会议专题

Sensing Property Modeling for the Novel Electromagnetic Underground Displacement Sensor

  Due to invisibility and complexity of the underground displacement monitoring, there exit few practical monitoring sensors capable of monitoring the underground horizontal and vertical displacements simultaneously.A novel electromagnetic underground displacement sensor able to monitor both the horizontal and the vertical displacements was proposed in our previous studies and abbreviated as the H-V type sensor.Through comprehensive application of Hall sensing mechanism analysis, 3D magnetic field distribution solution to the permanent magnet, and multidimensional numerical integration method, a model called the Equivalent Magnetic Charge-Numerical Integration Model (EMC-NI) is presented in this paper and serves as the H-V type sensors Hall voltage measurement model.This model can quantitatively evaluate the complicated relationship among the sensors Hall voltage output, its measuring parameters (underground horizontal displacement, vertical displacement and tilt angle at different depth within the monitored soil rock mass) and morphological parameters (geometry, shape and property parameters for the sensor units).Comprehensive studies and comparisons have conducted between the experimentally measured and EMC-NI modeled Hall voltage under counterpart conditions, through which not only the models modeling effectiveness and calculation accuracy are objectively evaluated, but also some valuable theoretical support is provided for the sensor sensing properties evaluation, design optimization, and subsequent study of displacement parameter inversion approach.

theoretical modeling Hall effect horizontal displacement vertical displacement permanent magnet underground displacement sensor

N.Y.Shentu Q.Li

College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou 310018,China

国际会议

The 5th International Forum on Opto-electronic Sensor-based Monitoring in Geo-engineering (5th OSMG-2014)(第五届地质(岩土)工程光电传感监测国际论坛

南京

英文

377-385

2014-10-12(万方平台首次上网日期,不代表论文的发表时间)