便携式近地表频率域电磁法仪器研究现状与发展趋势

摘要

本文介绍了便携式近地表FDEM(频率域电磁法)仪器的应用需求、构成原理与特点、研究现状及新技术动态,强调了可靠性在实际应用中的重要性,对仪器研制过程中涉及的硬件、软件与结构三个部分的可靠性问题进行了深入探讨,并分别给出相应的解决措施.分别讨论了以不断进步的嵌入式技术、模拟技术、并行处理技术、无线通信技术及分布式设计技术等为代表的新技术对便携式近地表FDEM仪器性能指标的影响,明确了从集成度、功耗、精度、处理能力等方面提升便携式近地表FDEM仪器的整体性能是未来发展的方向,以期早日使得具有中国自主知识产权的便携式近地表FDEM仪器实现产业化,为新丝绸之路发展做出贡献.采用新设计理念,结合有效的新技术将提高近地表FDEM电磁勘探仪器的综合指标.可以预见,便携式近地表FDEM仪器功耗性能将会堪比现有智能手机功耗性能,勘探深度范围更广,分辨率更高,体积更小,更加便于携带和使用.%For the near-surface FDEM instrument,we review its principle,features,applications and the development trend,particularly the reliability of its applications.We discuss the reliability issue of this instrument in three aspects of the hardware,software,and structure,respectively.We illustrate the new technologies on near-surface FDEM instrument exhaustively,including the progressive embedded technology,simulation technology,parallel processing technology,wireless communication technology and distributed design technology.We point out the improvement of the integrated level,power consumption,precision and processing ability of the system,which represent future research directions of the instrument.With a novel design,the near-surface FDEM instruments by combining effective technologies can be further improved.We expect that this new instrument can observe deeper targets,and has higher resolution than earlier instruments.It will be portable and easy to operate due to its small size,with power consumption comparable to a smart-cell phone.