Undersea sediment acoustic parameter in-situ measuring system

Abstract

The invention relates to an acoustic measuring system, in particular to an undersea sediment acoustic parameter in-situ measuring system. The system comprises an overwater part and an undersea part which are connected through a cable, wherein the overwater control part comprises a global positioning system (GPS) module, a power supply and a cable data transmission interface; the undersea part comprises a cable data transmission interface, an acoustic wave transmission exciting circuit, an acoustic wave transmitting energy converter probe, an acoustic wave receiving energy converter probe and an acoustic wave waveform data acquisition circuit; the overwater part is connected with an industrial personal computer through a universal serial bus (USB) interface; and the cable data transmission interface modulates a control command transmitted by the industrial personal computer and transmits the modulated control command to the undersea part, and demodulates data uploaded by the undersea part and transmits the demodulated data to the industrial personal computer for processing and recording. The system can perform station measurement and continuous dragging measurement; the acquired measured data is closest to a true value; and the system has a simple structure, high stability and higher measuring efficiency, and is flexible in operation and convenient to operate.

Description

technical field [0001] The invention relates to an acoustic measurement system, in particular to an in-situ measurement system for acoustic parameters of seabed bottom. Background technique [0002] The acoustic characteristics of the seabed have an important impact on the acoustic field of the marine environment, and are indispensable for the research of mine submarine detection and underwater communication. In my country, we mainly rely on geological sampling in some sea areas (mainly in the South China Sea) to measure and analyze the acoustic parameters of the samples. These studies are far from meeting the needs of military ocean acoustics. The main reasons are: first, there are few sampling sites and no representative The second is that the geological sampling is relatively deep, and the measured acoustic parameters are the vertical average acoustic parameters, while the military needs generally the average acoustic parameters of the horizontal surface sediments; the thi...

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Problems solved by technology

[0003] Aiming at the shortcomings of few sampling points, low measurement efficiency and inaccurate measurement data in the prior art, the technical problem to be solved by the present invention is to provide a kind of acoustic parameters of seabed bottom that can be randomly sampled, have high measurement efficiency and accurate measurement data. In situ measurement system

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