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.
@article{arxiv.1304.0111,
title = {Features of amplification of dipole magnetic field with linear ferromagnetic concentrator},
author = {S. I. Bondarenko and A. A. Shablo and V. P. Koverya and Yusheng He and Fenghui Zhang and Hongsheng Ding},
journal= {arXiv preprint arXiv:1304.0111},
year = {2013}
}