Detection sensor for multiple parameters of underwater sound field

Abstract

The invention relates to a multi-parameter water sound detection sensor. The multi-parameter water sound detection sensor mainly comprises a vector hydrophone, a sound pressure hydrophone, a positioning mass block, a watertight covering layer, a multi-core cable and the like, and aims to overcome the defect that not all parameters of the sound field can be represented by a single hydrophone while improving detection efficiency. The multi-parameter water sound detection sensor has the advantages that firstly, physical quantities of scalar and vector can be measured simultaneously and physical quantities of sound pressure and particle vibration velocity which are used for representing characteristics of the sound field can be acquired synchronously since the vector sensor and the sound pressure sensor are designed to be combined; secondly, defects caused when the vector sensor and a scalar sensor run respectively are overcome, and a convenient, easy and feasible means is provided for sound intensity parameter detection; thirdly, complete information of the sound field can be provided with a single processing system, interference resistance capacity during water sound detection and water sound detection capacity are improved, and the characteristics of the underwater sound field can be judged more accurately.

Description

Technical field [0001] The patent of the present invention relates to a sensor capable of detecting various parameters of an underwater acoustic field, and specifically belongs to the field of acoustic sensors (or transducers). The main purpose is to fully integrate the advantages of the acoustic vector sensor and the sound pressure sensor, and can simultaneously measure various sound field parameters such as sound pressure, particle vibration velocity (or sound pressure gradient) and sound intensity (or energy flux density) in the sound field. Simultaneous measurement avoids the inconvenience of only measuring a single acoustic parameter in traditional acoustic measurement, improves the efficiency of detection, and is suitable for rapid detection of various acoustic parameters in underwater acoustic measurement. Background technique [0002] In the field of underwater acoustic detection, underwater acoustic sound pressure is one of the most basic physical quantities, and th...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the incomplete shortcoming of single scalar or vector hydrophone to sound field parameter representation, improve the efficiency of detection again simultaneously, propose a kind of scheme that scalar hydrophone and vector hydrophone are combined to design, It can detect the sound pressure, particle velocity and sound intensity in the sound field at the same time, and can efficiently obtain complete information characterizing the sound field parameters for the needs of conventional sound field parameter measurement and signal processing

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