Combined speed and depth sensor transducer

Details Combined speed and depth sensor transducer Combined speed and depth sensor transducer

G - Physics

01

S

G01S 15/02 (2006.01) G01B 21/18 (2006.01) G01S 7/52 (2006.01) G01S 7/521 (2006.01) G10K 11/00 (2006.01)

Patent

CA 2089402

COMBINED SPEED AND DEPTH SENSOR TRANSDUCER Abstract of the Disclosure A combined speed and depth transducer adapted to be mounted flush in the hull of a ship. An acoustic depth transducer is mounted piggyback on top of an acoustic speed transducer within a single housing. A base plate is sandwiched between the depth transducer and the speed transducer. The dimensions and frequency of transmission of the transducers are selected to prevent ringing in one transducer that may be caused by the acoustic wave of the other transducer. The base plate 40 is constructed to damp the acoustic wave transmitted by the speed transducer and be transparent to the acoustic wave transmitted by the depth transducer. Having the depth and speed transducers mounted within a common housing, and flush with the hull of the ship, provides the advantage of having to make only a single hole in the hull as well as having a low drag.

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