Patent ID: 6114855
Filing Date: 2000-09-05
Classification: G01V

Abstract:
An apparatus for prospecting for geological formations, comprisinga power source;a set of first feeding electrodes to be located in a circle at equal distances at a site on the studied medium;at least one second feeding electrode to be located in the centre of said circle, said second feeding electrode being coupled one of poles of said power source;a plurality of current generators, each having a first output, a second output and a clock input, the first outputs of the current generators being joined together and coupled to the other pole of said power source;a plurality of supply line radial lengths arranged along radii of said circle, each of said supply line radial lengths being coupled by one end thereof to the second output of a respective current generator, and by the other end to a respective feeding electrode of said set of first feeding electrodes;a plurality of field electric component meters, each having an input connected to a respective field electric component sensor, and an output connected to a respective unit for processing measurement results;a plurality of field magnetic component meters, each having an input connected to a respective field magnetic component sensor, and an output connected to a respective unit for processing measurement results;a plurality of the global radio navigation system receivers, each having a first output and second output, the first output of a first global radio navigation system receiver being coupled to interconnected clock inputs of said current generators, and the first output of the remaining global radio navigation system receivers being coupled to a respective electrical and magnetic component meter, and the second outputs of said global radio navigation system receivers are coupled to respective units for processing measurement results.