Effective Earth Conductivity Measurements at the Wisconsin Test Facility During the Summer of 1973.
NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CONN NEW LONDON LAB
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From 15 July through 4 August 1973, the Naval Underwater Systems Center measured the effective earth conductivity beneath the four halves of the Wisconsin Test Facility WTF antennas. The HI induction method of conductivity measurements was used with each half-antenna alternately employed as the source, and some measurements were also obtained with the full-length N-S and E-W antennas as sources. The principal results are that 1 the minimum distance for determining the effective earth conductivity by the HI method is 7 effective earth skin depths, and 2 the method of measuring each half-antenna in order to predict the effective conductivity of the whole antenna is correct within a factor of 1.22. Author
- Geology, Geochemistry and Mineralogy