无限大均匀平板导体中的涡流场并矢格林函数

Dyadic Greens Function of Eddy Current Problem for Infinite Uniform Plate Conductor

推导了有限厚度无限大均匀平板导体中的涡流场并矢格林函数 ,它是求解涡流检测问题构造积分方程法的核心 .由于考虑了导体厚度 ,所得结果较以前无限厚导体的模型更接近于实际情况 .

The dyadic Greens function is needed when one of the most important methods, the integral equation method, is used to calculate the eddy current interaction with defects in conducting materials. The previous works dealt only with a conductor of infinite thickness, which limited the application of the method. This paper discusses the case with an infinite uniform plate conductor of finite thickness, and the corresponding dyadic Greens function is derived. The model developed is more close to the practical condition.