Correction of Temperature Drift in Multifrequency Sounding Equipment Aemp-14

Abstract

As a result of experimental work, the linear nature of the temperature drift in the AEMP-14 equipment was established. The temperature coefficient of the resistivity readings depends on the measurement frequency, but does not depend on the signal level. A method for eliminating the temperature drift of the device is proposed. Temperature dependence introduces a deviation from true electrical conductivity within 1–12 % at 20 °C. This method minimizes the error in the measured values.