A METHOD FOR MULTI-CHANNEL TRANSIENT ELECTROMAGNETIC SURVEY USING BROADSIDE CONFIGURATION

摘要

#$%^&*AU2020101906A420200924.pdf#####Abstract The application discloses a method for multi-channel transient electromagnetic broadside measurement, which relates to transient electromagnetic survey technology. The method includes: setting parallel transmitting lines and receiving lines, setting a number of transmitting points on the transmitting line, arranging two grounded transmitting electrodes on the first transmitting point, arranging a number of interconnected grounded receiving electrodes on the receiving line; injecting current into the ground through two grounded transmitting electrodes, receiving underground induction signals by each grounded receiving electrode, once the observation of this transmitting point is completed, the two grounded transmitting electrodes are transported to the next transmitting point, then return to the previous step until all transmitting points are observed. Finally, processing the signals from each observation to obtain the underground apparent resistivity section. Ireceiving array . .receiver receiver N beginning preceie R Rthe Id the22d Ar measuri 4line;U transmitter measunng fine Fig. 1 beginning point receive receiving arraeivr N g g- R R' thelt the2 d measuring line transmitter Fig. 2 receiving array receiver receiver N end point the It the 2ad measuring line transmitte Fig. 3 1