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Using a magnetometer to image a two‐dimensional current distribution

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3 Author(s)
Roth, Bradley J. ; Living State Physics Group and Vanderbilt Electromagnetics Laboratory, Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 ; Sepulveda, Nestor G. ; Wikswo, John P.

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We describe a mathematical algorithm to obtain an image of a two‐dimensional current distribution from measurements of its magnetic field. The spatial resolution of this image is determined by the signal‐to‐noise ratio of the magnetometer data and the distance between the magnetometer and the plane of the current distribution. In many cases, the quality of the image can be improved more by decreasing the current‐to‐magnetometer distance than by decreasing the noise in the magnetometer.

Published in:

Journal of Applied Physics  (Volume:65 ,  Issue: 1 )

Date of Publication:

Jan 1989

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