Barkhausen noise properties measured by different methods for deformed armco samples

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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.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

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