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强干扰环境下的磁场测量系统研究

发表时间:2017-12-29  浏览量:1921  下载量:365
全部作者: 孙勇,徐奡澍,张洋,蔡敏,林君
作者单位: 吉林大学仪器科学与电气工程学院
摘 要: 精确获取待测地点的地磁场是磁共振探水(magnetic resonance sounding,MRS)方法的关键,传统的磁测技术在强干扰环境下存在误差大及效率低的问题。为提高磁场测量的抗干扰能力和测量精度,研究提出一种将实时消噪电路与后级软件消噪相结合的抗干扰方法。详细介绍了具有抗干扰能力的硬件与软件系统设计,并在不同工作环境下分别与国产磁力仪和进口磁力仪进行实验测量对比。实验结果表明,本研究设计的测磁系统的性能明显优于国内传统的磁力仪,与国外先进磁力仪基本一致。最后针对测量系统的不足,提出一定的改进意见。
关 键 词: 勘探地球物理学;磁共振探水;磁力仪;测量系统;抗干扰
Title: Research on magnetic field measurement system in strong interference environment
Author: SUN Yong, XU Aoshu, ZHANG Yang, CAI Min, LIN Jun
Organization: College of Instrumentation & Electrical Engineering, Jilin University
Abstract: Traditional magnetic measurement technology has the disadvantage of large error, low efficiency and effectiveness under strong and complex context noises, so getting the precise geomagnetic field of the site to be measured is the key for magnetic resonance sounding (MRS). To improve the anti-interference ability and measurement precision of the magnetic field measurement system, this paper puts forward a novel method combining the real-time noise elimination circuit and post-level software de-noising. Hardware with anti-interference ability and software of the system are introduced in detail, and the system is tested under different working conditions by contrast of domestic and imported magnetometers. The experimental results show that the performance of the system designed in this paper is better than that of domestic traditional instrumentation, and consistent with the foreign advanced apparatus. Finally, the advantages and disadvantages are analyzed and some suggestions for improving the system are proposed.
Key words: exploration geophysics; magnetic resonance sounding; magnetometer; measuring system; anti-interference
发表期数: 2017年12月第24期
引用格式: 孙勇,徐奡澍,张洋,等. 强干扰环境下的磁场测量系统研究[J]. 中国科技论文在线精品论文,2017,10(24):2786-2793.
 
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