Qhov sib nqus induction siv thiab sib nqus permeability ntawm cov hlau ntshiab yog ob lub tswv yim sib txawv ntawm lub cev, txhua tus muaj nws tus kheej tseem ceeb thaum piav txog kev cuam tshuam ntawm cov hlau nplaum thiab cov teeb meem.
Sib nqus induction siv, feem ntau yog sawv cev los ntawm lub cim B, hais txog qhov loj thiab kev taw qhia ntawm magnetic field siv ntawm ib qho chaw hauv qhov chaw. Nws kuj tseem tuaj yeem qhia tau tias qhov sib nqus flux dhau los ntawm qhov taw tes txuas mus rau thaj chaw ntawd hauv ib cheeb tsam, nrog rau chav tsev yog Tesla (T). Nws yog lub cev kom muaj nuj nqis uas ntsuas lub zog ntawm qhov chaw sib nqus thiab cuam tshuam los ntawm yam xws li yam khoom, qhov kub thiab txias, thiab qhov sib nqus ntawm qhov sib nqus. Rau cov hlau ntshiab, nws qhov sib nqus induction tsis yog tus nqi ruaj khov, feem ntau ntawm 1.6-2.2 Tesla ntawm chav tsev kub. Raws li qhov kub thiab txias, qhov sib nqus induction ntawm cov hlau ntshiab yuav txo qis; Thaum cov hlau nplaum sab nraud tau txhim kho, qhov sib nqus induction ntawm cov hlau ntshiab kuj yuav nce ntxiv.
Sib nqus permeability, sawv cev los ntawm lub cim μ, yog lub cev muaj nuj nqis uas piav qhia txog cov khoom muaj peev xwm los teb rau qhov chaw sib nqus, thiab yog ib qho kev ntsuas ntawm qhov nyuaj ntawm kev sib nqus ntawm cov khoom nyob rau hauv qhov kev txiav txim ntawm magnetic teb. High magnetic permeability qhia tau hais tias cov khoom yooj yim aligns nws tus kheej nrog lub magnetic teb. Raws li cov khoom siv hlau nplaum tseem ceeb, cov hlau ntshiab muaj qhov sib nqus zoo permeability, uas ua rau nws yog cov khoom siv tseem ceeb rau kev tsim khoom siv hluav taws xob, transformers, thiab lwm yam. Hauv huab cua, qhov sib nqus permeability ntawm cov hlau ntshiab tuaj yeem ncav cuag ntau txhiab mus rau kaum tawm txhiab tus Henry / meter (H / m), uas yog siab dua li cov khoom tsis sib nqus. Txawm li cas los xij, qhov sib nqus permeability ntawm cov hlau ntshiab tsis ruaj, tab sis cuam tshuam los ntawm purity, kub, thiab magnetic teb lub zog ntawm cov hlau ntshiab. Feem ntau hais lus, qhov siab dua qhov purity ntawm cov hlau ntshiab, qhov siab dua nws cov hlau nplaum permeability; Raws li qhov kub thiab txias, qhov sib nqus permeability ntawm cov hlau ntshiab yuav maj mam txo; Raws li cov hlau nplaum tsis muaj zog, qhov sib nqus permeability ntawm cov hlau ntshiab nce nrog qhov nce ntawm cov hlau nplaum lub zog, tab sis thaum lub zog hlau nplaum nce mus txog ib qho nqi, qhov sib nqus permeability nyhav saturate.