Folded shell projector (FSP)

Details Folded shell projector (FSP) Folded shell projector (FSP)

1997-09-17

1998-09-08

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367174, H01V 700

Patent

active

058055290

ABSTRACT:
An underwater acoustic projector comprising a pair of spaced apart end plates with an acoustic driver positioned between the end plates, the driver having smaller cross-sectional dimensions than the end plates. The end plate's edges are secured to an outer one-piece thin walled shell that provides a waterproof enclosure for the driver. That thin walled shell has a concavely inwardly bent surface between the end plates and a plurality of axially extending corrugations to provide a predetermined axial compliance and radial-to-axial transformation ratio.

REFERENCES:
patent: 4922470 (1990-05-01), McMahon
patent: 5030873 (1991-07-01), Owen
patent: 5136556 (1992-08-01), Obara
Frank R. Abbot "Compliant Housings to Enhance Low-Frequency Performance of Electrostrictive Transducers" Rept. NEL 574 US Navy Electronics Laboratory, San Diego, California 1955.
Dennis F. Jones, et al. "The Acoustic Perofrmance of a Class III Barrel-Stave Flextensional Projector", Proceeding of the 1996 Undersea Defence Technology Conference and Exhibition Nexus Media, Swanly, U.K. pp. 103-108.

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