GD-20 is a new multichannel electrical method system with an independent 5/12-channel design. It can simultaneously measure a maximum of 10 points with ERT, which greatly improves the efficiency of the field test. GD20 can be used for SP, apparent resistivity and IP tests. Compared with the single channel equipment, the average test efficiency of ERT is increased by 2-3 times, and the field construction period is shortened greatly.
GD-20 system is lightweight and comes with internal memory for data storage. The multichannel conversion box can be set to VES, ERT and N-∞. The VES can test 12 sets of sounding points simultaneously, the ERT test can meet the requirement of ERT 10-channel data acquisition, and the N-∞ position can meet the requirement of N connected to infinity array. The independent 10-channel design can improve the test efficiency to the greatest extent.
The GD-20 Series (multi-channel system, 3/5/12 channels) is divided into Senior, Advanced 2D/3D, Supreme 2D/3D, Supreme 2D+/3D+. The details of the model are as follows:
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