介质属性对SQUID探测的影响分析
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摘要
基于高精度的磁梯度张量探测原理和超导量子干涉器(SQUID)的高探测精度,就地下采空区介质属性对区域磁场信号的影响进行了分析研究。通过改变地下采空区的介质属性,利用仿真得到介质不同属性的采空区的区域磁场图,分析了不同介质采空区对周围磁场信号的影响,验证了井工采空区磁法探测的可行性。
Based on high precision detection principle of magnetic gradient tensor and superconducting quantum interference device(SQUID)of high detection precision,the impact of dielectric properties of underground goaf on the regional magnetic field signal are analyzed and studied. By changing the dielectric properties of underground goafs and using simulation to obtain the regional magnetic field map of the goafs with different media properties,the influence of different media goafs on the surrounding magnetic field signals is analyzed and the feasibility of magnetic field detection in the goafs of a well was verified.
Based on high precision detection principle of magnetic gradient tensor and superconducting quantum interference device(SQUID)of high detection precision,the impact of dielectric properties of underground goaf on the regional magnetic field signal are analyzed and studied. By changing the dielectric properties of underground goafs and using simulation to obtain the regional magnetic field map of the goafs with different media properties,the influence of different media goafs on the surrounding magnetic field signals is analyzed and the feasibility of magnetic field detection in the goafs of a well was verified.
引文
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[2]蔡定洪.浅析地球物探方法在煤田采空区的应用[J].企业技术开发,2015,34(16):72-73,95.
[3]王传雷,沈博,祁明松,等.对介质效应的认识过程及模型实验验证[J].工程地球物理学报,2005,2(1):12-17.
[4]孟慧.磁梯度张量正演、延拓、数据解释方法研究[D].长春:吉林大学,2012.
[5]徐熠.磁梯度张量异常反演算法与算例[D].北京:中国地质大学,2015.
[6]申茂冬.高温超导全张量磁梯度测量技术研究[D].长春:吉林大学,2017.
[7]刘天佑,高文利,冯杰,等.井中三分量磁测的梯度张量欧拉反褶积及应用[J].物探与化探,2013,37(4):633-639.
[8]吴招才,刘天佑.磁力梯度张量测量及应用[J].地质科技情报,2008,27(3):107-110.
[9]Schmidt P W,Clark D A.The magnetic gradient tensor:its properties and uses in source characterization[J].Leading Edge,2006,25(1):75-78.
[10]Foss C.Improvements in source resolution that can be expected from inversion of magnetic field tensor data[J].Leading Edge,2012,25(1):81-84.
[11]吕邦来,王传雷.磁测在港航工程勘察中的几个实例[J].工程地球物理学报,2004,1(6):494-498.
[12]喻忠鸿,王传雷,吴文贤,等.磁法探测炸弹有效深度的物理模拟试验及分析[J].工程地球物理学报,2007,4(2):118-122.