NDT.net - June 2000, Vol. 5 No. 06

Experimental Enhancements of LLW Dispersion Data Acquisition and Implementation Challenges to NDE of Composites

Yoseph Bar-Cohen
Shyh-Shiuh Lih
Jet Propulsion Laboratory, Caltech, MS 82-105, 4800 Oak Grove Dr., Pasadena, CA 91109-8099
818-394-2610, fax 818-393-4057
Corresponding Author Contact:
Email: yosi@jpl.nasa.gov, Web: http://ndeaa.jpl.nasa.gov

TABLE OF CONTENTS


Abstract

Introduction

Leaky Lamp Wave Phenomenon

Rapid LLW Dispersion Data Acquisition

Optimal Adjustment of Transducers' Height

Dispersion Curve with Enhanced mode Identification

Issues Affecting the Transition of LLW to Practical Use

Conclusions

Acknowledgement

References

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