Installation structure for miniature single-element fiber vector hydrophone water sound detection system

Abstract

The invention discloses an installation structure for a miniature single-element fiber vector hydrophone water sound detection system, and the structure comprises a photoelectric signal demodulation installation part and a single-element fiber vector hydrophone installation part. The photoelectric signal demodulation installation part comprises a pedestal, a pedestal cover plate, a signal installation plate, an installation plate support column, a light source, an electronic compass, a photoelectric signal demodulation board, and an 8-core watertight electrical connector. The single-element fiber vector hydrophone installation part comprises a fiber vector hydrophone, a fiber scalar hydrophone, a bottom plate, a supporting column, a suspension supporting column, a tension spring, a tensionspring pendant, a fiber scalar hydrophone fixing part, a fiber over-fiber sealing part, and a diversion cover. The structure is good in sealing and protection performance, can be resistant to high voltage, vibration and water impact, is stable in detection performance, and is suitable for the long-time stable and reliable operation of various types of single-element fiber vector hydrophone watersound detection systems under seawater.

Description

technical field [0001] The invention belongs to the technical field of underwater acoustic detection, and relates to an installation structure, in particular to an installation structure of a miniaturized single element optical fiber vector hydrophone underwater acoustic detection system. Background technique [0002] The vector hydrophone is an important sensor in the field of underwater acoustic detection. It can pick up the sound pressure and particle velocity vector at a point in the sound field synchronously at the same point in space. Using the acquired sound pressure and particle velocity, the sound source can be detected in the whole space without ambiguity. Directional, and within the limited sonar aperture, the vector hydrophone array can obtain better spatial gain and greatly improve the detection level of underwater acoustic targets. [0003] The vector hydrophone obtains the orientation information of the underwater acoustic signal relative to itself. Considerin...

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Problems solved by technology

[0004] In a sonar system with unlimited space, the vector hydrophone can be suspended symmetrically in a larger suspension frame by three pairs of elastic bodies orthogonal to each other, but the disadvantage is that the installation structure of the vector hydro

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