Wide bandwidth barrel stave projector

Details Wide bandwidth barrel stave projector Wide bandwidth barrel stave projector

1991-10-28

1992-08-04

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367158, 310337, H01V 700

Patent

active

051365561

ABSTRACT:
An underwater acoustical projector has its barrel staves located radially tward of a piezoelectric ceramic driver. The barrel staves are in an hour glass arrangement. The cross-sectional arrangement of the barrel staves is circular at both the top and bottom of the hour glass forming elliptical cross-sections of varying eccentricity between said top and bottom of said staves. The cross-section of greatest eccentricity is located midway between the top and bottom of said staves. The cross-section of greatest eccentricity is located midway between the top and bottom of the barrel staves. This forms a projector with a varying radius of curvature in each of the four 90.degree. quadrants around the axis of the projector. This yields large changes in the resonant frequency.

REFERENCES:
patent: 4922470 (1990-05-01), McMahon et al.
patent: 5030873 (1991-07-01), Owen

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