Acoustic transducer and underwater sounding apparatus

Details Acoustic transducer and underwater sounding apparatus Acoustic transducer and underwater sounding apparatus

2008-05-06

2008-05-06

Pihulic, Dan (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

Reexamination Certificate

active

07369461

ABSTRACT:
An acoustic transducer1has a first cylindrical portion1A and a second hemispherical portion1B on which a plurality of transducer elements10a, 10bare arranged. The transducer elements on the cylindrical portion are arranged to have six nearest neighbors. The arrangement may be such that the six transducer elements surrounding a given element describe the vertices of a regular hexagon. The hexagons thus described may be aligned so that two of their sides are parallel to the axis of the cylinder. The elements on the hemispherical portion may be arranged so that some elements have five nearest neighbors and others have six (the neighboring elements describing, for example, the vertices of hexagons and pentagons respectively). An underwater sounding apparatus may be constructed using the transducer.

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“Spherical Models,” Dover Publications, Inc., Magnus J. Wenninger, Mineola, New York, Nov. 1999, pp. 79-124.

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