Improved Sparse Representation Localization Method for Pipeline Weld Cracks With Bud-Shaped Electromagnetic Acoustic Transducer
Shear horizontal (SH) guided waves with nondispersive low-order modes are well suited for small crack detection in pipelines, playing a crucial role in maintaining pipeline safety. However, the curved structural characteristics of pipeline welds make traditional SH guided wave electromagnetic acoustic transducer (EMAT)...