DEVICE FOR DETECTING AND RECORDING HYDROACOUSTIC AND HYDRODYNAMIC EFFECTS Russian patent published in 2023 - IPC G01S15/88 

FIELD: hydroacoustics; hydrodynamics; seismology; gravity measurements.

SUBSTANCE: device for a system for detecting and registering hydroacoustic and hydrodynamic effects is proposed, consisting of a receiving module, in which a coil with an isotropic single-mode fiber wound around it is placed, two outputs of which are fed to a coupler (divider by 2, X type) located in the receiving module, an optoelectronic module consisting of a power source, a laser light source, a photodetector, a recorder, a converter and a calculator, characterized in that, in order to increase the sensitivity, one of the sides of the optical coil is covered with a material that absorbs the energy of elastic waves.

EFFECT: increased sensitivity.

1 cl, 7 dwg