Expandable sonar array

Details Expandable sonar array Expandable sonar array

H - Electricity

04

R

H04R 1/44 (2006.01) G10K 11/00 (2006.01)

Patent

CA 2102220

An expandable sonar array structure (10) includes a central body (12) with a plurality of radially extendable hydrophone support arm assemblies (16) attached to said body and including a motor-driven drive member (20) to which all the arm assemblies are attached through pushrods (38, 40). Each arm assembly ( 16) includes three substantially vertically aligned; radially extending ,arms (22, 24, 26) carrying hydrophones (42) with top and bottom arms attached to the pushrods (38, 40) through short arms with pivots chosen sa that the arms move in opposite directions.

Structure (10) d'antenne-réseau dépliante de sonar, comportant un élément central (12) et un certain nombre de bras (16) se dépliant radialement et portant les hydrophones, ainsi qu'un mécanisme motorisé d'entraînement (20) auxquels sont reliés tous les bras, par l'intermédiaire de biellettes (38, 40). Chaque batterie de bras (16) comporte trois bras dépliants (22, 24, 26), situés pratiquement dans le même plan vertical, portant des hydrophones (42). Le bras du haut et celui du bas sont reliés aux biellettes (38, 40) par l'intermédiaire de petits basculeurs conçus de manière à ce que ces bras se déplacent dans des directions opposées.

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