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公开(公告)号：EP1789312A1
公开(公告)日：2007-05-30
申请号：EP05756509.5
申请日：2005-06-15
发明人： BUSCH, Rainer , BRENNER, Axel
IPC分类号： B63G8/39
CPC分类号： B63G8/39
摘要： An electroacoustic underwater antenna, particularly a lateral antenna which can be fixed to the outer hull of an underwater craft, comprising a series of hydrophones (13) successively arranged in at least one elongate, closed, oil-filled cavity at a distance from each other. The aim of the invention is to achieve a high degree of reception sensitivity in the low frequency range with a sufficiently small, vertical aperture angle. The inventive device is easy to produce and mount and is characterized by several cavities (14) which are fitted with hydrophones (13) at a parallel distance from each other, arranged in front of a rigid plate (12) at a distance therefrom, and the plate (12) and cavities (14) are embedded in a panel-type, acoustically transparent plastic element (11). Several of said plastic elements (11) are arranged close to each other or behind each other. .
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22.发明公开
公开(公告)号：EP1774618A1
公开(公告)日：2007-04-18
申请号：EP05764034.4
申请日：2005-07-02
CPC分类号： H01Q1/04 , G01V1/201 , H01Q1/30 , Y10T29/49016
摘要： The invention relates to a method for production of an antenna section comprising a hydrophone (12) for a submarine antenna which may be composed of several antenna sections, whereby the hydrophones are arranged in a row one behind the other in a rectangular cavity (20) at a separation from each other on the inner wall of the cavity and the cavity is filled with a liquid gel (19) to fix the hydrophones, which thickens after introduction. According to the invention, the assembly procedure for the introduction and positioning of the hydrophones may be simplified whereby each hydrophone is inserted and fixed in the cavity with the longitudinal axis thereof essentially vertical, at a given separation from the previously inserted hydrophone, by means of a pipette (16). Liquid gel is then introduced into the cavity to such an amount that the liquid gel at least partly encloses the hydrophone held by the pipette. After the applied gel has thickened the pipette is withdrawn from the cavity for the insertion of another hydrophone, whereupon the method steps are repeated until the required number of hydrophones are inserted in the cavity.
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