基于MEMS的节点式旋转地震仪的研发及H/V谱比测试  

Development of a nodal rotational seismometer with a micro-electro-mechanical system sensor and testing of H/V spectral ratios

作　　者：贾松 何展翔 杨辉 幺永超 王彩霞[1] JIA Song;HE Zhan-Xiang;YANG Hui;YAO Yong-Chao;WANG Cai-Xia(School of Applied Science,Beijing Information Science&Technology University,Beijing 100192,China;Department of Earth and Space Science,Southern University of Science and Technology,Shenzhen 518055,China;Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology,Southern University of Science and Technology,Shenzhen 518055,China;Shenzhen Key Laboratory of Deep Offshore Oil and Gas Exploration Technology,Southern University of Science and Technology,Shenzhen 518055,China)

机构地区：[1]北京信息科技大学理学院,北京100192 [2]南方科技大学地球与空间科学系,广东深圳518055 [3]南方科技大学广东省地球物理高精度成像技术重点实验室,广东深圳518055 [4]南方科技大学深圳市深远海油气勘探技术重点实验室,广东深圳518055

出　　处：《物探与化探》2024年第6期1471-1478,共8页Geophysical and Geochemical Exploration

基　　金：国家自然科学基金项目“微地震监测复杂结构偏移成像与速度建模研究”(41974122);广东省地球物理高精度成像技术重点实验室项目(2022B1212010002);北京市教育委员会科研计划项目(KZ20231123250);深圳市科技计划项目“深海深地资源探测技术系统研发”(KQTD 20170810111725321);深圳市深远海油气勘探技术重点实验室项目(ZDSYS20190902093007855)。

摘　　要：针对当前日益增长的大规模野外地震采集需求,综合考虑仪器的功能性、经济性与部署便捷性,研发一种基于MEMS传感器的低成本多功能节点式旋转地震仪RBWL。仪器采用低成本、低功耗的MEMS传感器进行三分量平动(T_(x)、T_(y)、T_(z))以及三分量旋转(R_(x)、R_(y)、R_(z))进行地震信号采集。为降低环境因素对测量的影响,系统自动记录温度、姿态等实时信息,并对测量结果进行相应补偿校正。为实现采集节点的实时监控与数据传输,系统集成了基于4G—云端—客户端的数据传输链路,经实测最大数据传输速率可达100 Mbps。通过开展H/V谱比的实验,不仅验证了仪器系统功能与主要性能参数,而且证明了其在工程物探中的应用效果。In response to the increasing demand for large-scale field seismic acquisition,this study developed a low-cost multifunctional nodal rotational seismometer(RBWL)with a micro-electro-mechanical system(MEMS)sensor,considering the functionality,economic feasibility,and the ease of arrangement.The RBWL employs a low-cost and low-power MEMS sensor to acquire seismic signals,involving three-component translational motions(T_(x)、T_(y)、T_(z))and three-component rotational motions(R_(x)、R_(y)、R_(z)).To reduce the impacts of environmental factors on measurements,the system of the RBWL automatically records real-time information including temperature and attitude while performing compensation correction on the measurement results.For real-time monitoring and data transmission at acquisition nodes,the system establishes a data transmission link integrating 4G,cloud,and client,with the measured maximum data transmission rate up to 100 Mbps.The testing of H/V spectral ratios verifies the system functions and principal performance parameters of the RBWL and its effectiveness in engineering physical exploration.

关 键 词：MEMS 旋转地震仪 无线数据传输 H/V谱比 

分 类 号：P631[天文地球—地质矿产勘探]