Ferrite yog ib qho hlau oxide ntawm cov hlau ferrous. Hais txog hluav taws xob, ferrites muaj qhov tsis kam ntau dua li cov khoom sib xyaw ua ke ntawm cov hlau sib xyaw, thiab kuj muaj cov khoom ntawm dielectric. Lub zog sib nqus ib chav ntim ntawm ferrite yog qis Thaum lub zaus siab tau sau, lub zog sib nqus ib chav ntim ntawm ferrite yog qis. (Bs) kuj yog lub zog qis (tsuas yog 1/3 ~ 1/5 ntawm cov hlau ntshiab), uas txwv qhov ntau ntawm kev xaiv thiab txwv qhov ntau ntawm cov kev xav tau, thiab tuaj yeem siv dav hauv cov ntawv thov tam sim no muaj zog hauv ntau qhov chaw sib txawv.
Ferrite yog sintered los ntawm cov hlau oxides thiab lwm yam khoom xyaw. Feem ntau, nws muaj peev xwm muab faib ua peb hom: ferrite tas mus li, ferrite mos thiab gyromagnetic ferrite.
Cov hlau nplaum tas mus li ferrite tseem hu ua ferrite magnet, uas yog cov hlau nplaum dub me me uas peb feem ntau pom. Nws cov khoom siv tseem ceeb yog hlau oxide, barium carbonate lossis strontium carbonate. Tom qab magnetization, lub zog ntawm lub zog magnetic seem yog siab heev, thiab lub zog magnetic seem tuaj yeem tswj tau ntev. Feem ntau siv ua cov khoom siv hlau nplaum tas mus li. Piv txwv li: cov hlau nplaum hais lus.
Cov ferrite mos mos yog npaj thiab sintered los ntawm ferric oxide thiab ib lossis ntau lwm cov hlau oxides (piv txwv li: nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide, thiab lwm yam). Nws yog hu ua soft magnetic vim tias thaum lub magnetizing magnetic field ploj mus, muaj me ntsis lossis tsis muaj seem magnetic field. Feem ntau siv ua choke coil, lossis lub hauv paus ntawm lub intermediate frequency transformer. Qhov no txawv kiag li ntawm ferrite tas mus li.
Gyromagnetic ferrite yog hais txog cov khoom siv ferrite uas muaj cov yam ntxwv gyromagnetic. Lub gyromagnetism ntawm cov khoom siv sib nqus yog hais txog qhov xwm txheej uas lub dav hlau ntawm polarization ntawm lub dav hlau-polarized electromagnetic nthwv dej nthuav dav hauv ib qho kev taw qhia hauv cov khoom siv nyob rau hauv qhov kev ua ntawm ob lub teb sib nqus DC thiab cov teb sib nqus electromagnetic nthwv dej. Gyromagnetic ferrite tau siv dav hauv kev sib txuas lus microwave. Raws li hom siv lead ua, gyromagnetic ferrite tuaj yeem faib ua hom spinel, hom garnet thiab hom magnetoplumbite (hom hexagonal) ferrite.
Cov khoom siv sib nqus tau siv dav thiab siv tau rau hauv electro-acoustic, kev sib txuas lus, cov ntsuas hluav taws xob, lub cev muaj zog, nrog rau cov khoom siv nco, cov khoom siv microwave, thiab lwm yam. Nws tuaj yeem siv los kaw cov lus, suab paj nruag, thiab cov ntaub ntawv duab, cov khoom siv khaws cia sib nqus rau cov khoos phis tawj, thiab daim npav sib nqus rau daim ntawv pov thawj caij tsheb thiab kev them nqi. Cov hauv qab no tsom mus rau cov khoom siv sib nqus siv rau ntawm daim kab xev sib nqus thiab lub hauv paus ntsiab lus ntawm kev ua.
Lub sijhawm tshaj tawm: Plaub Hlis-11-2022
