INVESTIGATION OF CORRELATION BETWEEN HYSTERESIS AND BARKHAUSEN NOISE MEASUREMENTS

Oleksandr Stupakov – Jozef Paľa – Ján Bydžovský – Ivan Tomáš – Peter Švec

   The main aim of this paper is to discuss the applicability of hysteresis and Barkhausen noise measurement methods to industrial tasks and to investigate the correlation of the results, obtained by these two magnetic techniques. The magnetic inductive and the Barkhausen noise measurements at different experimental configurations were done on a model series of open flat samples. The results proved the correlation between magnetic differential permeability and Barkhausen noise envelope. However, significant quantitative discrepancies between them have been also obtained. The reasons of these deviations are discussed in order to unify and standardize the magnetic hysteresis and the Barkhausen noise techniques.

Keywords: magnetic hysteresis measurements, Barkhausen noise measurements, magnetic non-destructive testing

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