1. Cov khoom siv sib nqus mos
Cov khoom no yog ib qho yooj yim rau magnetize thiab demagnetize nyob rau hauv ib tug qaug zog magnetic teb, xws li zinc-chromium ferrite thiab npib tsib xee-zinc ferrite magnetic rings. Mos ferrite yog cov khoom siv ferrite uas muaj kev siv dav, ntau yam, ntau qhov ntau, thiab cov khoom tsim tawm siab. Nws yog siv los ua ntau yam inductive Cheebtsam, xws li lim cores, transformer cores, xov tooj cua cores, thiab daim kab xev kaw thiab video hau. Nws kuj yog ib qho tseem ceeb ntawm cov khoom siv sib nqus kaw.
2. Cov khoom siv hlau nplaum ruaj khov
Cov khoom siv ferrite no tseem tuaj yeem khaws cov khoom muaj zog thiab qhov seem ntawm cov hlau nplaum tsis tu ncua rau lub sijhawm ntev tom qab qhov chaw magnetizing sab nraud ploj mus, thiab tuaj yeem siv los tsim cov hlau nplaum ruaj khov hauv qhov chaw sab nraud. Nws yog dav siv, xws li: siv los ua cov hlau nplaum tas li hauv ntau hom hluav taws xob ntsuas, tshuab hluav taws xob, xov tooj, hais lus, TV thiab microwave.
3. Gyromagnetic cov ntaub ntawv
Lub gyromagnetism ntawm cov khoom sib nqus yog hais txog qhov tshwm sim uas nyob rau hauv qhov kev txiav txim ntawm ob qho tib si perpendicular ruaj khov magnetic teb thiab electromagnetic yoj magnetic teb, dav hlau-polarized electromagnetic nthwv dej propagate nyob rau hauv ib tug tej yam kev taw qhia nyob rau hauv cov khoom, tab sis lawv polarization dav hlau yuav txuas ntxiv tig ib ncig ntawm lub ntiaj teb no. kev nthuav qhia. Feem ntau ntawm cov ntaub ntawv gyromagnetic yog ua ke nrog waveguides lossis cov kab sib kis rau kev xa cov microwaves los ua ntau yam khoom siv microwave. Feem ntau siv hauv radar, kev sib txuas lus, navigation, telemetry thiab lwm yam khoom siv hluav taws xob.
4. Moment cov khoom sib nqus
Qhov no yog hais txog ferrite cov ntaub ntawv nrog lub voj voos hysteresis. Nws cov yam ntxwv yog tias thaum muaj qhov me me sab nraud magnetic teb, nws tuaj yeem sib nqus thiab ncav cuag saturation. Tom qab cov hlau nplaum sab nraud raug tshem tawm, cov hlau nplaum tseem nyob zoo ib yam li thaum nws saturated. Cov khoom siv ferrite no feem ntau yog siv hauv nco cores ntawm ntau lub khoos phis tawj hluav taws xob.
5. Piezomagnetic cov ntaub ntawv
Cov khoom siv no yog hais txog ferrite cov ntaub ntawv uas mechanically stretch los yog luv nyob rau hauv cov kev taw qhia ntawm lub magnetic teb thaum magnetized, xws li npib tsib xee-zinc ferrite, npib tsib xee-tooj liab ferrite thiab nickel-chromium ferrite. Cov ntaub ntawv piezomagnetic feem ntau yog siv los ua cov transducers rau kev sib hloov ntawm electromagnetic zog thiab txhua yam zog, thiab raws li magnetostrictive ntsiab rau ultrasound.