Enhancement of laser-ultrasound/electromagnetic-acoustic transducer signals from Rayleigh wave interaction at surface features

• DOI: 10.1063/1.1571980
• Publication Date: 2003-05-08T22:38:07Z
• Authors: S. Boonsang; R. J. Dewhurst
• Keywords: Electromagnetic acoustic transducer; Rayleigh Wave; SIGNAL (programming language)

The enhancement of signals from Rayleigh wave interaction at solid surface features is described, for the case when arise laser-ultrasound/electromagnetic-acoustic transducer (EMAT) detection system. Transient acoustic waves were detected by an in-plane EMAT receiver. B-scan images slot or edge interactions revealed increased signal amplitude these a factor ∼1.59. An explanation based on sensor with wave.