作者: Shujuan Wang , Lei Kang , Zhichao Li , Guofu Zhai , Long Zhang
DOI: 10.1007/978-3-642-15597-0_51
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摘要: A novel 3-D model for meander-line-coil surface wave electromagnetic acoustic transducers (EMATs) operating on the Lorentz principle is established by combining numerical calculations and analytical solutions. Simulation analysis find that waves generated force due to dynamic magnetic field more sensitive flaws, generates efficiently than static one when excitation current exceeds 528.9 A. The accuracy of verified experiment.