摘要
针对地球物理勘探中高精度磁场信号测量与靶目标大小方位检测难题,本文基于SQUID传感器研制了一种超导单通道磁力仪。首先,介绍了超导磁力仪工作原理,重点设计了其总体结构框架、控制单元、XYZ单元、无磁杜瓦瓶和供电模块;然后,提出了自适应滤波算法用于抑制运动磁场噪声干扰,静磁学逆向求解算法用于反演靶目标大小及方位;最后,采用半径0.2 m的圆铁球和边长5 m的地表立方空洞体进行检测实验,实验结果表明:本文超导磁力仪稳定可靠并满足地下勘探要求。
Aiming at the difficult problem of high-precision magnetic field signal measurement and target size and orientation detection in geophysical exploration,a superconducting single-channel magnetometer based on SQUID sensor is researched and fabricated.Firstly,the working principle of superconducting magnetometer is introduced,and its overall structure frame,control unit,XYZ unit,non-magnetic Dewar bottle and power supply module are mainly designed.Then an adaptive filtering algorithm is proposed to suppress the noise interference of the moving magnetic field,and the magnetostatic inverse solution algorithm is used to retrieve the size and orientation of the target.Finally,the detection experiment is performed with a round iron ball with a radius of 0.2 m and a surface cubic empty cavity with a side length of 5 m.The experimental results show that the superconducting magnetometer is stable and reliable and satisfies the requirements of underground exploration.
作者
艾海明
蔡大鹏
米旺
邓志安
AI Haiming;CAI Dapeng;MI Wang;DENG Zhi’an(Faculty of Science and Technology,Beijing Open University,Beijing 100081,China;Beijing Milestone Science&Technology Co Ltd,Beijing 100086,China;College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《传感器与微系统》
CSCD
北大核心
2024年第2期85-88,共4页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(61971155)
北京市教委科技项目(KM201951160001)。
关键词
超导量子干涉器
磁力仪
磁通量子
逆向求解
superconduction quantum interference device(SQUID)
magnetometer
flux quantum
inverse solution
