Underwater signaling device
Underwater sound attenuator
Underwater sound generator
Underwater sound projector and underwater sound projection...
Underwater sound projector and underwater sound projection...
Underwater sound source
Underwater sound source with remote controlled actuator
Underwater sound source with timed actuator
Underwater surveillance system
Underwater target testing
Underwater transducer
Underwater transducer
Underwater transducer with depth compensation
Underwater vehicle sonar system with extendible array
Unidirectional wave transducer
Variable multi-stage arc discharge acoustic pulse source transdu
Variable reluctance acoustic projector
Variable reluctance actuated flextension transducer
Velocity hydrophone
Vented-pipe projector