摘要
提出了一种基于力平衡负反馈系统的电化学微震检波器。通过力平衡负反馈系统与频率补偿电路相结合,使电化学微震检波器的工作带宽从7~20 Hz拓展至0. 1~50 Hz,灵敏度为3 227 V/m/s,为相同频率下动圈式地震检波器的161. 4倍,为资源勘探、桥梁、大坝以及其他建筑物的震动信号监测应用提供了技术基础。
An electrochemical seismic sensor based on force-balanced negative feedback is presented.The working bandwidth of the proposed device is extended from 7~20 Hz to 0.1~50 Hz,combined force-balanced negative feedback system with frequency compensation circuit.The quantified sensitivity of 3 227 V/(m/s),which is 161.4 times greater than the commercial moving-coil seismic sensor at the same frequency.The proposed electrochemical seismic sensor provides a technical basis for the field of resource exploration and vibration signals detection of the bridges,dams and other buildings.
作者
李光磊
王军波
陈连宏
陈健
陈德勇
LI Guanglei;WANG Junbo;CHEN Lianhong;CHEN Jian;CHEN Deyong(State Key Laboratory of Transducer Technology,Institute of Electronics,Chinese Academy of Sciences,Beijing100190,China;University of Chinese Academy of Sciences,Beijing100039,China)
出处
《传感器与微系统》
CSCD
2019年第7期89-91,共3页
Transducer and Microsystem Technologies
基金
国家重大科学仪器研制专项资助项目(2013YQ12035703)
国家“863”计划资助项目(2014AA0158)
国家重点研发计划资助项目(2016YFC0301801)
关键词
电化学
地震检波器
力平衡负反馈
工作频带
electrochemical
seismic sensor
force-balanced negative feedback
working bandwidth
