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海底沉积物声特性与海水深度变化关系的研究
引用本文:王琪,刘雁春,吴英姿,张林,李海森. 海底沉积物声特性与海水深度变化关系的研究[J]. 应用声学, 2008, 27(3): 217-221
作者姓名:王琪  刘雁春  吴英姿  张林  李海森
作者单位:1. 海军大连舰艇学院海测工程系,大连,116018
2. 哈尔滨工程大学水声技术国家重点实验室,哈尔滨,150001
基金项目:国防科技预研项目 , 哈尔滨国防科技水声重点实验室基金
摘    要:海底沉积物声特性的实验室测量结果,相对原位直接测量,将由于测量环境的改变而发生变化。其中海水深度(压强)的改变是影响海底沉积物声传播速度、声传播衰减系数的因素之一。文章以现有海底沉积物纵波传播速度理论为依据,分析了海水深度(压强)影响海底沉积物声传播速度、声传播衰减系数的原因;设计了海底沉积物声特性实验室仿真测量系统,并根据实验数据获得海水深度(压强)影响海底沉积物声传播速度、声传播衰减系数的变化规律。

关 键 词:海底沉积物  声学特性  水深影响
修稿时间:2007-06-12

Relation between the acoustic characters of sea bottom sediment and the seawater depth
WANG Qi,LIU Yan-Chun,WU Ying-Zi,ZHANG Lin and LI Hai-Sen. Relation between the acoustic characters of sea bottom sediment and the seawater depth[J]. Applied Acoustics(China), 2008, 27(3): 217-221
Authors:WANG Qi  LIU Yan-Chun  WU Ying-Zi  ZHANG Lin  LI Hai-Sen
Affiliation:1 Dalian Navy Academy,Dep.of Hydrography,Dlian 116018) (2 Harbin Engineering University,National Key Lab of Acoustic Technology,Harbin 150001)
Abstract:When the measuring environment change from in situ to the laboratory,the acoustic characters of the sea bottom sediment will vary.Among those factors of the environment,the sea water depth is one of the most important items which have influence on the sound wave’s propagating velocity and attenuation coefficient.In this article,the reasons for such influences are discussed.A method of measuring the acoustic characters of sea bottom sediment in laboratory and yet simulating the sea environment is designed and the variations of sound propagating velocity and attenuation coefficient with the sea water depth (pressure) are experimentally studied.
Keywords:Sea bottom sediment  Acoustic characters  Influence of sea water depth
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