计了一种新型拓扑结构的有限元模型。仿真与实际实验结果表明：相同实验条件下，新型拓扑结构的有限元模型与其他模型相比，提高了三角形有限元的质量，从而降低了有限元的形状误差，更有利丁场域中场矢量变化的甲稳过渡；降低了敏感场均匀分布时模型均方根值，提高了电阻层析成像止问题的计算精度；提高了对不同典型流型的反演效果。
英文摘要：
In order to improve the calculation accuracy of electrical resistance tomography system and simulate the distribution of current lines in the sensing field, a new topology structure finite element model was designed. Experimental results show that, under the same condition, comparing to the other models, it effectively improves the quality of triangle finite element which deduces shape error and is benefit to smooth transition of field vector. In addition, it also reduces root mean square and improves the accuracy of the forward problem in electrical resistance tomography, and hence, improves the performance of evolution of different typical flow regime.
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