Investigation of Optimum Field Amplitude for Stress Dependence of Magnetic Barkhausen Noise

Mandache, Catalin; Krause, Thomas W.; Clapham, L.

doi:10.1109/tmag.2007.904793

Cited by 34 publications

(28 citation statements)

References 28 publications

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“…Hereafter, for the sake of simplicity, the results will be illustrated using a sample of ferritic low-carbon steel CSN 12021, used in our previous work [5]. The magnetically open samples were homogenously magnetized by a single Fe-Si yoke (transformer C-core), as usually done in practice [5][6][7][8]. The scheme of our laboratory setup is shown in Fig.…”

Section: Experiments and Data Evaluationmentioning

confidence: 99%

“…In comparison with the few related publications [2,[6][7][8] and our previous article [5], this research proposes more detailed and accurate experiments, and deeper analysis of the mentioned measurement problems, which were scantily investigated previously. In particular, BN was sampled at a high rate and was referred to an accurately determined sample field [9].…”

Section: Introductionmentioning

confidence: 95%

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Governing conditions of repeatable Barkhausen noise response

Stupakov

Pal’a

Takagi

et al. 2009

Journal of Magnetism and Magnetic Materials

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Section: Experiments and Data Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Governing conditions of repeatable Barkhausen noise response

Stupakov

Pal’a

Takagi

et al. 2009

Journal of Magnetism and Magnetic Materials

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“…Firstly, the magnetic field distribution and its time variation within the material cannot be measured directly, so there can be doubts about the repeatability and controllability of the measurements. Because of the trade-off between measurement speed and accuracy, the choice of optimal frequency, amplitude [7] and number of sampled points / probe angles remains open. Secondly, even if the field was well-defined, some uncertainties would remain as to the fundamental sources of MBN.…”

Section: Introductionmentioning

confidence: 99%

Determination of Magnetisation Conditions in a Double-Core Barkhausen Noise Measurement Set-up

Augustyniak

Piotrowski

et al. 2015

J Nondestruct Eval

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The magnetic Barkhausen effect is useful for assessing 1D and 2D stress states of ferromagnetic steel objects. However, its extension to technically important materials, such as duplex anisotropic steels, remains challenging. The determination of magnetisation inside the studied object and the electromagnet for various geometries, materials and magnetisation angles is a key issue. Three-dimensional, dynamic finite element analysis has been applied to reproduce time-varying fields inside and outside the prototype of a double-core magnetising setup. Useful relationships between characteristics (peak height and location) and magnetic induction vector have been proposed. The qualitative plausibility of simulation has been validated with an experiment and an analytic formula of skin depth. The angular anisotropy of magnetic Barkhausen effect (MBN) in an isotropic sample has been shown in simulation and confirmed experimentally. The numerical model, despite some limitations, seems to be an efficient tool for calibrating stress/MBN relationships at least in isotropic structural steel components.Keywords Electromagnetic finite element method · Dynamic magnetisation of bulk volume · Eddy currents · Magnetic Barkhausen effect (MBN) B Marek Augustyniak

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“…However, the inuence of structural changes and material properties on BN in general varies throughout the magnetization process, thus the parameters of BN are, among others, dependent on the amplitude of the magnetic eld [5]. To do the BN measurements in a comprehensive way, for example for later usage when the samples are not already accessible, there is the question of at what eld amplitudes the BN should be measured.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Testing of Ferromagnetic Materials Utilizing Barkhausen Noise

Pal’a

Bydzovsky

2014

Acta Phys. Pol. A

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A new method of the Barkhausen noise measurement and optimization of the measured data processing with respect to non-destructive evaluation of ferromagnetic materials is proposed. The measuring method is based on well-known method of magnetic adaptive testing where a complex set of minor hysteresis loops is measured. Collecting the sets of obtained Barkhausen noise envelopes into suitable designed matrices and optimizing the data processing with respect to the maximum sensitivity to the evaluated variable were developed. The method is illustrated on the evaluation of plastic deformation of a steel sample. It is shown that the proposed measuring method and measured data processing bring an improvement of the sensitivity to the evaluated variable when comparing with measuring the traditional Barkhausen noise parameter (root mean square).

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Investigation of Optimum Field Amplitude for Stress Dependence of Magnetic Barkhausen Noise

Cited by 34 publications

References 28 publications

Governing conditions of repeatable Barkhausen noise response

Governing conditions of repeatable Barkhausen noise response

Determination of Magnetisation Conditions in a Double-Core Barkhausen Noise Measurement Set-up

Adaptive Testing of Ferromagnetic Materials Utilizing Barkhausen Noise

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