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Interferometric phase velocity measurements

✍ Scribed by Kintner, P. M.; LaBelle, J.; Kelley, M. C.; Cahill, L. J.; Moore, T.; Arnoldy, R.


Book ID
119706832
Publisher
American Geophysical Union
Year
1984
Tongue
English
Weight
363 KB
Volume
11
Category
Article
ISSN
1944-8007

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LOCAL PHASE VELOCITY MEASUREMENTS IN PLA
✍ N.H. Clark; S. Thwaites πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 504 KB

A method for measuring local phase velocities in panels, in the range 5-50 kHz, in the presence of a strongly reverberant field, and within 10 cm of structural discontinuities such as ribs, is described. The method gives a resolution of 1-2% and a 2-3% reproduceability. Measurements of the phase vel