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瞬变电磁法常用来查明含水地质体,如岩溶洞穴导水通道、煤矿采空区、不规则水体等,具有自动消除主要噪声且地形影响较小、分辨能力强等优点。本文设计了基于FPGA控制的矿井高分辨率瞬变电磁探测系统,该系统具有采样频率高,动态范围大,工频抑制能力强等特点。
Transient electromagnetic method is often used to identify water-bearing geological bodies, such as karst cave aqueduct, coal mined-out area, irregular water bodies, etc., with the automatic elimination of major noise and less terrain, resolving power and so on. This paper designs a mine high resolution transient electromagnetic detection system based on FPGA control. The system has the characteristics of high sampling frequency, large dynamic range and strong suppression of power frequency.