Features of amplification of dipole magnetic field with linear ferromagnetic concentrator
S. I. Bondarenko, A. A. Shablo, V. P. Koverya, Yusheng He, Fenghui, Zhang, Hongsheng Ding
TL;DR
This paper experimentally investigates how a linear ferromagnetic concentrator amplifies a low-frequency dipole magnetic field, validating an analytical model that accounts for nonlinear permeability dependence on the field.
Contribution
It provides experimental evidence supporting an analytical relation for magnetic amplification considering nonlinear permeability effects.
Findings
Amplification depends on concentrator dimensions and field strength.
Experimental results confirm the nonlinear permeability model.
The study enhances understanding of magnetic field amplification mechanisms.
Abstract
Amplification of a low frequency magnetic field from a dipole source by means of linear ferromagnetic concentrator of different dimensions (permalloy micro wire) has been investigated experimentally. The results obtained strengthen the validity of the analytical relation for amplification which allows for nonlinear dependence of the magnetic permeability upon the value and distribution of the dipole field over concentrator length.
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