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IEVref: | 221-03-32 | ID: | |

Language: | en | Status: Standard | |

Term: | Rayleigh region | ||

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Definition: | in a graphic representation of the relation between the magnetic flux density and the magnetic field strength relation in a material, a region near the origin within which the flux density can be described by a quadratic function of the field strength: $\frac{B}{{\mu}_{0}}=\left({\mu}_{\text{i}}+v\text{\hspace{0.17em}}\widehat{H}\right)H\pm \frac{v}{2}\left({\widehat{H}}^{2}-{H}^{2}\right)$
where | ||

Publication date: | 1990-10 | ||

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Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 221-03-321.gif 2017-06-02: Cleanup - Remove Attached Image 221-03-322.gif | ||

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$\frac{B}{{\mu}_{0}}=\left({\mu}_{\text{i}}+v\text{\hspace{0.17em}}\widehat{H}\right)H\pm \frac{v}{2}\left({\widehat{H}}^{2}-{H}^{2}\right)$

where *B* is the magnetic flux density

*µ*_{0} is the magnetic constant

*µ*_{i} is the initial permeability

*H* is the magnetic field strength

$\widehat{H}$ is the peak value of *H*

and *v* is the Rayleigh hysteresis coefficient