Magnetic source ground-tunnel transient electromagnetic advanced detection method
A transient electromagnetic method and advanced detection technology, which is applied in the field of advanced detection, can solve the problems of reduced resolution, poor coupling between electrodes and rock formations, and large grounding resistance, so as to improve the response signal strength, suppress interference, and achieve strong detection performance. Effect
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[0031] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings:
[0032] Such as figure 1 and figure 2 As shown, the magnetic source ground-roadway transient electromagnetic advanced detection method of the present invention utilizes a magnetic source transmitting device, a large loop coil and a receiving device connected with the magnetic source transmitting device, and is characterized in that it comprises steps:
[0033] Step 1: Select the roadway to be explored, fix the magnetic source transmitter on the roadway to be explored, determine the coordinates and size of the large loop coil emitted by the magnetic source according to the roadway to be explored, and lay the large loop coil on the corresponding surface above the roadway superior;
[0034] Step 2: Synchronize the magnetic source transmitting device and the receiving device with a quartz clock;
[0035] Step 3: If figure 2 As shown in , the receiving p...
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