期刊
MEASUREMENT SCIENCE AND TECHNOLOGY
卷 21, 期 11, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/21/11/115702
关键词
Barkhausen effect; plastic deformation; nondestructive evaluation
The paper presents the results of multiparameter analysis of Barkhausen noise (BN) signal properties. In addition to the commonly used quantifiers of the BN signal, such as amplitude, integral of the BN envelope or results of pulse count analysis, we propose an additional analysis based on the change in magnetizing current amplitude. As it turns out the character of the change of the BN signal (as a function of the plastic deformation level) measured for various magnetizing currents differs significantly. Being so, a comparison of the results obtained for at least two magnetizing intensities gives a much better description of a plastic deformation level. In addition to that we observe two monotonic changes in the BN signal properties-a systematic shift of the BN signal peak position and the increase in the frequency for which the maximum in the BN FFT spectra occurs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据