Barkhausen noise properties measured by different methods for deformed armco samples

Augustyniak, B; Piotrowski, L; Chmielewski, M; Kosmas, K; Hristoforou, E

dc.contributor.author	Augustyniak, B	en
dc.contributor.author	Piotrowski, L	en
dc.contributor.author	Chmielewski, M	en
dc.contributor.author	Kosmas, K	en
dc.contributor.author	Hristoforou, E	en
dc.date.accessioned	2014-03-01T02:46:42Z
dc.date.available	2014-03-01T02:46:42Z
dc.date.issued	2010	en
dc.identifier.issn	0018-9464	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32794
dc.subject	Armco iron	en
dc.subject	Barkhausen effect	en
dc.subject	Plastic deformation	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Armco iron	en
dc.subject.other	Barkhausen effect	en
dc.subject.other	Barkhausen effects	en
dc.subject.other	Barkhausen noise	en
dc.subject.other	C-core electromagnet	en
dc.subject.other	Count rates	en
dc.subject.other	Differential permeability	en
dc.subject.other	Ferrite cores	en
dc.subject.other	Magnetic flux densities	en
dc.subject.other	Maximal values	en
dc.subject.other	Room temperature	en
dc.subject.other	Tensile loads	en
dc.subject.other	Voltage signals	en
dc.subject.other	Eddy currents	en
dc.subject.other	Ferromagnetism	en
dc.subject.other	Hysteresis	en
dc.subject.other	Industrial applications	en
dc.subject.other	Magnetic flux	en
dc.subject.other	Magnetic materials	en
dc.subject.other	Plastic deformation	en
dc.subject.other	Probes	en
dc.subject.other	Photoresists	en
dc.title	Barkhausen noise properties measured by different methods for deformed armco samples	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/TMAG.2009.2033340	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TMAG.2009.2033340	en
heal.identifier.secondary	5393170	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The main goal of this research is the comparison of Barkhausen effect (BN) properties evaluated by means of two different methods: 1) using a "point probe" appropriate for industrial application; and 2) using a surrounding coil. The point probe contains ferrite core with searching coil perpendicular to the surface, and the sample is magnetized with a C-core electromagnet. Three quantities have been measured using first method: V1-rms voltage over many periods, Nc-number of BN pulses with amplitude higher than a given threshold, V2-maximal value of the flux derivative in the C-core. In the second method, the sample is magnetized with external solenoid and voltage signal induced in surrounding coil is analyzed providing several quantities: hysteresis loop of magnetic flux density, envelopes of BN rms voltage and pulse count rate over one period of magnetization, In-an integral of the rms envelope, N-total number of pulses, mu(m)-maximal value of differential permeability. The samples made from Armco iron sheet have been plastically deformed by tensile load at room temperature up to epsilon(p)= 20%. The differences in BN properties revealed by these two methods are discussed qualitatively and explained.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Magnetics	en
dc.identifier.doi	10.1109/TMAG.2009.2033340	en
dc.identifier.isi	ISI:000273765400097	en
dc.identifier.volume	46	en
dc.identifier.issue	2	en
dc.identifier.spage	544	en
dc.identifier.epage	547	en