Ferrite hlau nplaum yog cov khoom siv hlau nplaum uas siv tau zoo thiab muaj kev siv tseem ceeb hauv kev lag luam thiab lub neej. Hauv cov hlau nplaum ferrite, muaj cov sib nqus sib txawv, thiab kev faib tawm ntawm cov hlau nplaum no txiav txim siab cov khoom isotropic thiab anisotropic ntawm cov hlau nplaum.
Lub isotropy, lossis isotropy, ntawm cov hlau nplaum txhais tau hais tias kev faib tawm ntawm lub zog sib nqus yog tib yam hauv txhua qhov kev coj. Nyob rau hauv cov hlau nplaum ferrite, thaum lub magnetic teb siv nyob rau hauv ib qho kev taw qhia, cov khoom sib nqus pom los ntawm cov hlau nplaum yog tib yam, uas yog isotropic. Cov hlau nplaum no tuaj yeem nyiam thiab tso cov khoom ferromagnetic hauv txhua qhov kev taw qhia thiab muaj ntau yam kev siv.
Anisotropy hais txog qhov tseeb tias cov hlau nplaum muaj cov khoom sib nqus sib txawv hauv cov lus qhia sib txawv. Yog hais tias lub zog ntawm magnetic teb thov nyob rau hauv ib tug tej yam kev taw qhia yog ntau dua li nyob rau hauv lwm cov lus qhia, cov hlau nplaum yuav muaj cov khoom sib nqus uas yog biased nyob rau hauv cov kev taw qhia no. Qhov tshwm sim no hu ua anisotropy ntawm cov hlau nplaum. Ferrite hlau nplaum feem ntau yog anisotropic vim peb xav kom muaj zog hlau nplaum nyob rau hauv ib qho kev taw qhia.
Cov khoom isotropic thiab anisotropic ntawm ferrite hlau nplaum muaj cov kev cai sib txawv rau kev siv sib txawv. Hauv qee qhov kev siv, qhov adsorption thiab tso tawm muaj peev xwm ntawm cov hlau nplaum nyob rau hauv txhua qhov kev taw qhia yog xav tau. Hauv qhov no, cov hlau nplaum isotropic xav tau. Piv txwv li, cov hlau nplaum tub yees feem ntau siv hauv ntau lub tsev yog ua los ntawm cov hlau nplaum isotropic. Hauv qee qhov kev siv, cov hlau nplaum uas muaj zog sib nqus yuav tsum tau siv, qhov twg cov hlau nplaum anisotropic yuav tsum tau siv. Piv txwv li, cov motors, generators, thiab lwm yam yuav tsum tau siv cov hlau nplaum anisotropic.
Lub isotropy thiab anisotropy ntawm ferrite hlau nplaum yog ob yam khoom uas muaj nyob raws li kev siv. Txawm hais tias nws yog cov hlau nplaum isotropic lossis anisotropic, lawv yog cov khoom siv hlau nplaum ruaj khov uas tuaj yeem ua rau peb yooj yim heev. Tib lub sijhawm, peb kuj yuav tsum xaiv raws li peb xav tau thaum siv nws kom ua tiav cov txiaj ntsig zoo tshaj plaws.
