关键字：Multiphase flow; Computerized tomography; Image reconstruction algorithm

摘要：On the basis of analyzing ray and electronical tomographic system fundamental and its advantage and disadvantage, an electrical impedance tomography system used in flow pattern recognition of multiphase flow is introduced, and a new algorithm used in EIT image reconstruction is proposed. This algorithm will improve the convergence speed and the quality of the image reconstruction by using the method of mixed genetic algorithm and landweber iteration algorithm. The experimental results show that the EIT system is an effective system for multiphase flow measurement, the algorithm has the advantage of good convergence stability and rapid convergence rate.

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