Three-dimensional torus-shaped vector hydrophone

Abstract

The invention provides a three-dimensional torus-shaped vector hydrophone, which comprises a neutral buoyancy torus, an elastic element, a hanger loop and a rigid strut, wherein the neutral buoyancy torus and the rigid strut are flexibly connected in a central fixation manner through the elastic element and the hanger loop. The invention breaks through limitation that the original resonant type vector hydrophone is spherical or columnar generally, underwater acoustic vector signals can be accurately obtained, and the three-dimensional torus-shaped vector hydrophone has the advantages of small dimension, high sensitivity and flexibility in use.

Description

technical field [0001] The invention relates to a vector hydrophone, in particular to a three-dimensional co-vibration vector hydrophone with a ring structure. Background technique [0002] Vector hydrophone technology began in the 1940s. After more than 70 years of development, various vector hydrophones have appeared, which are widely used in various fields of underwater acoustics. However, for the co-vibration vector hydrophone, although its internal sensitive elements or principles are various, the principle of sound reception remains the same, so the co-vibration vector hydrophone is basically only spherical or columnar structures. For example, Russia's low-noise measurement system CTAC-429 based on three-dimensional spherical vector hydrophones, and the US Navy uses two-dimensional cylindrical composite vector hydrophones as acoustic receivers in the DIFAR directional buoy system. [0003] In addition to the spherical and cylindrical shapes, the co-vibration vector h...

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