Folded shell projector (fsp)

G - Physics – 10 – K

Patent

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Details

G10K 9/00 (2006.01) G01S 7/524 (2006.01) G10K 9/12 (2006.01)

Patent

CA 2236370

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.

Projecteur acoustique immergé comprenant une paire de plaques d'extrémité espacées l'une de l'autre et un dispositif de commande acoustique entre les plaques d'extrémité, les dimensions transversales du dispositif de commande étant plus petites que les plaques d'extrémité. Les rebords des plaques d'extrémité sont fixés à une coque extérieure monobloc à paroi mince qui permet de constituer une enveloppe étanche pour le dispositif de commande. Cette enveloppe à paroi mince présente une courbure intérieure concave entre les plaques d'extrémité ainsi qu'une pluralité de gaufrages dans le plan axial qui assurent une souplesse axiale prédéterminée et un ratio de transformation radial-axial.

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