A hybrid Jiles-Atherton / Stoner-Wohlfarth magnetic hysteresis model for inductive sensors and actuators

Dimitropoulos, PD; Stamoulis, GI; Hristoforou, E

dc.contributor.author	Dimitropoulos, PD	en
dc.contributor.author	Stamoulis, GI	en
dc.contributor.author	Hristoforou, E	en
dc.date.accessioned	2014-03-01T02:42:24Z
dc.date.available	2014-03-01T02:42:24Z
dc.date.issued	2004	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30984
dc.subject	Inductive Sensors	en
dc.subject	Magnetic Hysteresis	en
dc.subject	Magnetic Sensors	en
dc.subject.other	Actuators	en
dc.subject.other	Computer aided design	en
dc.subject.other	Dynamic response	en
dc.subject.other	Eddy currents	en
dc.subject.other	Magnetic anisotropy	en
dc.subject.other	Magnetic hysteresis	en
dc.subject.other	Magnetic resonance	en
dc.subject.other	Polycrystalline materials	en
dc.subject.other	Inductive sensors	en
dc.subject.other	Jiles-Atherton (JA) theory	en
dc.subject.other	Magnetic sensors	en
dc.subject.other	Multi-domain magnetic structures	en
dc.subject.other	Thermal reponse	en
dc.subject.other	Sensors	en
dc.title	A hybrid Jiles-Atherton / Stoner-Wohlfarth magnetic hysteresis model for inductive sensors and actuators	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICSENS.2004.1426489	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICSENS.2004.1426489	en
heal.identifier.secondary	W3L-E.3	en
heal.publicationDate	2004	en
heal.abstract	The Jiles-Atherton (JA) theory of hysteresis is currently used in the majority of CAD tools. The JA model provides precise results in the case of poly crystalline, multi-domain magnetic structures, whose flux-reversal is dominated by pinning mechanisms. Thermal and dynamic response including Eddy-current loss and magnetic resonance can also be incorporated. However, it does not account for the shape- and magnetoelastic-anisotropy fields that severely affect the hysteresis loop of single-domain, thin-film structures. In this case the Stoner-Wohlfarth (SW) theory can be applied. Although the SW model provides precise results, it is rarely employed because: a) it does not account for dynamic response and pinning loss, and b) its classical formulation is complicated. In this work we expand the use of the alpha parameter employed in the JA theory to model the exchange interaction, in order to account for anisotropy fields. Thus, a hybrid JA/SW model is developed, which incorporates both models into one single formulation. In this way thermal-agitation effects, minor-loops, domain-wall pinning-loss, Eddy-current loss, magnetic resonance, shape-, and magnetoelastic-anisotropy can be altogether modeled. ©2004 IEEE.	en
heal.journalName	Proceedings of IEEE Sensors	en
dc.identifier.doi	10.1109/ICSENS.2004.1426489	en
dc.identifier.volume	3	en
dc.identifier.spage	1566	en
dc.identifier.epage	1569	en