The fluxgate ring-core demagnetization field

M. De Graef; M. Beleggia

doi:10.1016/j.jmmm.2006.01.111

The fluxgate ring-core demagnetization field

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Abstract

The local demagnetization factor for the ring-core flux gate is derived analytically, based on a tangential magnetization model. The results are in good agreement with experimental data for a wide range of ring shape parameters. Approximate expressions in the limit of a narrow, thin ring are obtained, and indicate that the local demagnetization factor scales with the ratio of the cross-sectional area to the total area of the ring. Analytical modeling of the demagnetization factors for a uniform magnetization state results in an underestimate of the local cross-section averaged demagnetization factors by 50% or more.

Original language	English
Journal	Journal of Magnetism and Magnetic Materials
Volume	305
Issue number	2
Pages (from-to)	403-409
Number of pages	7
ISSN	0304-8853
DOIs	https://doi.org/10.1016/j.jmmm.2006.01.111
Publication status	Published - 2006
Externally published	Yes

Keywords

Demagnetization factors
Fluxgate
Internal field
Shape amplitude

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10.1016/j.jmmm.2006.01.111

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title = "The fluxgate ring-core demagnetization field",

abstract = "The local demagnetization factor for the ring-core flux gate is derived analytically, based on a tangential magnetization model. The results are in good agreement with experimental data for a wide range of ring shape parameters. Approximate expressions in the limit of a narrow, thin ring are obtained, and indicate that the local demagnetization factor scales with the ratio of the cross-sectional area to the total area of the ring. Analytical modeling of the demagnetization factors for a uniform magnetization state results in an underestimate of the local cross-section averaged demagnetization factors by 50% or more.",

keywords = "Demagnetization factors, Fluxgate, Internal field, Shape amplitude",

author = "{De Graef}, M. and M. Beleggia",

year = "2006",

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language = "English",

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issn = "0304-8853",

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T1 - The fluxgate ring-core demagnetization field

AU - De Graef, M.

AU - Beleggia, M.

PY - 2006

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N2 - The local demagnetization factor for the ring-core flux gate is derived analytically, based on a tangential magnetization model. The results are in good agreement with experimental data for a wide range of ring shape parameters. Approximate expressions in the limit of a narrow, thin ring are obtained, and indicate that the local demagnetization factor scales with the ratio of the cross-sectional area to the total area of the ring. Analytical modeling of the demagnetization factors for a uniform magnetization state results in an underestimate of the local cross-section averaged demagnetization factors by 50% or more.

AB - The local demagnetization factor for the ring-core flux gate is derived analytically, based on a tangential magnetization model. The results are in good agreement with experimental data for a wide range of ring shape parameters. Approximate expressions in the limit of a narrow, thin ring are obtained, and indicate that the local demagnetization factor scales with the ratio of the cross-sectional area to the total area of the ring. Analytical modeling of the demagnetization factors for a uniform magnetization state results in an underestimate of the local cross-section averaged demagnetization factors by 50% or more.

KW - Demagnetization factors

KW - Fluxgate

KW - Internal field

KW - Shape amplitude

U2 - 10.1016/j.jmmm.2006.01.111

DO - 10.1016/j.jmmm.2006.01.111

M3 - Journal article

SN - 0304-8853

VL - 305

SP - 403

EP - 409

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2

ER -

The fluxgate ring-core demagnetization field

Abstract

Keywords

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