Inductive response of ferrites based on resonance effects

Kontos, N; Ktena, A; Sofianopoulou, T; Hristoforou, E

dc.contributor.author	Kontos, N	en
dc.contributor.author	Ktena, A	en
dc.contributor.author	Sofianopoulou, T	en
dc.contributor.author	Hristoforou, E	en
dc.date.accessioned	2014-03-01T01:24:30Z
dc.date.available	2014-03-01T01:24:30Z
dc.date.issued	2006	en
dc.identifier.issn	1454-4164	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17299
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33750581651&partnerID=40&md5=2727f74be25a469eaf90c94c4edc5129	en
dc.subject	Inductive response	en
dc.subject	Permeability	en
dc.subject	Resonance	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	SENSORS	en
dc.subject.other	MAGNETOIMPEDANCE	en
dc.subject.other	DEPOSITION	en
dc.subject.other	FILMS	en
dc.title	Inductive response of ferrites based on resonance effects	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	A method and a setup are presented that allow the investigation of the magneto-inductive phenomenon in the development of position, stress and field sensors, as well as in studying fundamental properties of the used ferromagnetic materials. The phenomenon of resonance in a series RLC circuit is used to study the effect of displacement of the soft ferrite core of the inductor on the peak output voltage across the resistor at resonance. More specifically, the displacement of the core! affects the inductance of the circuit and therefore the resonance frequency and the peak output voltage. Several ferrite samples have been used having undergone treatments such as oxidization, annealing and corrosion. The same RLC circuit has also been used to study the effect of applied tensile stress and magnetic field at various frequencies when the core of the inductor is a 25cm long ribbon made of an iron alloy. In this case, the resonance frequency is constant and the output voltage across the resistor is recorded as a function of frequency, stress, and magnetic field. In both cases, the results are correlated to the permeability of the core and the way its permeability changes with respect to the applied stress or field, the frequency of excitation, the treatment it has undergone and its magnetic history. Thus, the presented system may also serve as a tool for determination of the electric and magnetic properties of the under test samples.	en
heal.publisher	NATL INST OPTOELECTRONICS	en
heal.journalName	Journal of Optoelectronics and Advanced Materials	en
dc.identifier.isi	ISI:000241473000027	en
dc.identifier.volume	8	en
dc.identifier.issue	5	en
dc.identifier.spage	1770	en
dc.identifier.epage	1774	en