Abstract

There are a variety of noise sources which affect the accuracy of Induced Polarization data, such as cultural noise, varying self-potential, lightning strikes, telluric currents, EM coupling etc. In this paper we describe a new IP data collection system which collects full time series data rather than just a single averaged windowed decay. The recording of the full time series allows for greater flexibility in analysing the data to allow noise to be rejected or removed.This paper will outline the process used to collect the time series data, illustrate the many types of noise observed in the field and demonstrate the superiority of the resulting IP data.

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