A constitutive model for the frequency dependence of magnetic hysteresis

Ho, Kwangsoo

doi:10.1016/j.physb.2014.06.011

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…The frequency dependence of the magnetic hysteresis gives important information about the properties of the tested material. It is also the subject of theoretical considerations in paper [ 8 , 9 ]. The presented method is based on mixing two magnetic fields in the tested material: the first of these fields has a very low amplitude, the shape of sine wave (AC bias) and the frequency range form several to thousands of Hertz.…”

Section: Discussionmentioning

confidence: 99%

Application of the mixing of the field of low amplitude AC bias with a strong field of linear slow varying to investigate the magnetic properties of materials

Nowrot

2021

Heliyon

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The paper presents a new experimental method of the magnetic hysteresis loop investigation and the constructed measurement instrument. The principle of operation is to mix two magnetic fields: the first of these fields has a very low amplitude, a shape of sine wave (AC bias) and the frequency range order of 10–10 4 Hz. The second field has a very low frequency (order 10 −2 Hz), a high amplitude and forms approximately a triangle wave. The presented, dedicated system is different in comparison to commonly used hystographs and it consists of coreless coils only. The measurement method gives the opportunity of obtaining more detailed measurements of the initial cycles in the material magnetizing process. In a special case, the magnetic field strength changes in the B(H) curve can be stopped at any operating point and then it is possible to investigate local properties using AC bias field for various frequencies. The results revealed a successive displacement of the hysteresis loop and approaching to the steady state position.

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Section: Discussionmentioning

confidence: 99%

Application of the mixing of the field of low amplitude AC bias with a strong field of linear slow varying to investigate the magnetic properties of materials

Nowrot

2021

Heliyon

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show abstract

“…Non-destructive testing and evaluation is the science and practice of evaluating material properties variation without compromising its utility [1]. There are many methods available to access material properties variation such as ultrasonic [2], eddy current [3], magnetic method [4], radiography [5], pulse eddy current [6], and thermography [7] and so on.…”

Section: Introductionmentioning

confidence: 99%