G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 15/02 (2006.01) B63B 49/00 (2006.01) G01K 11/16 (2006.01) G01S 7/521 (2006.01) G10K 11/00 (2006.01)
Patent
CA 2204469
An ultrasonic transducer assembly for generating and receiving ultrasonic vibrating forces comprises an ultrasonic transducer and a unitary housing for mounting to a marine vessel. The housing has a cavity formed therein for disposing the ultrasonic transducer. An acoustic window portion transmissive to the sonic vibrating forces is formed in the bottom of the housing. The ultrasonic transducer includes a transducer element having a cork layer on its sides and inner foam layer on its top surface. A potting material such as urethane encapsulates the ultrasonic transducer in the cavity. A portion of the potting material forms a potting layer between the bottom surface of the transducer element and the acoustic window portion of the housing. The ultrasonic transducer includes an electrostatic shielding enclosure which surrounds the top and sides of the transducer element and has an outer foam layer on its outer surface to impede and attenuate unwanted transmission of ultrasonic pressure waves toward the transducer element.
Airmar Technology Corporation
Swabey Ogilvy Renault
LandOfFree
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