The sector is imposed around the homogeneous soil sample to measure an precise electrical resistivity of the sample. Some time variation and the real difference in electrical resistivity are under 0.five% when measured in a similar soil sample via the cells with unique distances between electrodes. The measurements in 4-electrode https://emotional-song11100.blogspothub.com/32489742/new-step-by-step-map-for-soil-resistivity-survey-bd