HYDROPHONE MODULE OF A FLEXIBLE EXTENDED ANTENNA AND THE MODE TO FILL IT WITH LIQUID FILL Russian patent published in 2008 - IPC G01V1/38 

FIELD: invention refers to geophysics and hydro-acoustics and may be used for measuring of an acoustic field in the water.

SUBSTANCE: hydrophone module has a flexible hose with hydrophones and insulating elements on the end-butts, the insulating elements are fulfilled in the shape of solid discs out of electro-insulating material with resin discs vulcanized from one side. Moreover the diameter of the discs is equal to the inner diameter of the hose, in the discs near the edge there is an opening filled with vulcanized resin and the insulating elements are fastened with the hose along the lateral cylindrical surface of the resin discs with the aid of glue. The liquid fill is forced inside the hose through the needles of a syringe with the aid of which the openings of the insulating elements filled with resin are pierced. Filling is conducted at vertically-inclined position of the hose through the lower needle and the ousted air at that goes out through the upper needle and when the liquid begins come out the needle is taken away. The liquid is forced under the pressure till achieving the necessary diameter of the hose.

EFFECT: ensures reliable insulation of the hydrophone module at increased pressure and prolonged operation in the sea.

3 cl, 3 dwg