A Digital Signal Processing for Measuring Leaky Surface Wave Velocity with C-Scan Acoustic Microscope
Date
Authors
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Research Projects
Organizational Units
Journal Issue
Is Version Of
Versions
Series
Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
Department
Abstract
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.