Loading [MathJax]/extensions/MathZoom.js
Reconstruction of two-dimensional magnetization and susceptibility distributions from the magnetic field of soft magnetic materials | IEEE Journals & Magazine | IEEE Xplore

Reconstruction of two-dimensional magnetization and susceptibility distributions from the magnetic field of soft magnetic materials


Abstract:

We apply a spatial filtering technique to solve the two-dimensional magnetization imaging problem. This allows us to reconstruct the magnetization distribution from the m...Show More

Abstract:

We apply a spatial filtering technique to solve the two-dimensional magnetization imaging problem. This allows us to reconstruct the magnetization distribution from the measured magnetic field above a planar soft magnetic sample exposed to an applied magnetic field. Knowledge of the magnetizing field distribution can then be used to determine the susceptibility distribution and hence to obtain information about the material characteristics of the sample. By simulation of an actual experiment, we examine the spatial resolution of the resulting image and discuss the uniqueness of solutions to the inverse problem.
Published in: IEEE Transactions on Magnetics ( Volume: 32, Issue: 1, January 1996)
Page(s): 230 - 234
Date of Publication: 31 January 1996

ISSN Information:

References is not available for this document.

Select All
1.
I. A. Beardsley, "Reconstruction of the magnetization in a thin-film by a combination of Lorentz microscopy and external field measurements", IEEE Trans. Magn., vol. 25, no. 1, pp. 671, 1989.
2.
D. S. Buchanan, D. B. Crum, D. Cox and J. P. Wikswo, "MicroSQUID: A close-spaced four channel magnetometer" in Advances in Biomagnetism, New York:Plenum, pp. 677-679, 1990.
3.
J. D. Jackson, Classical Electrodynamics, New York:Wiley, 1962.
4.
B. J. Roth, N. G. Sepulveda and J. P. Wikswo, "Using a magnetometer to image a two-dimensional current distribution", J. Appl. Phys., vol. 65, no. 1, pp. 361-372, 1989.
5.
N. G. Sepulveda, I. M. Thomas and J. P. Wikswo, "Magnetic susceptibility tomography for three-dimensional imaging of diamagnetic and paramagnetic objects", IEEE Trans. Magn., vol. 30, no. 6, pp. 5062-5069, 1994.
6.
I. M. Thomas, T. C. Moyer and J. P. Wikswo, "High resolution magnetic susceptibility imaging of geological thin sections: Pilot study of a pyroclastic sample from the bishop tuff", Geophysical Res. Lett., vol. 19, no. 21, pp. 2139-2142, 1992.
7.
I. M. Thomas, Y. P. Ma, S. Tan and J. P. Wikswo, "Spatial resolution and sensitivity of magnetic susceptibility imaging", IEEE Trans. Appl. Superconduct., vol. 3, no. 1, pp. 1937-1940, 1993.
8.
J. P. Wikswo, "High-resolution measurements of biomagnetic fields", Advances in Cryogenic Engineering, vol. 33, pp. 107-116, 1988.
Contact IEEE to Subscribe

References

References is not available for this document.