APPARATUS AND METHOD FOR ELECTRICALLY PROSPECTING THE SUBSOIL

摘要

The apparatus for the electric prospection of the subsoil comprises a plurality of electrodes (1) planted in the ground, each electrode being electrically connected to a measurement processor (2), all the measurement processors (2) being interconnected by means of a reference cable (204), each measurement processor (2) including a device (15) for measuring a potential difference and a switching device (13) responding to a control signal in order to connect the corresponding electrode (1A) to any of the injection wires (201), or to the measurement device (15) or to the reference cable (204) so that when the corresponding electrode (1A) is connected to an input (28) of the measurement device (15), the reference cable (204) provides to a second input (27) of the measurement device (15) the potential present at a remote electrode (1B) associated with a measurement processor (2), the switching device (13) being controlled in order to connect said remote electrode to the reference cable (204).