Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

Acoustic microscopes operated with burst waves over 100MHz have been used for measuring leaky Rayleigh wave velocity, VR, within very localized region with the V(z) curve [1]. At these high frequency, the finer spatial resolution is obtained. However, at these frequency, the Rayleigh wave runs within very shallow subsurface, less than 30μm for common metals. This is a serious drawback to apply the V(z) approach for bulk materials, which are used commonly in engineering and industrial fields.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

15B

Chapter

Chapter 8: Systems, New Techniques and Process Control

Section

New Techniques

Pages

2039-2044

DOI

10.1007/978-1-4613-0383-1_267

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

A Digital Signal Processing for Measuring Leaky Surface Wave Velocity with C-Scan Acoustic Microscope

Seattle, WA

Acoustic microscopes operated with burst waves over 100MHz have been used for measuring leaky Rayleigh wave velocity, VR, within very localized region with the V(z) curve [1]. At these high frequency, the finer spatial resolution is obtained. However, at these frequency, the Rayleigh wave runs within very shallow subsurface, less than 30μm for common metals. This is a serious drawback to apply the V(z) approach for bulk materials, which are used commonly in engineering and industrial fields.