Lub cev muaj zog DC muaj ob ntu, "stator" uas yog qhov chaw nyob ruaj khov thiab "rotor" uas yog qhov sib hloov. Lub rotor yog tsim los ntawm lub nplhaib-cov qauv hlau tub ntxhais, txhawb windings thiab txhawb coils, thiab kev sib hloov ntawm cov tub ntxhais hlau nyob rau hauv ib tug sib nqus teb ua rau cov coils los tsim voltage, uas generates eddy tam sim no. Fais fab poob ntawm DC lub cev muaj zog vim eddy tam sim no ntws yog hu ua eddy tam sim no poob, hu ua magnetic poob. Muaj ntau yam cuam tshuam rau tus nqi ntawm lub zog poob vim yog eddy tam sim no ntws, nrog rau cov thickness ntawm cov khoom sib nqus, zaus ntawm induced electromotive quab yuam, thiab ceev ntawm magnetic flux. Qhov tsis kam ntawm cov dej ntws tam sim no hauv cov khoom cuam tshuam rau txoj kev eddy tam sim no raug tsim. Piv txwv li, thaum qhov chaw hla ntawm cov hlau txo qis, cov eddy tam sim no yuav raug txo. Yog li ntawd, cov khoom siv yuav tsum tau khaws cia kom nyias nyias kom txo tau qhov chaw hla ntu kom txo tau cov eddy tam sim no thiab poob.

Txo tus nqi ntawm cov eddy tam sim no yog qhov laj thawj tseem ceeb vim li cas ntau cov ntawv hlau nyias lossis cov laminations siv hauv cov tub ntxhais armature. Cov ntawv nyias nyias yog siv los tsim cov kev ua haujlwm siab dua thiab vim li ntawd qhov tsis tshua muaj eddy tam sim no tshwm sim, uas ua kom muaj qhov tsawg dua ntawm qhov poob tam sim no, thiab txhua daim ntawv hlau hu ua lamination. Cov khoom siv rau lub cev muaj zog laminations yog hluav taws xob hlau, tseem hu ua silicon steel, uas txhais tau tias cov hlau nrog silicon. Silicon tuaj yeem yooj yim nkag mus rau hauv magnetic teb, ua rau nws tsis kam, thiab txo cov hysteresis poob ntawm cov hlau. Silicon steel yog siv rau hauv cov ntawv thov hluav taws xob qhov chaw electromagnetic yog qhov tseem ceeb, xws li lub cev muaj zog stator / rotor thiab transformer.

Cov silicon hauv silicon steel pab txo qis corrosion, tab sis lub ntsiab yog vim li cas rau kev ntxiv silicon yog txo cov hlau hysteresis, uas yog lub sij hawm ncua ntawm lub sij hawm thaum lub sij hawm ib tug magnetic teb yog thawj generated los yog txuas nrog cov hlau thiab cov hlau nplaum. Cov silicon ntxiv tso cai rau cov hlau los tsim thiab tswj cov hlau nplaum sib nqus kom zoo dua thiab nrawm, uas txhais tau hais tias silicon steel ua kom cov khoom siv tau zoo ntawm cov khoom siv hlau ua cov khoom tseem ceeb. Hlau stamping, txheej txheem ntawm kev tsim khoomlub cev muaj zog laminationsrau cov kev siv sib txawv, tuaj yeem muab cov neeg siv khoom ntau yam kev hloov kho, nrog cov cuab yeej thiab cov khoom tsim los rau cov neeg siv khoom tshwj xeeb.