Electromagnetic exploration device, Electromagnetic exploration method and Computer-Readable Medium recording program

摘要

The present invention is small in the underground loop coil to EM, the offset error easily and with high precision Electronic sensing devices that can process, and to methods for providing a program medium readable by a computer recorded, assuming the resistivity distribution in the ground and the model calculates the magnetic field strength in this basis, the calculated and the measured magnetic field strength, and by comparing the field strength, as the difference in a computer-readable medium storing a EM apparatus, method and program for continuously calculating the underground specific resistivity distribution in the calculation and updating of the resistivity distribution model until it converges to a predetermined amount or less, Based on the updated resistivity distribution to calculate the magnetic field strength of the linearized model in the vicinity of the initial value, the estimated offset amount based on the calculated magnetic field strength, magnetic field strength, and calculates the difference between the measured and updated prior to the resistivity of the magnetic field intensity distribution model to be the difference between the field strength and the offset amount of the resistivity distribution model updated with respect to the car provided with the inverse means for calculating the updated model of the resistivity distribution in the amount up to get the key features.