Parametric Modeling of the Current Induced in Linear Conductors

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Authors
  1. Sooriyadevan, p.
  2. Tunaley, J.
  3. Irvine, S. E.
Corporate Authors
Defence Research and Development Canada, Suffield Research Centre, Ralston AB (CAN)
Abstract
This report presents computational results of the amplitude of the induced current in a linear conductor and the variation of the amplitude under different external excitation and electromagnetic conditions. For location and avoidance of buried utility cables, the ability to detect linear conductors with a high degree of confidence is important. The report begins with a brief survey of modeling of current induction in conductors and a description of the geometry of the problem, followed by a parametric model analysis using a commercially-available Method-of-Moments solver. The variables addressed in this work are frequency of excitation (50 kHz to 50 MHz), excitation source (plane-wave or dipole), and conductor radius, as well as the conductivity and permittivity of the surrounding soil. The findings herein, as well as those of follow-on studies, will assist in the understanding of electromagnetic scattering from linear conductors and aid in the optimization of devices used to locate them.

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Keywords
wire scattering;electromagnetic scattering;induction
Report Number
DRDC-RDDC-2015-R108 — Scientific Report
Date of publication
01 Jul 2015
Number of Pages
34
DSTKIM No
CA041337
CANDIS No
802445
Format(s):
Electronic Document(PDF)

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