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ABSTRACT
Getting a brand-new resistivity meters is quite expensive. Consequently, many institutions that need this equipment for teaching and research purposes cannot afford the price. This predicament compelled the authors to look for electronic components that are available in local markets and shops to fabricate this meter. This simple resistivity meter was then designed and constructed using components purchased locally. It measures current and voltage separately. The resistance is then computed from these readings. A comparison test was conducted with this meter using the ABEM Terameter SAS 300 as the standard meter. The field-testing exercise was conducted on an open field with a flat terrain. The results / data from the two instruments are very comparable; almost the same for a spread of AB/2 = 100m. beyond this spread the difference in readings is much. Hence, the use of this system is limited to shallow investigations where the target depth is not more than fifty meters (50m). Efforts are being made to improve on its performance.
