Width and depth gauging of rectangular subsurface defects based on all-optical laser-ultrasonic technology
Applied Acoustics（2022）
摘要
•An all-optical laser-ultrasonic system was developed.•Mode-converted Rayleigh waves from rectangular subsurface defects were detected.•A detection method for gauging rectangular subsurface defects was proposed.•Width and depth of rectangular subsurface defects were successfully gauged.
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关键词
All-optical laser-ultrasonic,Rayleigh wave,Ultrasonic wave,Rectangular subsurface defect,Width gauging,Depth gauging
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