基于力平衡负反馈的电化学地震检波器
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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.
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.
引文
[1]HAVSKOV J,ALGUACIL G.Instrumentation in earthquake seismology[M].Dordrecht,The Netherlands:Springer,2010:1-5.
[2]ZHANG G,HU S.Dynamic characteristics of moving-coil geophone with large damping[J].Int’l J Appl Electrom,2010,33(1):565-571.
[3]谌贵辉,赵万明,任诚,等.新型MEMS地震检波器的研究[J].传感器与微系统,2010,29(8):29-30.
[4]HAVSKOV J,ALGUACIL G.Instrumentation in earthquake seismology[M].New York:Springer-Verlag,2005:10-15.
[5]HURD R,JORDAN W Jr.The principles of the solion[J].J Platinum Met Rev,1960,4(2):42-47.
[6]DENG T,CHEN D Y.A MEMS-based electrochemical vibration sensor for seismic motion monitoring[J].Journal of Micro-electromechanical Systems,2014,23(1):92-99.
[7]HE W.Low frequency electrochemical accelerometer with lownoise based on MEMS[J].Key Eng Mater,2012,503:75-80.
[8]CHEN D Y.A microelectrochemical seismic sensor based on MEMStechnologies[J].Sen and Act A:Physical,2013,202(202):85-89.
[2]ZHANG G,HU S.Dynamic characteristics of moving-coil geophone with large damping[J].Int’l J Appl Electrom,2010,33(1):565-571.
[3]谌贵辉,赵万明,任诚,等.新型MEMS地震检波器的研究[J].传感器与微系统,2010,29(8):29-30.
[4]HAVSKOV J,ALGUACIL G.Instrumentation in earthquake seismology[M].New York:Springer-Verlag,2005:10-15.
[5]HURD R,JORDAN W Jr.The principles of the solion[J].J Platinum Met Rev,1960,4(2):42-47.
[6]DENG T,CHEN D Y.A MEMS-based electrochemical vibration sensor for seismic motion monitoring[J].Journal of Micro-electromechanical Systems,2014,23(1):92-99.
[7]HE W.Low frequency electrochemical accelerometer with lownoise based on MEMS[J].Key Eng Mater,2012,503:75-80.
[8]CHEN D Y.A microelectrochemical seismic sensor based on MEMStechnologies[J].Sen and Act A:Physical,2013,202(202):85-89.