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Accuracy of Resonant Ultrasound Spectroscopy: An Experimental Study

Published

Author(s)

M C. Renken, Sudook A. Kim, K W. Hollman, C M. Fortunko

Abstract

We use Resonant Ultrasound Spectroscopy (RUS) to routinely determine elasticstifftness coefficents. To establish the uncertaintly of RUS, we determined the longitudinal wave velocity in a cylinder (25.6 mm x 25.4 mm diam.) of fused silica using three different ultrasonic, time-of-flight measurement geometries and four different signal-analysis techniques. We carried out these measurements form 1 MHz to 20 MHz with usable bandwidths of at least 80 % of the center frequency. Also, our short-pulse analyses accounted for diffraction, temperature differences, and pulse shape. From these measurements we determined the true velocity to be 5932.3 m/s {+ or-}0.13 % with 95 % cofidence interval. We used the RUS technique on the same specimen, operating from 60 kHz to 300 kHz. The RUS result is 5934.5 m/s, which differs from this true velocity by 0.04 %. Our study shows that the RUS technique has an accuracy that is at least comparable to our best laboratory time-of-flight methods.
Proceedings Title
Ultrasonics Symposium | | 1997 IEEE Ultrasonics Symposium | IEEE
Volume
1997
Issue
1
Conference Dates
October 1, 1997
Conference Location
Toronto, CA
Conference Title
IEEE Ultrasonics Symposium

Keywords

longitudinal, resonant, spectroscopy, ultrasound, velocity

Citation

Renken, M. , Kim, S. , Hollman, K. and Fortunko, C. (1997), Accuracy of Resonant Ultrasound Spectroscopy: An Experimental Study, Ultrasonics Symposium | | 1997 IEEE Ultrasonics Symposium | IEEE, Toronto, CA (Accessed June 24, 2024)

Issues

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Created October 1, 1997, Updated February 17, 2017