圆电极中的点电流源的反演研究

Inversion of Point Current Source in Circular Electrode

为使学生在学习中能更好地理解反演的概念,设计了本研究内容。采用互相关归一化的概率成像算法,首次给出圆形边界条件下的扫描函数,对圆电极中的点电流源进行了反演研究。利用同心圆电极实验仪,两个电极之间是电阻率分布均匀的导电微晶,对内电极进行了成像验证;对电阻率均匀分布的非同心圆电极模型的内电极,进行了成像模拟分析,证明本研究可行。用Matlab语言编程数据采集成像系统。本研究可适用于大学物理实验教学过程中。

In order to help students to better understand the concept of inversion,this research is designed.In this paper,by using the cross-correlation normalized probability imaging algorithm,the scanning function under the circular boundary condition is given for the first time,and the inversion of the point current source in the circular electrode is studied.By using the concentric circular electrode tester,there are conductive microcrystals with uniform resistivity distribution between the two electrodes,and the inner electrode is imaged and verified.The imaging simulation analysis of the inner electrode of the nonconcentric circular electrode model with uniform resistivity distribution shows that this study is feasible.The data acquisition imaging system is programmed with Matlab language.This research can be applied to the process of college physics experiment teaching.