Effective Earth Conductivity Measurements at the Wisconsin Test Facility During the Summer of 1973.
Abstract
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 H/I 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 H/I 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 06, 1974
- Accession Number
- AD0779288
Entities
People
- Grayson R. Canfield
- Peter R. Bannister
Organizations
- Naval Underwater Systems Center