New monolithic three dimensional field sensors with high sensitivity

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dc.contributor.author Hristoforou, E en
dc.date.accessioned 2014-03-01T01:24:44Z
dc.date.available 2014-03-01T01:24:44Z
dc.date.issued 2006 en
dc.identifier.issn 1454-4164 en
dc.identifier.uri http://hdl.handle.net/123456789/17411
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-33750584542&partnerID=40&md5=e47c61f9a95f8cd61395f9fc59578aa9 en
dc.relation.uri http://inoe.inoe.ro/joam/arhiva/pdf8_5/5Hristoforou.pdf en
dc.subject Induction en
dc.subject Magnetometry en
dc.subject Magnetoresistance en
dc.subject.classification Materials Science, Multidisciplinary en
dc.subject.classification Optics en
dc.subject.classification Physics, Applied en
dc.subject.other AMORPHOUS WIRES en
dc.subject.other FLUXGATE SENSOR en
dc.subject.other SPIN-VALVE en
dc.subject.other THIN-FILM en
dc.subject.other GMR en
dc.subject.other MAGNETOIMPEDANCE en
dc.subject.other AMR en
dc.subject.other TECHNOLOGIES en
dc.subject.other OPTIMIZATION en
dc.subject.other MULTILAYERS en
dc.title New monolithic three dimensional field sensors with high sensitivity en
heal.type journalArticle en
heal.language English en
heal.publicationDate 2006 en
heal.abstract In this paper, a new family of field sensors is presented, able to be integrated into a single integrated circuit, illustrating quite high sensitivity and accuracy. These sensors are based on the inductive or galvanic response of soft magnetic thin films or ribbons as sensing elements, subjected to on-plane or out-of-plane rotation of magnetization. The sensing cores are magnetized by rotating field on their surface, with amplitude significantly larger than the anisotropy field of the thin film or ribbon. Thus, they illustrate pseudo-super-paramagnetic behavior by means of circular magnetization, exhibiting no discontinuities on the magnetization rotation and therefore no magnetic noise due to absence of Barkhausen jumps. The two on plane under measurement field components may be determined by the modulation of the rotating field response, by means of phase shift and amplitude modulation of the second harmonic. Such phase shift and amplitude modulation is measured either by inductive means like on-chip Hall elements, or by galvanic techniques using on-chip VIAS connections. Absence of Barkhausen noise can result in sensitivity of the order of pT of the galvanic mode of operation, while use of Hall effect devices resulted in a sensitivity of the order of nT. These sensors may serve as single chip gyroscopes and electronic compasses for various applications like mobile telecommunications, driverless driving and precise GPS systems. en
heal.journalName Journal of Optoelectronics and Advanced Materials en
dc.identifier.isi ISI:000241473000008 en
dc.identifier.volume 8 en
dc.identifier.issue 5 en
dc.identifier.spage 1691 en
dc.identifier.epage 1697 en

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