Underwater Acoustic Waveguide Transducer for Deep Ocean Depths.
Patent, Filed 31 May 90, patented 1 Jan 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A deep submergence, acoustically stable directional transducer uses a waveguide and an encapsulant to channel sound. The waveguide forms an air space with a housing to that radiated sound is totally reflected at the air space interface. The encapsulant is matched to the acoustic impedance of the sea water at the intended operating depth to minimize reflection at the encapsulant-to-sea water interface.
- Acoustic Detection and Detectors