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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.
Aiming at the problem of inductive coupling in the application of frequency domain method, a method to suppress the inductive coupling strength is proposed. An approach to suppress the electromagnetic induction coupling from the signal transmitting end is proposed. The RC network model which is directly decoupled from the transmitting end is established The simulation results show that the RC network model has an obvious effect of restraining the inductive coupling generated at the output of the transmitter and can significantly suppress the inductive coupling caused by the transmitting loop in the receiving loop and can also be used for electrical prospecting and construction When the measurement device and its wiring to provide the basis for choice.