Artículos de revistas
An In-Depth Study of the Barkhausen Emission Signal Properties of the Plastically Deformed Fe-2%Si Alloy
Fecha
2008Registro en:
IEEE TRANSACTIONS ON MAGNETICS, v.44, n.11, p.3828-3831, 2008
0018-9464
10.1109/TMAG.2008.2002634
Autor
PIOTROWSKI, Leszek
AUGUSTYNIAK, Boleslaw
CHMIELEWSKI, Marek
LANDGRAF, Fernando J. G.
Institución
Resumen
This paper presents the results of the in-depth study of the Barkhausen effect signal properties for the plastically deformed Fe-2%Si samples. The investigated samples have been deformed by cold rolling up to plastic strain epsilon(p) = 8%. The first approach consisted of time-domain-resolved pulse and frequency analysis of the Barkhausen noise signals whereas the complementary study consisted of the time-resolved pulse count analysis as well as a total pulse count. The latter included determination of time distribution of pulses for different threshold voltage levels as well as the total pulse count as a function of both the amplitude and the duration time of the pulses. The obtained results suggest that the observed increase in the Barkhausen noise signal intensity as a function of deformation level is mainly due to the increase in the number of bigger pulses.