Ferrite tub ntxhais - yog dab tsi? Yuav ua li cas yuav ua rau ib tug ferrite nplhaib nrog koj ob txhais tes?

Txhua yam ntawm peb pom nyob rau hauv hwj chim cords los yog cables txuam hluav taws xob me me thooj voos kheej kheej. Lawv muaj peev xwm yuav nrhiav tau nyob rau hauv feem ntau cov pa computer systems, ob qho tib si nyob rau hauv lub chaw ua hauj lwm thiab tom tsev, rau hauv lub xaus ntawm lub nyob ntawm tej uas txuas lub system unit rau cov keyboard, nas, saib, tshuab luam ntawv, scanner, thiab hais txog. D. Qhov no lub caij no yog hu ua "ferrite" (los yog ferrite). Nyob rau hauv no tsab xov xwm, peb yuav to taub qhov hom phiaj uas cov manufacturers ntawm computer thiab siab technology nruab nrog nws cable khoom hais hais.

Lub hom phiaj tseem ceeb ntawm

Ferrite nplhaib peev xwm ntawm kev txo tus ntawm xov tooj cua zaus thiab electromagnetic cuam rau lub teeb liab, uas yog kis tau los ntawm cov hlau. Ntev lub teeb liab thiab lub hwj chim cables li cov computer, thiab lwm yam hwj huam cuab yeej muaj cab zog, uas yog, ua raws li ib tug kav hlau txais xov. Lawv zoo heev radiate rau sab nraum cheeb tsam ntau yam nrov hais tias yog generated nyob rau hauv lub ntaus ntawv, li no tsim cuam rau noj nyob rau hauv lub xov tooj cua thiab lwm yam electronic khoom. Conversely, noj lub cuam los ntawm cov huab cua los ntawm xov tooj cua transmitters, computer los yog lwm yam electronic device tej zaum yuav tsis ua hauj lwm kom raug. Uas yog tshem tawm qhov tshwm sim thiab siv cov ferrite nplhaib hnav los ntawm ib lub mov los yog adapter cable.

lub zog

Ferrite yog ib tug ferromagnetic, uas tsis yog-kev, uas yog, nyob rau hauv qhov tseeb nws yog ib tug sib nqus insulator. Qhov no cov ntaub ntawv uas tsis tsim eddy currents thiab yog li ntawd nws yog heev ceev ceev magnetization reversal - rau tus khiav nrawm zaus ntawm lwm electromagnetic teb. Qhov no tej khoom vaj tse ntawm cov khoom yog lub hauv paus rau lub zoo kev pab tiv thaiv ntawm hluav taws xob. Lub ferrite nplhaib coj rau lub cable muaj peev xwm sawv los ua ib tug loj ntau hom tam sim no active impedance.

Qhov no cov ntaub ntawv uas yog tsim nyob rau ntawm ib tug tshuaj compound ntawm hlau oxides nrog rau lwm cov hlau. Nws muaj cim magnetic yam ntxwv thiab cov uas tsis muaj conductivity. Los ntawm no ferrites muaj zoo tsis muaj competitors cov lwm magnetic ntaub ntawv nyob rau hauv high-zaus technology. Ferrite 2000nm rings zoo heev ua rau kom cov inductance ntawm lub cable (ob peb pua pua los yog txhiab ntawm lub sij hawm), uas muab siab zaus suab nrov hluav. Lub caij yog mounted rau lub qaum thaum lub sij hawm nws cov los yog txiav mus rau hauv ob semicircles, tabtom haum tus hlau tam sim ntawd tom qab nws lawm. Ferrite yog ntim rau hauv ib lub hnab yas cov ntaub ntawv. Yog hais tias koj txiav nws, koj yuav saib tau lub sab hauv ntawm ib daim hlau.

Tsis ferrite yuav tsum tau? Los yog nws lwm dag?

Computer heev "nrov" (nyob rau hauv cov nqe lus ntawm electromagnetic) pab kiag li lawm. Yog li, motherboard hauv lub chassis yog tau oscillate ntawm ib zaus ntawm ib tug kilohertz. Cov keyboard muaj ib tug microchip, uas kuj ua hauj lwm thaum muaj kev kub zaus. Tag nrho cov no ua rau yus lub thiaj li hu ua xov tooj cua suab nrov tiam nyob ze ntawm lub system. Nyob rau hauv Feem ntau, lawv yog tshem tawm los ntawm cov kev ntsuam xyuas board los ntawm electromagnetic teb hlau vaj tse nyob. Txawm li cas los, lwm qhov chaw ntawm cov suab nrov - nws yog tooj liab nyob ntawm tej uas txuas rau ntau yam pab kiag li lawm. Nyob rau hauv qhov tseeb, lawv ua raws li ntev antennae uas tuaj tos Pib ntsais koj teeb los ntawm lwm cov cable xov tooj cua thiab TV technology, thiab feem xyuam rau txoj kev ua hauj lwm ntawm "nws" kev ntsuas. Ferrite lim tuskheej electromagnetic suab nrov Pib ntsais koj teeb thiab broadcasting. Cov hlwb hloov electromagnetic high-zaus deeg mus rau hauv tshav kub zog. Uas yog vim li cas lawv yog ntsia rau hauv lub xaus ntawm feem ntau ntawm cov cables.

Yuav ua li cas xaiv ib tug ferrite

Rau nruab cov cable rau lub ferrite nplhaib nrog koj ob txhais tes, koj yuav tsum to taub lub hom ntawm cov khoom. Tom qab tag nrho, lub hom hlau thiab nws cov thickness nyob ntawm seb tus lim (los ntawm dab tsi cov khoom) yuav tsum tau siv. Piv txwv li, lub nplhaib yog mounted rau cov multi-core cable (lub hwj huam qaum, cov ntaub ntawv, video, los yog USB-interface), tsim ib tug thiaj li hu ua theem transformer uas hau anti-theem Pib ntsais koj teeb nyob rau hauv cov cheeb tsam no, kev coj tus kheej pab tau cov lus qhia, tab sis kuj qhia cov ntau hom suab nrov. Nyob rau hauv cov ntaub ntawv no, koj yuav tsum tau siv uas tsis yog-absorbing ferrite nyob rau hauv kev txiav txim kom tsis txhob ua txhaum ntawm kis tau tus mob ntawm cov ntaub ntawv, thiab ib tug siab ferromaterial. Tab sis ferrite rings rau lub kav hlau txais xov cable yog dua li xaiv los ntawm ib cov khoom uas yuav dissipate high-zaus suab nrov, es muaj kev cuam tshuam lawv rov qab nyob rau hauv cov hlau. Raws li koj tau pom, tsis yog cov khoom yuav thuam qhov kev kawm ntawm koj ntaus ntawv.

ferrite thooj voos kheej kheej

Feem ntau cov zoo paub daws cuam tuab ferrite thooj voos kheej kheej. Txawm li cas los, nco ntsoov hais tias ib yam nkaus thiab loj cov ntxaij lim dej yog heev yooj yim mus siv, thiab kev soj ntsuam ntawm lawv cov chaw ua hauj lwm tsis yog nyob rau hauv kev xyaum yuav sib txawv heev los ntawm cov me ntsis me me nyob rau hauv loj. Yuav tsum tau siv cov ntxaij lim dej zoo qhov ntev: puab inch yuav tsum tob coincide nrog tus neeg xyuas pib, thiab nws cov dav yuav tsum ua raws li lub dav ntawm lub cable connector.

Tsis txhob hnov qab tias nrog lub suab nrov pab mus tua tsis tau tsuas yog ferrites. Piv txwv li, nws yog pom zoo kom siv ib tug cable nrog ib tug loj tus ntoo khaub lig seem rau zoo dua conductivity. Xaiv qhov ntev ntawm lub qaum, tsis txhob ua ib tug loj mov ntawm qhov ntev ntawm lub kev cob cog rua pab kiag li lawm. Nyob rau hauv tas li ntawd, qhov uas cuam yuav pab phem zoo kev twb kev txuas hlau thiab connector.

Npav ferrite rings

Feem ntau hom ntawm cov ntaubntawv povthawj siv npav ferrite rings yog raws li nram no: K D × d × H, qhov twg:

- K - yog ib tug tsiaj ntawv rau lo lus 'nplhaib';

- D - sab nraum txoj kab uas hla ntawm cov khoom;

- d - puab kab uas hla ntawm lub ferrite nplhaib;

- H - qhov siab ntawm lub taub lim.

Dhau li qhov ntev ntawm cov khoom, lub labeling yog encrypted hom ferromagnetic khoom. Piv txwv li nkag tej zaum yuav muaj cov nram qab daim ntawv: K-1 M20VN 4h2,5h1,6. Tus lwm ib nrab sau raws nkaus Ii lub zuag qhia tag nrho ntev ntawm lub nplhaib thiab cov thawj encrypted pib sib nqus permeability (20 μ _i). Nyob rau hauv tas li ntawd mus rau cov tsis, lub keeb kwm yav dhau hauj lwm, txhua chaw tsim tshuaj paus qhia lub tseem ceeb heev zaus, cov tsis ntawm lub hysteresis voj, resistivity thiab Curie kub rau cov khoom.

Raws li tseem siv ferrite hlaws dai

Dhau li ntawm tus zoo-paub siv raws li ib tug loj tiv thaiv, ferromagnetic ntaub ntawv no yog siv rau kev tsim transformers. Lawv yog feem ntau pom nyob rau hauv blocks ntawm computer hwj chim khoom. Nws yog zoo dua lub npe hu hais tias tus transformer rau ib tug ferrite nplhaib yog zoo heev nyob rau hauv kuas mixers. Txawm li cas los, tsis yog txhua tus paub hais tias muaj ib lub sij hawm mus rau "stretch" balancing. Qhov no kev hloov kho ntawm lub transformer muaj peev xwm sawv ntawm kev ua tau lub ntsuas lag luam ntau yog. Tsis tas li ntawd, transformers yog lug siv ferrite rings kev txuam rau cov zis thiab tswv yim impedances ntawm theem ntawm transistor pab kiag li lawm. Nyob rau hauv no transforming kev ua si thiab reactance. Vim lub xeem ntaus ntawv nws yog tau mus thov rau ib tug hloov nyob rau hauv lub capacitance nyob ntau. "Tensile" transformers khiav lag luam zoo nyob rau hauv frequencies hauv qab no 10 MHz.

xaus

Cov uas xav nyob rau hauv yuav ua li cas lub qhov txhab ferrite ib leeg, nws yuav tsum tau muab sau tseg tias series impedance, uas ua tswvcuab high-zaus ferrite tub ntxhais, koj yuav tau yooj yim ua rau kom yog koj ua nws ib tug ob peb lem ntawm tus neeg xyuas pib. Raws li pom tias hluav taws xob kev tshawb xav, xws li ib tug system impedance yuav ua rau kom nrog lub square ntawm tus xov tooj ntawm koj lem. Tab sis nws yog nyob rau hauv kev tshawb xav, tiam sis nyob rau hauv kev xyaum, cov duab no yog sib txawv dog dig vim hais tias ntawm lub nonlinearity ntawm lub ferromagnetic cov ntaub ntawv thiab losses nyob rau hauv lawv.

Ib tug khub ntawm lem rau cov tub ntxhais tsub kom lub impedance ntawm plaub lub sij hawm, raws li nws yuav tsum, tab sis ib tug me ntsis tsawg. Raws li ib tug tshwm sim, nyob rau hauv thiaj li yuav haum raws li ntau koj lem nyob rau hauv lub cable yuav lim yuav tsum tau xaiv txhob txwm tshaj tawm loj nplhaib loj. Yog hais tias qhov no yog tsis tsim nyog, thiab cov cable yuav tsum yog tib ntev, nws yog zoo dua mus thov ob peb ntxaij lim dej.