Thaum asilicon hlaudaim ntawv yog magnetized mus rau ib tug tshwj xeeb sib nqus flux ceev nyob rau hauv ib tug AC magnetic teb ntawm ib tug tej zaus, lub zog poob rau ib chav tsev qhov hnyav ntawm silicon steel ntawv yog hu ua hlau poob nqi. Qhov zaus ntawm AC magnetic teb feem ntau siv yog 50 lossis 60 Hz, thiab qhov sib nqus flux ua tiav feem ntau yog 1.5 lossis 1.7 Tesla. Cov khoom siv feem ntau ntawm cov hlau poob yog tus nqi watt poob ib kilogram lossis ib phaus ntawm silicon steel ntawv, qhia hauv Watt / kg lossis Watt / lb. Cov peev txheej ntawm cov hlau tsis muaj nqi ntawm cov ntawv silicon steel muaj xws li hysteresis poob, eddy tam sim no poob thiab txawv txav tam sim no poob. Thaum lub sij hawm magnetization txheej txheem ntawm silicon steel los xij, hysteresis yuav tshwm sim. Hysteresis poob yog thaj chaw uas muaj los ntawm B-H hysteresis nkhaus.
Lub eddy tam sim no poob ntawm silicon steel ntawv pib los ntawm alternating magnetic teb. Vim yog qhov cuam tshuam ntawm Faraday's theorem, qhov hluav taws xob induced yog tsim nyob rau hauv daim ntawv silicon steel. Raws li Ohm txoj cai, qhov hluav taws xob ua rau muaj kev cuam tshuam tam sim no hauv silicon steel ntawv, uas ua rau Joule kub ntawm silicon steel ntawv. Qhov no lub zog poob no hu ua eddy tam sim no poob.
Raws li classical electromagnetic txoj kev xav, eddy tam sim no poob muaj feem xyuam rau lub thickness, resistivity, sib nqus flux ceev thiab zaus ntawm cov hlau ntawv. Lub eddy tam sim no poob yog proportional rau lub square ntawm lub thickness ntawm steel ntawv thiab inversely proportional rau cov kuj coefficient ntawm steel ntawv. Yog li ntawd, lub thickness ntawm siab -qib silicon steel los xij zoo li nyias. Txhawm rau ua kom cov coefficient tsis kam ntawm cov ntawv hlau, cov ntawv silicon steel tau ntxiv Silicon, txhuas thiab lwm yam khoom.
Lub zog poob tom qab rho tawm hysteresis poob thiab eddy tam sim no poob los ntawm cov hlau tsis muaj nqi yog hu ua txawv txav eddy tam sim no poob. Cov kws tshawb fawb ntseeg hais tias qhov txawv txav tam sim no poob yog tshwm sim los ntawm microscopic eddy tam sim no poob los ntawm kev txav mus los thiab kev sib hloov ntawm cov khoom sib nqus. Yog li ntawd, qhov txawv txav eddy tam sim no poob muaj feem xyuam rau qhov loj ntawm lub magnetic domain.
Yog hais tias lub magnetic teb ntawm lubsilicon steel ntawvyog loj, nws yuav tig sai dua thaum magnetized thiab lub microscopic eddy tam sim no poob yuav nce. Hlau poob tus nqi yog qhov tseem ceeb tshaj plaws cov cuab yeej taw qhia ntawm silicon steel los xij, thiab nws tseem yog lub hauv paus tshwj xeeb rau kev muab qhab nia silicon steel los xij raws li ntau yam qauv kev lag luam. Qhov qis dua tus nqi hlau poob, qib siab dua thiab siab dua nws lub zog ua haujlwm.