DEEP WATER HYDROPHONE Russian patent published in 2019 - IPC G01V1/16 G01V1/18 G01V1/38 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment, in particular to direct measurement of parameters of compression and rarefaction waves propagating in liquid and gaseous medium, which can be characterized by high static pressure in medium with respect to normal conditions. Invention can be used in such fields as shelf seismic prospecting of minerals, construction of underwater communications and laying of pipelines, can be used for research, field and navigation needs in conditions of deep sea. Disclosed is a hydrophone designed to measure variations of pressure in an acoustic wave against a background of external static pressure, consisting of a housing and a converter, which is a chamber filled with electrolyte and divided into two parts by an electrode cell. Chamber shell comprises two membranes located on different sides of the converting element. Said transducer is arranged so that one of said membranes is in contact with the medium in which acoustic waves propagate, and the other membrane is in contact with easily compressible fluid that fills the hydrophone housing.

EFFECT: technical result is high sensitivity of device, low level of intrinsic noise, especially in low-frequency region.

4 cl, 8 dwg