Magnetic Barkhausen Noise: Aspects of Generation and Modeling
الشريط الجانبي للمقالة
محتوى المقالة الرئيسي
الملخص
The Magnetic Barkhausen noise (MBN) technique
measures discrete changes in magnetization, known as
“Barkhausen jumps”, whi ch can be seen as steps i n the
hysteresis curve. When a ferro-magnetic material is
subjected to an external varying magnetic field, the
magnetization of the material wil l change in a non-linear
way. These changes in magnetization are described by the
hysteresis curve and are the result of modifications of
domain structure of the material. Changes in magnetization
are caused by domain wall creation, domain wall
annihilation, domain wall motion and rotation. In order to
improve the interpretation of Barkhausen noise, models are
needed which describe the dependence of magnetization on
material properties.
تفاصيل المقالة
هذا العمل مرخص بموجب Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
المراجع
B. D. Cullit y, Introduct ion of Magnet ic Materials, Addison
Wesley, Reading MA, USA, (1972).
M. Sablik, “A model for th e Barkhausen noise power as a function
of applied magnet ic field and st ress”, J. Appl. Phys., Vol. 74,
-5902, 1993.
M. Sablik, and B. August yniak, “The effect of mechanical stress
on a Barkhausen noise signal integrat ed across a cycle of ramped
magnet ic field” J. Appl. P hys., Vol. 79, 963, 1996. DOI: https://doi.org/10.1063/1.360880
D. C. Jiles, L. B. Sipahi, and G. J. Williams, “Modeling of
micromagnet ic Barkhausen act ivity using a stochast ic process
ext ension t o the theory of hysteresis” J. App. Phys; Vol. 73 pp
-5834, 1993.
D. C. Jiles and L. Suominen “Effect s of surface stress on
Barkhausen effect emissions: Model predictions and comparison
wit h X-Ray diffraction st udies” IEEE Trans. Mag. Vol. 30, 49244928,
M. Blaow, J. Evans, B. Shaw, Magnet ic Barkhausen noise: the
influence of microstruct ure and deformat ion in bending Act a Mat.
Vol. 53, pp 279-287, 2005. DOI: https://doi.org/10.1016/j.actamat.2004.09.021
M. Sablik and D. Jiles, “ Coupled magnetoelast ic theory of
magnet ic and magnetost rict ive hyst eresis”, IEEE Trans. Mag. Vol.
, pp 2113- 2118, 1993.
L. CCH, S. J. Lee, L. Li, L. C. Kerdus and D. C. Jiles “Modeling
st ress effect s on magnet ic hysteresis and Barkhausen emission
using a hyst eret ic-stochast ic model” IEEE Trans. Magn. Vol. 38,
pp2418 - 2420, 2002.