A Study of the Probe Induced Disturbances on the Near-Field Measurement

Jin Shi
Richard E. DuBroff, Missouri University of Science and Technology
Kevin P. Slattery
Masahiro Yamaguchi
K.-I. Arai

This document has been relocated to http://scholarsmine.mst.edu/ele_comeng_facwork/1402

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Numerical simulations were used to investigate the disturbance introduced by placing a small magnetic loop probe in the near field of a driven loop. In the absence of the loop probe, the numerical simulations were compared with an approximate closed-form analytical expression for the magnetic field produced by the driven loop. The agreement between the approximate analytical results and the simulation was good. The next set of simulations was based on a physical model that included the probe and showed that the probe does exert an effect on the field being measured. Examples of these simulations and their implications on measurements will be discussed.