CONDUCTIVITY MEASUREMENTS IN DISSIPATIVE MEDIA WITH ELECTRICALLY SHORT PROBES.
Scientific rept. no. 6,
RAYTHEON CO NORWOOD MASS
Pagination or Media Count:
In a dissipative medium, the input conductance of either a bare or an insulated short-circuited dipole is simply related to the conductivity of the medium, provided the electrical length of the dipole is short. Model measurements have been made in salt solution of water to demonstrate the feasibility of deducing conductivity of the solution by using both types of antennas as probes. The technique has been utilized to evaluate the electrical conductivity of rock media in deep drill holes. Since rock media are rarely uniform in their electrical characteristics, the deduced conductivity will be a gross average conductivity of that volume of the rock approximately within the antenna region of the probe. Author