US 5,499,219 A · Electro-acoustical transducer arrangement

Abstract

An electro-acoustical transducer arrangement for underwater antennas comprised of a plurality of hydrophones (10) which are arranged at equal distances in a linear array, and are to be disposed vertically above each other on a support. For reasons of a simplified assembly along with good receiving properties, the hydrophones (10), together with a reflector (11) disposed behind them in the direction of incoming sound, are embedded in an acoustically transparent rigid cast enclosure (20) of an elastomer, preferably polyurethane, which can be worked in a casting process. The connecting lines (12) of the hydrophones (10) of the enclosure 20 are combined in a common plug (13), which is accessible on a front end of the rigid cast enclosure (20). The rigid cast enclosure (20) is provided with devices for fastening the enclosure to the support.

Claims20

Dependent claims

An electro-acoustical transducer arrangement for attachment to a support for an underwater antenna comprising:

a plurality of hydrophones arranged at equal distances in a linear array and provided with respective connecting lines for their electrical connection;
a reflector disposed behind said linear array of hydrophones in the direction of incoming sound;
a sole, acoustically transparent rigid cast enclosure formed of an elastomer which can be worked in a casting process, with said hydrophones and said reflector being entirely embedded to completely enclose said hydrophones and said reflector in said rigid cast enclosure;
a common plug in which said connecting lines of said hydrophones of said transducer arrangement are combined, with said plug having a plug axis extending in a direction of the linear array, said plug being accessible at a frontal end of said rigid cast enclosure;
and
means for fastening said rigid cast enclosure on the support, said means being provided in said rigid cast enclosure.

3 more elements

An underwater antenna comprising a plurality of transducer arrangements and a cylindrical support of fiberglass-reinforced plastic, each said transducer arrangement comprising:

a plurality of hydrophones arranged at equal distances in a linear array and provided with respective connecting lines for their electrical connection;
a reflector disposed behind said linear array of hydrophones in the direction of incoming sound;
a sole, acoustically transparent rigid cast enclosure formed of an elastomer which can be worked in a casting process, with said hydrophones and said reflector being entirely embedded to completely enclose said hydrophones and said reflector in said rigid cast enclosure;
a common plug in which said connecting lines of said hydrophones of said transducer arrangement are combined, with said plug having a plug axis extending in a direction of the linear array, said plug being accessible at a frontal end of said rigid cast enclosure;
and
means for fastening said rigid cast enclosure on the support, said means being provided in said rigid cast enclosure;
said plurality of transducer arrangements being fastened to the support such that said linear array of each said transducer arrangement extends in the axial direction of said support.

4 more elements

Dependencies are inferred from the claim text.

Electro-acoustical transducer arrangement

Life of this patent

Electro-acoustical transducer arrangement

Life of this patent

Abstract

Claims20