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

被引：20

作者：

Boonsang, S ^{[1
]}

Dewhurst, RJ ^{[1
]}

机构：

[1] Univ Manchester, Inst Sci & Technol, Dept Instrumentat & Analyt Sci, Manchester M60 1QD, Lancs, England

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 19期

关键词：

D O I：

10.1063/1.1571980

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The enhancement of signals from Rayleigh wave interaction at solid surface features is described, for the case when signals arise from laser-ultrasound/electromagnetic-acoustic transducer (EMAT) detection system. Transient surface acoustic waves were detected by an in-plane EMAT receiver. B-scan images from surface slot or surface edge interactions revealed increased signal amplitude from these features of a factor similar to1.59. An explanation is based on the interaction of the EMAT sensor with the Rayleigh wave. (C) 2003 American Institute of Physics.

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页码：3348 / 3350

页数：3

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