Coating for an Underwater Active Acoustic Attenuation Control System
نویسندگان
چکیده
A multilayer encapsulated coating has been developed for underwater acoustic attenuation purposes. This coating provides an option for electronically activating encapsulated piezoelectric devices to increase the coatings passvie sound attenuation performance through active control methods. These methods include the ability to sense the incident and reflected acoustic pressure field and produce a counter destructive interference acoustic pressure wave for sound cancellation. Experimental results are presented from measurements conducted in a water filled pulse tube for normally incident acoustic waves.
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