Abstract
This paper presents a model for the multi-push-pull configuration of magnetoelectric (ME) laminated composites which consist of magnetostrictive and piezoelectric layers with interdigitated ID electrodes encapsulated in Kapton. Analytical solutions for the ME voltage coefficient αV and charge coefficient αQ were derived. A ME composite has been made by magnetostrictive Metglas foils and piezoelectric 0.35Pb(In1/2Nb1/2)-0.35Pb(Mg1/3Nb2/3)-0.30PbTiO3 single crystal fibers, which exhibited a high ME charge coefficient αQ of 3756 pC/Oe at 1020 Hz. Besides showing a good linear relationship with AC magnetic field, the related ME sensor has a low noise equivalent magnetic induction of 10 pT/Hz1/2 at 1 Hz and 13 fT/Hz1/2 at resonant frequency.
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