多频海底声学原位测试系统研制和试用

陶春辉; 金肖兵; 金翔龙; 周建平; 张金辉; 顾春华; 何拥华; WILKENSRH; FUShung-sheng

多频海底声学原位测试系统研制和试用

1.
浙江大学, 理学院, 浙江, 杭州, 310027;国家海洋局, 第二海洋研究所, 浙江, 杭州, 310012
2.
国家海洋局, 第二海洋研究所, 浙江, 杭州, 310012
3.
夏威夷大学, 海洋地球科学技术学院, 夏威夷, 火奴鲁鲁, 96822

基金项目: 国家“863”计划资助项目(2002AA615130);国家自然科学基金资助项目(NSFC49906004);国家海洋局重点青年基金资助项目(20005002);浙江省151工程资助项目

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出版历程
- 收稿日期: 2005-07-15
- 修回日期: 2005-07-22

Development of multi-frequency in-situ marine sediment geoacoustic measuring system

1.
Natural Science Collage, Zhejiang University, Hangzhou 310027, China;Second Institute of Oceanography, State(Oceanic) Administration, Hangzhou 310012, China
2.
Second Institute of Oceanography, State(Oceanic) Administration, Hangzhou 310012, China
3.
School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu 96822, USA

摘要

摘要: 海底沉积物的声学特性(最重要的是声速和声衰减)以及它们与物理(包括土力学)特性之间的关系是沉积物声学中两个重要的研究项目.介绍了新研制的实时监控多频海底声学原位测试系统.该系统可测量浅表层沉积物的声速.探测频率为8,10,12,15 kHz,可根据实际情况选择发射波形、接收增益和采样长度,采样率为0.5~2.0 MHz,工作水深为300 m.系统具有倾斜传感器、8通道扩充等功能.用该系统在杭州湾测得了四种频率的沉积物原位声速.
- 海底沉积物 /
- 声学原位测试 /
- 声速
Abstract: The marine sediment acoustic characteristics (such as so und speed and attenuation) as well as their relationship with physical characteristics (including soil mechanics) are two important research topics in marine sediment acoustics.A new developed real-time monitoring multi-frequency in situ sediment geoacoustic measuring sysem was introduced.The geoacoustic measuring system is designed for sound speed measurements of the seabed measuring.The measuring frequencies are 8,10,12 and 15 kHz.A transmitting waveforms,receiving gain and sampling length could be changed according to sediments.A sampling rate is designed from 500 kHz to 2 MHz,and an operating depth is 300 m.The geoacoustic measuring system has a tilt sensor and eight channels expansion.A set of in situ sound speeds of four different frequencies is observed in the Hangzhou Bay.
- marine sediment /
- in-situ measurement /
- sound speed

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参考文献(11)

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文章访问数: 863
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