Mechanical noise limit of a strain coupled magneto(elasto)electric sensor operating under a magnetic or an electric field modulation - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Sensors Journal Année : 2014

Mechanical noise limit of a strain coupled magneto(elasto)electric sensor operating under a magnetic or an electric field modulation

Résumé

The mechanical noise limit of a strain coupled Magneto(elasto)Electric (ME) composite has been investigated when a magnetic or an electric field modulation is applied to sense a low frequency magnetic field and access DC field measurement capabilities. The sensitivity and noise of such a composite sensor was derived from constitutive equations based on the piezoelectric and ferromagnetic material properties. The analysis was used to evaluate the equivalent noise floor of the composite sensor and to explain the origin of noise by constituting a mechanically coupled electromagnetic model. Experimental measurements revealed a good fit with the proposed model. For example, an equivalent magnetic noise level of ~ 60 pT/Hz @ 1Hz with DC capability was achieved by using an appropriate field modulation.

Domaines

Electronique
Fichier principal
Vignette du fichier
20141015_ME_Articl_body_R1_final.pdf (1.15 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01075167 , version 1 (16-10-2014)

Identifiants

  • HAL Id : hal-01075167 , version 1

Citer

X. Zhuang, Marc Lam Chok Sing, C. Dolabdjian, Y. Wang, P. Finkel, et al.. Mechanical noise limit of a strain coupled magneto(elasto)electric sensor operating under a magnetic or an electric field modulation. IEEE Sensors Journal, 2014. ⟨hal-01075167⟩
115 Consultations
181 Téléchargements

Partager

Gmail Facebook X LinkedIn More