摘要
在对远场涡流的机理解释上，国际上一直存在波与非波两种截然不同的观点．本文通过解析分析和电磁场有限元数值计算对远场涡流的相速基本特性进行了分析，发现尽管场量满足电磁扩散方程，但似稳态下场在空间某些位置上传播时具有似波现象．此外本文还对瞬态激励下的远场涡流似波特性作了进一步讨论．
There exist two different explanations about the remote field eddy current (RFEC) phenomena, i.e. wave-like opinion and non-wave opinion. The comparison of one-dimensional analytical solutions between the wave equation and diffusion equation is given, and the simulation results of two-dimension RFEC model by FEM reveal that there indeed exist wave-like phenomena especially phase velocity. Further more, the wave-like property of RFEC with the transient source has also been researched. The obtained results are very valuable in promoting the application of RFEC technique.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1997年第3期82-86,共5页
Acta Electronica Sinica
基金
国家自然科学基金
