To provide an equipment for automatic measurement of resistivity which enables quick investigation of resistivity distribution of the ground by a simple constitution.
Unit analog memories are so provided in the main body of equipment as to correspond respectively to a large number of potential detecting electrodes included in a potential detecting electrode group 130. In an analog memory 330 as a set of these unit analog memories, a potential represented by a reception signal in each potential detecting electrode of the group 130 is integrated by a capacitor and held. The signals held in each unit analog memory are outputted in a plurality of times separately at every 8ch and potential value corresponding to a transmission signal of a prescribed current is determined for all of the potential detecting electrodes and used for calculation of resistivity.
NIPPON CHIKAKU CHOSA KK
CHIBA DENSHI KENKYUSHO KK