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Quantitative evaluation of the effect of temperature on magnetic Barkhausen noise

Wang, Yujue, Meydan, Turgut and Melikhov, Yevgen 2021. Quantitative evaluation of the effect of temperature on magnetic Barkhausen noise. Sensors 21 (3) , 898. 10.3390/s21030898

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Abstract

The effect of temperature on magnetic Barkhausen noise (MBN) can be divided into two types: the direct effect of temperature itself and the indirect effect of thermally induced stress. The theoretical model is proposed in this paper for describing these effects of temperature on the MBN signal. For the case considering the direct effect of temperature only, the analytical model allows the prediction of the effect of temperature on MBN profile, and based on the model, a simple linear calibration curve is presented to evaluate the effect of temperature on MBN amplitude quantitatively. While for the case where the indirect effect of thermal stress is taken into account in addition to the direct effect, the proposed theoretical model allows the deduction of parabolic function for quantitative evaluation of the combined effect on MBN. Both effects of temperature on MBN, i.e., the direct only and the combined one, have been studied experimentally on 0.5mm thickness non-oriented (NO) electrical steel and the adhesive structure of NO steel and ceramic glass, respectively. The reciprocal of the measured MBN peak amplitude (1/MBNp) in the first case shows a linear function of temperature, which agrees with the proposed linear calibration curve. While in the experiments considering the combined effects, 1/MBNp shows parabolic dependence on temperature, which is further simplified as a piecewise function for the practical applications.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Additional Information: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/)
Publisher: MDPI
ISSN: 1424-8220
Date of First Compliant Deposit: 26 January 2021
Date of Acceptance: 26 January 2021
Last Modified: 22 Feb 2021 10:48
URI: https://orca.cardiff.ac.uk/id/eprint/137956

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