Remanence, nto magnetism thiab magnetic flux yog peb yooj yim heev rau confuse lub tswv yim, ntawm no kom meej
Remanence yog ib qho tseem ceeb ntawm cov khoom. Nyob rau hauv qhov tseeb hais tias nws tus kheej-demagnetization tsis tshwm sim, lub remanence ntawm ib tug hlau nplaum yog tas li, uas yog txiav txim los ntawm cov khoom raw khoom formula thiab npaj technology, thiab nws cov kev ntsuam xyuas yog nqa tawm nyob rau hauv ib tug kiag li kaw lub xeev.
Surface magnetism yog qhov sib nqus induction nqi ntawm qhov ntsuas qhov chaw (ib cheeb tsam me me) thaum cov hlau nplaum los yog cov khoom sib nqus nyob rau hauv ib qho qhib lossis ib nrab qhib. Qhov saum npoo magnetic yog vector nrog kev taw qhia. Cov ntaub ntawv sib nqus ntawm qhov chaw sib txawv ntawm cov hlau nplaum sib txawv heev. Peb feem ntau hais tias tus nqi hlau nplaum saum npoo yog perpendicular rau lub dav hlau sib nqus ncej. Qhov siab tshaj plaws ntawm qhov sib nqus ntawm ib qho hlau nplaum yog ib nrab ntawm cov khoom sib nqus remanent. Nco ntsoov tias nws yog "ib qho hlau nplaum". Hauv qee cov khoom sib nqus thiab cov hlau nplaum sib nqus, cov qauv tsim tshwj xeeb sib nqus tuaj yeem siv los txhim kho qhov chaw sib nqus ntawm cov hlau nplaum, thiab tus nqi tuaj yeem tshaj li qhov tseem ceeb sib nqus.
Sib nqus flux yog ib qho kev ntsuas ntawm tag nrho cov hlau nplaum loj ntawm cov hlau nplaum los ntawm kev sim coil. Feem ntau cov khoom sib nqus tsis haum rau kev kuaj cov hlau nplaum sib nqus. Sib nqus flux kuj muaj cov kev xav tau los ntawm lub neej ntawd. Tau kawg, tag nrho tus nqi sib nqus flux kuj tuaj yeem ntsuas los ntawm kev siv peb-seem Helmholtz kauj hauv qhov ntsuas qhov tseeb. Kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov ntsuas kev taw qhia thaum ntsuas qhov chaw sib nqus flux thiab sib nqus flux.
Sib nqusCircuit ua
Sib nqus Circuit Court yog hais txog ib feem uas muaj ib lossis ntau dua cov hlau nplaum ruaj khov thiab cov khoom siv hlau nplaum nyob rau hauv ib qho duab thiab loj los ua ib qho chaw sib nqus nrog ib qho chaw ua haujlwm huab cua. Hauv kev sib nqus hluav taws xob, cov khoom siv hluav taws xob sib nqus ua lub luag haujlwm hauv kev tswj cov kev taw qhia flux, ua kom lub zog hauv zos sib nqus induction, tiv thaiv lossis txo cov hlau nplaum sib nqus, thiab txhim kho cov neeg kho tshuab lub zog ntawm tag nrho cov khoom.
Feem ntau, lub xeev sib nqus ntawm ib qho kev ywj pheej ib leeg hlau nplaum (tsis muaj cov khoom sib nqus thiab lwm yam khoom siv hlau nplaum tas li tshwm sim los ntawm kev hloov hluav taws xob sib nqus) hu ua qhib lub xeev. Qhov zoo tshaj plaws yog muab cov hlau nplaum rau ntawm lub platform yam tsis muaj kev sib nqus, tsis muaj cov khoom sib nqus thiab lwm yam hlau nplaum nyob ib puag ncig, ces cov hlau nplaum yog qhib lub xeev.
Yog hais tias txoj kev sib nqus ntawm cov hlau nplaum raug kaw tag nrho hauv qhov chaw ua haujlwm thiab tsis muaj cov hlau nplaum tshwm rau sab nraud, ces cov hlau nplaum yog nyob rau hauv lub xeev kaw. Qhov zoo tshaj plaws yog cov hlau nplaum nyob rau hauv qhov kev ntsuas demagnetization nkhaus, uas yuav luag tsis pom cov hlau nplaum sab nraud.
Saum toj no ntxiv rau lub xeev qhib thiab kaw, tus so tuaj yeem hu ua semi-qhib.
