海水中非稳态声散射测量气泡。

Measurements of bubbles in sea water by nonstationary sound scattering.

机构信息

V. I. Il'ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences, 43, Baltiyskaya Street, Vladivostok 690041, Russia.

出版信息

J Acoust Soc Am. 2011 Nov;130(5):3438-49. doi: 10.1121/1.3636371.

DOI:10.1121/1.3636371

PMID:22088018

Abstract

Methods for the characterization of bubbles in sea water by acoustic scattering are analyzed. Nonstationary linear and nonlinear sound scattering methods are proposed. The transient linear and nonlinear sound scattering allows the scattering by resonant gas bubbles to be distinguished from the scattering by other microinhomogeneities. The application of parametric arrays in oceanic experiments, together with the broadband frequency analysis of the backscattering coefficient, allows information about bubbles in sea water to be obtained. Experimental results on sound scattering and gas bubble distribution functions are presented for different conditions in the ocean.

摘要

分析了通过声散射对海水中气泡进行特征描述的方法。提出了非平稳线性和非线性声散射方法。瞬态线性和非线性声散射可区分共振气泡的散射与其他微不均匀性的散射。参量阵在海洋实验中的应用以及反向散射系数的宽带频率分析，使得可以获得有关海水中气泡的信息。给出了不同海洋条件下声散射和气体气泡分布函数的实验结果。