Accession Number : ADD014791

Title :   Underwater Acoustic Waveguide Transducer for Deep Ocean Depths.

Descriptive Note : Patent, Filed 31 May 90, patented 1 Jan 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Henriquez, Theodore A

Report Date : 01 Jan 1991

Pagination or Media Count : 4

Abstract : 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.

Descriptors :   ACOUSTIC IMPEDANCE, ACOUSTIC WAVES, AIR, AIR SPACE, CHANNELS, DEEP DEPTH, DEEP OCEANS, DEEP SUBMERGENCE, DIRECTIONAL, ELECTROACOUSTIC TRANSDUCERS, ENCAPSULATION, INTERFACES, RADIATED NOISE, SEA WATER, SOUND, STABILITY, TRANSDUCERS, UNDERWATER ACOUSTICS, UNDERWATER SOUND EQUIPMENT, WAVEGUIDES

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE