کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
294940 511504 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tuned double-coil EMATs for omnidirectional symmetric mode lamb wave generation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Tuned double-coil EMATs for omnidirectional symmetric mode lamb wave generation
چکیده انگلیسی

This paper investigates a method to generate only symmetric omnidirectional Lamb waves and proposes specially-tuned double-coil EMATs. While methods to generate omnidirectional Lamb waves have been reported, the symmetric mode is typically accompanied by unwanted antisymmetric modes. The double spiral coil works as a wavelength filter but the relation between the coil geometries and the wavelength of the symmetric mode that minimizes the unwanted antisymmetric mode has not been established. Axisymmetric analysis was performed to find the relation. Excellent rejection of antisymmetric modes with successful symmetric mode generation was confirmed by experimental results that favorably agree with the theoretical results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 83, October 2016, Pages 38–47
نویسندگان
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