Enhancement in magnetic field sensitivity and reduction in equivalent magnetic noise by magnetoelectric laminate stacks

TR Number
Date
2012-05-15
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics
Abstract

We have investigated the equivalent magnetic noise and magnetic field sensitivity for a magnetoelectric (ME) sensor unit of N numbers of ME laminates stacked together. Our results show with increasing N that the modeled and measured equivalent magnetic noises decreased by a factor of root N and that the magnetic field sensitivities increased by root N. For Metglas/Pb(Mg-1/3,Nb-2/3) O-3-PbTiO3 laminates, the equivalent magnetic noise decreased and the magnetic field sensitivity increased by a factors of 2.1 and 2.3, respectively, for N = 4 relative to that for N = 1. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4718441]

Description
Keywords
Magnetic field sensors, Laminates, Magnetic fields, 1/f noise, Random noise
Citation
Li, M. G., Junqi, Wang, Yaojin, Gray, David, Li, Jiefang, Viehland, D. (2012). Enhancement in magnetic field sensitivity and reduction in equivalent magnetic noise by magnetoelectric laminate stacks. Journal of Applied Physics, 111(10). doi: 10.1063/1.4718441