THREE-COMPONENT VECTOR-SCALAR RECEIVER Russian patent published in 2019 - IPC G01V1/16 G01V1/38 

FIELD: hydro acoustics.

SUBSTANCE: invention relates to the field of hydroacoustics, specifically to vector-scalar receivers, and can be used as part of an antenna system placed on a small-sized mobile or rapidly deployable carrier (unmanned boat, unmanned submersible vehicles of various types, gliders, etc.) when conducting hydroacoustic studies, in particular to detect sources of underwater noise in the seas and oceans. Receiver consists of two identical cylindrical cases of pressure gradient receivers orthogonally oriented relative to each other, on the axis of which in the holes are installed one after another bending piezotransducers connected by internal cavities of complex section with the surface of the body in directions orthogonal to the axis of the body. Bending piezoelectric transducer in one of the outer holes of the second receiver is installed orthogonal to bending transducers of the first body, and its second hole is equipped with two bending piezoelectric transducers with an internal air gap between them, electrically connected in phase. Cases of receivers with the provision of a gap between them are rigidly attached along the ends to racks fastened with rings on both sides, one of which is equipped with a system for attaching to the design of the carrier.

EFFECT: increase in the spatial selectivity of the hydroacoustic antenna in the entire monitored region of space and an increase in the noise immunity of recording a useful signal under the conditions of vibration of the carrier body.

6 cl, 7 dwg