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Time-domain Induced Polarization Profile with Multiple-current Transmission
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface Geoscience 2014 - 20th European Meeting of Environmental and Engineering Geophysics, Sep 2014, Volume 2014, p.1 - 5
Abstract
We propose the method of calculating time-domain chargeability on multi current transmission using Code-Division Multiple-Access technique. The multi current transmission technique is proposed for highly efficient resistivity surveys aiming at lowering costs in large number of measurements or improving time resolution in monitoring applications for example. In the purpose of expanding multi current transmission technique to time-domain IP survey, we developed the method for calculating time-domain chargeability using measured potential data obtained by multi-transmission resistivity measurement. We conducted a simple numerical experiment and a field experiment of multi-transmission measurement for confirming our method. We showed it is possible to obtain time-domain chargeability from multi-transmission data. Currently, it is needed to be improved for adapting practical situation such like instability of current injection.