Boots – shoes – and leggings
Patent
1988-05-06
1990-08-07
Lall, Parshotam S.
Boots, shoes, and leggings
364550, 364508, 73602, 73606, 73607, G06F 1520, G01N 924
Patent
active
049473514
ABSTRACT:
An ultrasonic echo scanning apparatus having operator determined software controlled gated sampling of individual radio frequency excursions in the reflected ultrasonic energy waveform. Use of the system to obtain heretofore images of damage layers, resident in close physical proximity to large echo regions of a workpiece and images of good correlation with physical inspection of a disintegrated workpiece is also disclosed.
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"Characteristics of Impact Damage in Composites" by C. F. Buynak and T. J. Moran, SAMPE Journal, Mar./Apr. 1988, vol. 24, No. 2
Buynak Charles F.
Martin Richard W.
Moran Thomas J.
Hollins Gerald B.
Lall Parshotam S.
Ramirez Ellis B.
Singer Donald J.
The United States of America as represented by the Secretary of
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