摘要
针对频率域激电法应用中的感应耦合问题,分析了影响感应耦合强度的主要因素,提出了一种从信号发送端压制电磁感应耦合的方法,建立了从发送端直接去耦的RC网络模型并进行了仿真分析,计算结果表明,本RC网络模型对发送机输出端产生的感应耦合的抑制效果突出,可以大幅度压制发送回路在接收回路中引起的感应耦合,并可为电法勘探施工时测量装置及其布线方式的选择提供依据.
For the inductive coupling problem exists in the frequency-domain induced polarization application, the authors analyzed the key factors which influence the inductive coupling,and put forward a method to suppress the coupling which take advantage of the signal transmitters. A direct decoupling RC network model was built and has been simulated successfully. The simulation analysis results showed that： 1） Decoupling effect of the RC network model for the signal transmitters is rather well. 2） Such RC network model can also greatly suppress the reception circuit coupling. 3） When applying electrical prospecting method,it can provide a basis for the choice of the field measure equipment and wiring method.
出处
《地球物理学进展》
CSCD
北大核心
2016年第4期1569-1574,共6页
Progress in Geophysics
基金
国家自然科学基金(41164004)
广西隐伏金属矿产勘查重点实验室(15-140-27-K01)
湖南省自然科学基金(12JJ9008
14JJ6033
2016JJ5023)
湖南省高校科技创新团队支持计划项目联合资助
关键词
频率域激电
发送机
感应耦合
直接去耦
frequency domain IP
transmitter
inductive coupling
direct decoupling
