一种新型潜浮式深海地震仪的设计与试验  

Design and test of a new mobile submersible deep-sea seismic recording system

作　　者：孟肯 秦华伟[1] 朱心科 侯斐 MENG Ken;QIN Huawei;ZHU Xinke;HOU Fei(Hangzhou Dianzi University,School of Mechanical Engineering,Hangzhou 310018,China;Second Institute of Oceanography,Ministry of Natural Resources,Key Laboratory of Submarine Science,Hangzhou 310012,China)

机构地区：[1]杭州电子科技大学机械工程学院,浙江杭州310018 [2]自然资源部第二海洋研究所,海底科学重点实验室,浙江杭州310012

出　　处：《热带海洋学报》2020年第3期49-56,共8页Journal of Tropical Oceanography

基　　金：国家重点研发计划(2017YFC0305802);“全球变化与海气相互作用”专项(GASI-02-SHB-15)。

摘　　要：鉴于国内外海洋地震台网的缺乏,本文介绍了一种面向全球海域应用的漂浮式海底地震接收系统(mobile earthquake recording in marine areas by independent divers,MERMAID).针对潜浮式地震仪MERMAID浮标的研发过程,建立了浮标的总体设计要求与典型工作循环流程,设计了液压式浮力调节系统、机械结构等,并对比分析了不同转速及负浮力下潜过程,最后进行了实验室压力检测和千岛湖湖试。试验结果表明,该浮标能在15MPa压力下保持良好的密封性与稳定性,利用水听器可以有效地采集到天然地震纵波(P波),同时计算各模块单个周期的能耗,以验证设计指标。In view of the lack of marine seismic network at home and abroad,a mobile earthquake recording system in marine areas by independent divers(MERMAID)is introduced for global sea-area application.According to the research and development process of the mobile seismic recording system,the general design requirements and typical work cycle process of the buoy are established;the hydraulic buoyancy regulating system and mechanical structure are designed;comparison and analysis of different speeds and negative buoyancy diving process are carried out;and the laboratory pressure test and Qiandao Lake test are realized.The test results show that the MERMAID buoy can keep good sealing and stability under 15 MPa pressure,and the P wave of natural earthquake can be effectively collected by hydrophone,and the energy consumption of each module in a single period can be calculated to verify the design indicators.

关 键 词：地震台网 潜浮式地震仪 MERMAID浮标 浮力调节 天然地震 

分 类 号：P716.83[天文地球—海洋科学]