| 温度对海底沉积物声学特性影响实验研究 |
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| 引用本文： | 洪刚,吴百海,邹大鹏.温度对海底沉积物声学特性影响实验研究[J].热带海洋学报,2011(6). |
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| 作者姓名： | 洪刚 吴百海 邹大鹏 |
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| 作者单位： | 广东工业大学机电工程学院;中国科学院边缘海地质重点实验室中国科学院南海海洋研究所; |
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| 基金项目： | 中国科学院声场声信息国家重点实验室项目(SKLOA201003); 国家海洋局海底科学重点实验室开放研究课题基金(KLSG0906); 国家自然科学基金项目(40876018) |
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| 摘 要： | 温度的变化是影响海底沉积物声学特性非常重要的因素之一。文章采用同轴差距衰减测量法,在不同温度下对海底沉积物声学特性进行测量,实验得出南海海底沉积物随着温度的升高具有以下声学特性:1)沉积物声速变化比较缓慢,上下波动点较明显,但总体趋势接近线性下降;2)衰减幅值随着温度升高一直下降,偶尔有些波动的异常点,声衰减幅值呈现线性下降的趋势;3)声衰减系数变化呈现抛物线趋势,具有强非线性。对于此类沉积物声速特殊情况,还有待从理论和实验方面更深入地研究解释其成因。
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| 关 键 词： | 海底沉积物 声速 声衰减 温度 |
Experimental study on acoustic characteristics of seafloor sediment on effects of temperature |
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| HONG Gang,WU Bai-hai,ZOU Da-peng, .Faculty of Electromechanical Engineering,Guangdong University of Technology,Guangzhou ,China,.Key Laboratory of Marginal Sea Geology,South China Sea Institute of Oceanology,CAS,Guangzhou.Experimental study on acoustic characteristics of seafloor sediment on effects of temperature[J].Journal of Tropical Oceanography,2011(6). |
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| Authors: | HONG Gang WU Bai-hai ZOU Da-peng Faculty of Electromechanical Engineering Guangdong University of Technology Guangzhou China Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology CAS Guangzhou |
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| Institution: | HONG Gang1,WU Bai-hai1,ZOU Da-peng1,2 1.Faculty of Electromechanical Engineering,Guangdong University of Technology,Guangzhou 510090,China,2.Key Laboratory of Marginal Sea Geology,South China Sea Institute of Oceanology,CAS,Guangzhou 510301 |
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| Abstract: | Temperature changes which affects the acoustic characteristics of marine sediment is a very important factor.The coaxial differential distance attenuation measurement method is applied on measuring the seafloor sediment acoustic characteristics at different temperatures in this article.As the temperature increasing,some conclusions of acoustic characteristics of marine sediment could be draw: 1) sediment sound velocity changes slowly with obvious fluctuation,but the overall trend of decline is nearly in lin... |
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| Keywords: | seafloor sediment acoustic velocity acoustic attenuation temperature |
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