Laboratory testing method for sound scattering characteristics of oil spilling under ice based on sound-transparent floating body mold

Abstract

The invention provides a laboratory testing method for sound scattering characteristics of oil spilling under ice based on a sound-transparent floating body mold, and belongs to the field of under-ice oil spill disaster detection and underwater target sound scattering characteristic research. The laboratory testing method for sound scattering characteristics of oil spilling under ice based on the sound-transparent floating body mold is characterized by comprising the following steps: firstly, selecting a sound-transmitting and low-density material to construct a floating body mold, preparing a sea ice layer in the mold, inverting the floating body mold in a test water area, injecting oil from the lower part, and establishing a seawater-spilled oil-ice layer multi-layer medium; then designing a test water depth, and ensuring that the transmitted beam width is smaller than the multi-layer medium scale; and finally, carrying out a bottom-supported sound scattering characteristic test, and performing analyzing to obtain the sound scattering characteristic of the multilayer medium. The method has the beneficial effects that the floating body mold is constructed by utilizing the sound-transmitting and low-density material, and a seawater-spilled oil-ice layer multi-layer medium is prepared, so that the problem of uncontrollability of the ice layer and the oil layer in testing the high-frequency sound scattering characteristic of the under-ice spilled oil in a laboratory is solved, and the acoustic interference of the mold material is avoided.

Description

technical field [0001] The invention belongs to the field of oil spill disaster detection under ice and the research field of acoustic scattering characteristics of water targets, and relates to the research on the acoustic scattering characteristics of oil layers in seawater and the testing technology for the acoustic scattering characteristics of stratified liquids in water. Laboratory test method for high frequency acoustic scattering characteristics of underspill oil. Background technique [0002] On the shipping lanes near the polar regions, oil spills under the ice often exist in icy sea areas, causing serious environmental pollution risks to the ocean. However, when traditional satellite and radar monitoring technologies for marine oil spills are applied to the monitoring of subglacial oil spill disasters, it will be difficult to penetrate the sea ice layer. Therefore, it is urgent to develop new technologies for detecting subglacial oil spills. Due to the natural ad...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a multilayer medium of seawater-oil spill-ice layer and a method for testing the high-frequency sound scattering characteristics of this multilayer medium, so as to solve the problem of multilayer medium of seawater-oil spill-ice layer in the laboratory environment Acoustic scattering characteristic acquisition problem of

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