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Title: Spherical and spheroidal shells as models in magnetic detection

Abstract

Magnetic detection is a widespread technique utilizing the Earth's magnetic field anomaly measurements in geophysics, in submarine detection, in environmental cleanup, and in detection of other hidden objects. The expressions for the scalar potentials of prolate and oblate spheroidal shells immersed in a dc uniform magnetic field are obtained. The expressions for the induced dipole moment of the shells are also evaluated. The problem is solved by finding solutions for the Laplace equation that satisfy boundary conditions at the shell surfaces. The shell thickness effect on the induced dipole moment and on its orientation are evaluated. The results appear to be useful for the analysis and for the prediction of magnetic signatures of hidden ferromagnetic objects belonging to a relatively large family.

Authors:
;
Publication Date:
Research Org.:
Ben-Gurion Univ. of the Negev, Beer-Sheva (IL)
OSTI Identifier:
20000588
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt3; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION; MAGNETIC FIELDS; DETECTION; DIPOLE MOMENTS; USES; FERROMAGNETIC MATERIALS; SHELLS

Citation Formats

Frumkis, L., and Kaplan, B.Z. Spherical and spheroidal shells as models in magnetic detection. United States: N. p., 1999. Web. doi:10.1109/20.799062.
Frumkis, L., & Kaplan, B.Z. Spherical and spheroidal shells as models in magnetic detection. United States. doi:10.1109/20.799062.
Frumkis, L., and Kaplan, B.Z. Wed . "Spherical and spheroidal shells as models in magnetic detection". United States. doi:10.1109/20.799062.
@article{osti_20000588,
title = {Spherical and spheroidal shells as models in magnetic detection},
author = {Frumkis, L. and Kaplan, B.Z.},
abstractNote = {Magnetic detection is a widespread technique utilizing the Earth's magnetic field anomaly measurements in geophysics, in submarine detection, in environmental cleanup, and in detection of other hidden objects. The expressions for the scalar potentials of prolate and oblate spheroidal shells immersed in a dc uniform magnetic field are obtained. The expressions for the induced dipole moment of the shells are also evaluated. The problem is solved by finding solutions for the Laplace equation that satisfy boundary conditions at the shell surfaces. The shell thickness effect on the induced dipole moment and on its orientation are evaluated. The results appear to be useful for the analysis and for the prediction of magnetic signatures of hidden ferromagnetic objects belonging to a relatively large family.},
doi = {10.1109/20.799062},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt3,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}