Advanced Geophysical Operations and Services Inc. (AGCOS) software

The EM scanner Nemfis operates in frequency range 2.5 – 250kHz. It has transmitting coil and two receiving coils separated on distance r1 and r2 from the transmitting coil. The transmitting coil produces a signal at 14 different frequencies in mentioned above frequency range. The signal is measured by two receiving coils simultaneously. The cycle of the measurement on the site take 1.5 seconds.