The Applied Physics Laboratory of the University of Washington has developed a small imaging sonar that allows a diver of remotely operated vehicle (ROV) operator to visualize small objects despite zero visibility conditions. The sonar is called limpet mine imaging sonar (LIMIS) for its primary function is to search for and identify limpet mines attached to the hulls of ships. LIMIS uses acoustic lenses combined with a 64-element piezoelectric transducer (PZT) array to form the 64 narrow beams. LIMIS uses rectangular lenses that map a line on the object plane to a line in the image plane.
Hand-held sonar displays near photographic images
Sea Technology ; 39 , 12
1998
Seiten
Aufsatz (Zeitschrift)
Englisch
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