Non-stationary electrical resistivity sensor with contact resistance measurement
Colin Christy, Sarah Dyer · 2003
Four-electrode arrays are commonly used to measure electrical resistivity. They typically require a single measurement of current and voltage. This paper presents a modified method of using a four-electrode array that results in a measurement of both resistivity and contact resistance. The method requires an extra voltage and current measurement but yields information about the quality of the resistivity measurement. Implementation of the method is discussed and measurement examples are provided.