Title :
Recent advances in thin, low frequency acoustic projectors
Author :
Howarth, Thomas R. ; Tressler, James E.
Author_Institution :
Acoust. Div., Naval Res. Lab., Washington, DC, USA
Abstract :
The Naval Research Laboratory (NRL) is currently developing low frequency acoustic projectors for use in shallow water environments. Its thin profile is intended for placement onto autonomous underwater vehicles (AUVs) and unmanned underwater vehicles (UUVs). The projectors are designed with a piston mode resonant frequency below 1 kHz. The transmitting output is then followed by a secondary resonance frequency in the 50 kHz range such that the overall output can be used for broadband operation from 1 kHz to 60 kHz
Keywords :
remotely operated vehicles; underwater sound; underwater vehicles; 1 to 60 kHz; Navy; autonomous underwater vehicle; piston mode; resonant frequency; shallow water; thin low frequency acoustic projector; unmanned underwater vehicle; Acoustic devices; Fabrication; Frequency conversion; Laboratories; Pistons; Prototypes; Resonance; Resonant frequency; Underwater acoustics; Underwater vehicles;
Conference_Titel :
OCEANS 2000 MTS/IEEE Conference and Exhibition
Conference_Location :
Providence, RI
Print_ISBN :
0-7803-6551-8
DOI :
10.1109/OCEANS.2000.881813
