Reflectometry using longitudinal, shear and Rayleigh waves

被引:7
作者
Chen, WZ
Wu, JR [1 ]
机构
[1] Univ Vermont, Dept Phys, Burlington, VT 05405 USA
[2] Nanjing Univ, Inst Acoust, Nanjing 210093, Peoples R China
[3] Nanjing Univ, State Key Lab Modern Acoust, Nanjing 210093, Peoples R China
关键词
non-destructive evaluation; longitudinal waves; shear waves; Rayleigh waves; reflectometry;
D O I
10.1016/S0041-624X(00)00030-5
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A new technique of reflectometry using longitudinal, shear and Rayleigh waves is presented. Reflection coefficient as a function of angle incidence of an ultrasound beam with a finite beamwidth was measured for water-aluminum, water-brass, and water-glass interfaces. The measured values have matched very favorably with the results of numerical calculations based on the angular spectrum of waves method. It has been shown that the speeds of longitudinal, shear and Rayleigh waves of a solid can be determined very accurately by measuring a specularly reflected signal versus angle of incidence. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:909 / 913
页数:5
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