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Area Magnetic materials and components / Permeability and losses

IEV ref221-03-34

Symbol
ηi

en
hysteresis core constant
in a magnetic core operating in the Rayleigh region, the tangent of the magnetic loss angle due to hysteresis divided by the product of the peak current î in, and the square root of the inductance L of, the measuring coil:

η i = tan δ h î L MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabeE7aOnaaBaaajeaybaGaaeyAaaqabaqcaaMaeyypa0JcdaWcaaqaaiGacshacaGGHbGaaiOBaiaaykW7caaMc8UaeqiTdq2aaSbaaKqaGfaacaGGObaabeaaaOqaaiaad6oadaGcaaqaaiaadYeaaSqabaaaaaaa@4566@

Note – The relation between the hysteresis material constant ηB and the hysteresis core constant is:

η i = η B μ 0 μ e 3 V e MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabeE7aOnaaBaaajeaybaGaaeyAaaqabaGccqGH9aqpcqaH3oaAdaWgaaqcbawaaiGackeaaSqabaGcdaGcaaqaamaalaaabaGaeqiVd02aaSbaaKqaGfaacaaIWaaaleqaaOGaaGPaVlabeY7aTnaaDaaajeaybaGaciyzaaqaaiaaiodaaaaakeaacaWGwbWaaSbaaKqaGfaacaGGLbaabeaaaaaaleqaaaaa@479E@

where μe is the effective permeability and Ve the effective volume.


fr
constante hystérétique (d'un noyau) f
dans un noyau magnétique fonctionnant dans le domaine de Rayleigh, quotient de la tangente de l'angle de pertes magnétiques par hystérésis par le produit de la valeur de crête î du courant dans la bobine associée au noyau et de la racine carrée de l'inductance L de la bobine:

η i = tan δ h î L MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabeE7aOnaaBaaajeaybaGaaeyAaaqabaqcaaMaeyypa0JcdaWcaaqaaiGacshacaGGHbGaaiOBaiaaykW7caaMc8UaeqiTdq2aaSbaaKqaGfaacaGGObaabeaaaOqaaiaad6oadaGcaaqaaiaadYeaaSqabaaaaaaa@4566@

Note – La relation entre la constante hystérétique d'un matériau ηB et la constante hystérétique d'un noyau est:

η i = η B μ 0 μ e 3 V e MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabeE7aOnaaBaaajeaybaGaaeyAaaqabaGccqGH9aqpcqaH3oaAdaWgaaqcbawaaiGackeaaSqabaGcdaGcaaqaamaalaaabaGaeqiVd02aaSbaaKqaGfaacaaIWaaaleqaaOGaaGPaVlabeY7aTnaaDaaajeaybaGaciyzaaqaaiaaiodaaaaakeaacaWGwbWaaSbaaKqaGfaacaGGLbaabeaaaaaaleqaaaaa@479E@

μe est la perméabilité effective et Ve le volume équivalent.


ar
ثابت التخلفية لمادة

de
Hysterese-Kernkonstante, f

es
constante histerética (de un núcleo)

it
costante d’isteresi (di un nucleo)

ko
자심 이력 상수
자심 히스테리시스 상수

ja
磁心履歴係数
磁心ヒステリシス係数

pl
stała histerezowa magnetowodu

pt
constante histerética (de um núcleo)

sv
kärnhystereskonstant

Publication date: 1990-10
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