Title :
Bounded beam transmission across a water/sand interface, experiment and theory
Author :
Williams, K.L. ; Satkowiak, L.J.
Author_Institution :
US Naval Coastal Syst. Center, Panama City, FL, USA
fDate :
31 Oct-2 Nov 1988
Abstract :
Measurements were made to investigate the effect of a water/sediment interface on a propagated acoustic signal. Under near-laboratory conditions, data were collected for mapping the sound-pressure field in a homogeneous sand sediment for a 20-kHz linear source at grazing angles that ranged from well above to well below the critical angle for the sediment. In-sediment pressure field contour plots are compared with theoretical predictions calculated using the SAFARI model
Keywords :
radiation pressure; sand; seawater; sediments; ultrasonic transmission; underwater sound; 20 kHz; SAFARI model; bounded beam transmission; contour plots; grazing angles; sound-pressure field; water/sand interface; Acoustic beams; Acoustic measurements; Acoustic propagation; Acoustic transducers; Laboratories; Phased arrays; Predictive models; Sediments; Solids; Sonar equipment; Underwater acoustics;
Conference_Titel :
OCEANS '88. A Partnership of Marine Interests. Proceedings
Conference_Location :
Baltimore, MD
DOI :
10.1109/OCEANS.1988.23539
