G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 13/00 (2006.01) G01V 1/20 (2006.01) G01V 1/38 (2006.01) H04R 31/00 (2006.01)
Patent
CA 2212565
Methods for making linear acoustic antennas designed to be towed behind a boat, wherein open-cell foam cylinders (101) are opened lengthwise (103) and electroacoustic receiver modules (101) are placed therein. After closing the cylinders, they are arranged end-to-end and a series of layers of porous nonwoven material, reinforcing nets (111) and wiring cables are wound around the cylinder surfaces. Finally, a protective sheath is extruded onto the cylinders and their end portions are joined together. The manufacture of such antennas may thus be mechanised using cable technologies.
11 L'invention concerne les procédés qui permettent de réaliser des antennes linéaires acoustiques destinées à être remorquées derrière un bateau. Elle consiste à partir de cylindres de mousse à cellules ouvertes (101) que l'on ouvre longitudinalement (103) pour placer les modules électroacoustiques récepteurs (101). Après avoir refermé ces cylindres, on les met bout à bout et on bobine à leur surface une succession de couches de matériau non tissé poreux, de filets de renforcement (111) et de fils de câblage. On termine en extrudant la gaine de protection et en fixant les pièces d'extrémité. Elle permet de mécaniser la fabrication de ces antennes en utilisant des techniques câblières.
Bertheas Jean
Carpenter Allan Lloyd
Moresco Gilles
Rivoira Robert
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Thomson Marconi Sonar Pty Ltd.
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