Ferrite pachimake - ndichiyani? Kodi kupanga mphete ferrite ndi manja anu?

Aliyense wa ife anaona zingwe mphamvu kapena zingwe zofanana zamakono zonenepa yaing'ono. Angapezeke pa machitidwe kwambiri ochiritsira computer, onse mu ofesi ndi kunyumba, pa malekezero a mawaya kuti kulumikiza dongosolo wagawo kwa kiyibodi, mbewa, polojekiti, chosindikizira, sikana, ndi zina zotero. D. mchitidwe limeneli limatchedwa "ferrite" (kapena ferrite). M'nkhaniyi, ife kumvetsa cholinga zimene opanga kompyuta ndi luso mkulu okonzeka ndi mankhwala ake chingwe otchulidwa zinthu.

Cholinga cha

mphete Ferrite angathe kuchepetsa chikoka pafupipafupi wailesi ndi mu atomu kulowelera pa mbendera, amene imafalikira ndi waya. Long chizindikiro ndiponso zingwe mphamvu kompyuta, ndi zina zipangizo mphamvu katundu parasitic, ndiko kuti, kuchita ngati mlongoti ndi. Iwo bwino kwambiri limatulutsa kunja phokoso malo osiyanasiyana amene amayambira mu chipangizo, potero kulenga kulowelela kwa okwerera mu wailesi ndi zipangizo zina zamagetsi. Tikawonetsetsa kutenga kusokonezedwa ndi mpweya ndi transmitters wailesi, kompyuta kapena zina pazipangizo mwina ntchito molondola. Kuti kuchotsa zodabwitsazi ndi ntchito mphete ferrite kuvala pa chakudya mphamvu kapena adaputala chingwe.

thupi katundu

Ferrite ndi ferromagnetic, si kuchititsa kuti, kwenikweni ndi maginito insulator. Zinthu zimenezi si kulenga mafunde zimakochezapo choncho mofulumira kwambiri magnetization zitasintha - kwa kugunda pafupipafupi minda kunja mu atomu. Mundawu zakuthupi ndi maziko a chitetezo bwino zamakono. The ferrite mphete avale pa chingwe ndi waluso kulenga lalikulu wamba mode panopa yogwira impedance.

Nkhanizi aumbike ku pawiri mankhwala oxides chitsulo ndi zitsulo zina. Iwo ali mikhalidwe yapadera maginito ndi otsika madutsidwe. Kudzera ferrites izi ndi pafupifupi palibe mpikisano pakati zipangizo zina maginito ukadaulo mkulu-pafupipafupi. Ferrite 2000nm mphete kusauka kwako inductance wa chingwe (mazana angapo kapena masauzande angapo), amene amapereka mkulu pafupipafupi phokoso yimitsira. Amafotokozera yakwera chingwe pa ulimi wake kapena kusema semicircles awiri, kupsa pa waya yomweyo pambuyo ulimi wake. Ferrite ali odzaza pa nkhani pulasitiki. Ngati inu kudula izo, inu mukhoza kuwona mkati mwa chidutswa cha chitsulo.

Kodi ferrite zidzafunidwe? Kapena kodi chopusitsira wina?

Makompyuta kwambiri "phokoso" (mawu a mu atomu) zipangizo. Choncho, mavabodi mkati galimotoyo amatha oscillate pa pafupipafupi kilohertz wina. The kiyibodi ali microchip, amene umagwira ntchito pa pafupipafupi mkulu. Zonsezi kumabweretsa otchedwa m'badwo phokoso wailesi pafupi dongosolo. Nthawi zambiri, iwo kuletsedwa ndi komiti mosamala m'minda mu atomu zitsulo nyumba. Komabe, gwero lina la phokoso - ndi mkuwa mawaya kuti kulumikiza zipangizo zosiyanasiyana. Ndipotu, zinthu tinyanga bola kuti kukatenga chizindikiro kwa technology ina yachingwe wailesi ndi televizioni, kulimbikitsa ntchito chida "wake". Ferrite fyuluta amachotsa mu atomu phokoso zizindikiro ndi wailesi. Maselo amenewa kutembenuza mu atomu mkulu-pafupipafupi Phokoso mu mphamvu kutentha. Ndicho chifukwa chake iwo amene anaika malekezero ambiri zingwe za.

Kodi kusankha ferrite

Kukhazikitsa chingwe pa mphete ferrite ndi manja anu, muyenera kumvetsa mitundu ya mankhwala amenewa. Ndipotu, mtundu wa waya ndi wochindikala zimadalira mtundu wanji wa fyuluta (ku nkhani zimene) ayenera kugwiritsa ntchito. Mwachitsanzo, mphete yakwera pa chingwe Mipikisano pachimake (mphamvu chingwe, deta, video, kapena USB-mawonekedwe), amalenga otchedwa gawo thiransifoma yomwe transmits chizindikiro odana ndi gawo limeneli, kubala kudziwa komanso amasonyeza phokoso wamba mode. Pankhaniyi, muyenera kugwiritsa ntchito si zogwira ferrite pofuna kupewa kuphwanya kufala kwa mudziwe, ndi ferromaterial mkulu. Koma mphete ferrite pa chingwe mlongoti ali makamaka osankhidwa zakuthupi kuti kudzatha phokoso mkulu-pafupipafupi, osati kusonyeza iwo kubwerera waya. Monga mukuonera, mankhwala pachithunzichi akhoza amanyoza ntchito chipangizo chanu.

zonenepa ferrite

bwino kwambiri kulimbana ndi kuwasokoneza wandiweyani zonenepa ferrite. Komabe, tizikumbukira kuti Zosefera kwambiri bulky ndi kovuta kwambiri ntchito ndi zotsatira za ntchito zawo nkomwe kuchita adzakhala osiyana kwambiri ndi pang'ono zing'onozing'ono kukula. Gwiritsani ntchito Zosefera miyeso akadakwanitsira: awiri mkati ayenera Choncho lifanane ndi wochititsa, ndipo m'lifupi adzakhala kutsatira m'lifupi cholumikizira ndi chingwe.

Musaiwale kuti ndi phokoso thandizo kuti alimbane ferrites osati. Mwachitsanzo, Ndi bwino kugwiritsa ntchito chingwe ndi lalikulu mtanda chigawo cha madutsidwe bwino. Kusankha kutalika kwa chingwe, sizipanga chakudya lalikulu la utali wa pakati zipangizo zogwiritsidwa. Komanso, gwero la kusokonezedwa angathe kutumikira zoipa khalidwe kugwirizana waya ndi cholumikizira.

Chodetsa ferrite mphete

Mtundu kwambiri ambiri kujambula chodetsa ferrite mphete chiri motere: K D × D × H, kumene:

- K - ndi chidule cha mawu akuti "mphete";

- D - kunja awiri a mankhwala;

- D - mumtima mwake wa ferrite mphete;

- H - kutalika kwa sefa.

Kuwonjezera pa miyeso ya mankhwala, olemba ndi encrypted mtundu zakuthupi ferromagnetic. Mwachitsanzo zolemba mwina mawonekedwe zotsatirazi: K-1 M20VN 4h2,5h1,6. Hafu ina limafanana ndi miyeso wonse wa mphete ndi woyamba encrypted koyamba maginito permeability (20 μ _i). Kuwonjezera magawo awa, maziko kufotokoza, aliyense wopanga limasonyeza pafupipafupi yovuta, magawo a hysteresis kuzungulira, resistivity ndi Curie kutentha kwa mankhwala makamaka.

Monga kugwiritsa ntchito mikanda ferrite

Kuwonjezera pa ntchito odziwika bwino ngati chitetezo mkulu pafupipafupi, zipangizo ferromagnetic ntchito kupanga tiransifoma. Iwo nthawi zambiri kuonedwa mu chipika cha kompyuta mphamvu kotunga zida. Izo ziri zodziwika bwino kuti thiransifoma pa mphete ferrite othandiza kwambiri mu akakhale opanga moyenera. Komabe, sikuti aliyense amadziwa kuti pali mwayi "Tambasula" akusamala. kusinthidwa uyu wa thiransifoma ndi angathe kuchita ntchito atasenza molondola kwambiri. Komanso, tiransifoma ankagwiritsa ntchito ferrite mphete kwa zofanana linanena bungwe ndi athandizira impedances wa magawo zipangizo transistor. Mu ntchito iyi wakusintha ndipo reactance. Chifukwa cha chipangizo otsiriza n'zotheka kuti ndilembe kusintha capacitance ikukonzekera osiyanasiyana. "Kwamakokedwe" tiransifoma ntchito bwino pa mafurikwense m'munsimu 10 MHz.

Pomaliza

Ofuna mmene chilonda ferrite yekha, tisaiwale kuti mndandanda impedance, amene anayambitsa mkulu-pafupipafupi ferrite pachimake, inu mosavuta kuonjezera ngati muli ndi motsatana ochepa a wochititsa lapansi. Monga chiphunzitso adafotokoza magetsi, m'njira imeneyi impedance zingawonjezere ndi lalikulu chiwerengero cha motsatana. Koma ndi chiphunzitso komabe, chithunzicho ndi yosiyana chifukwa cha nonlinearity ya zipangizo ferromagnetic ndi zomvetsa pa iwo.

A peyala ya madzulowo pakati kumawonjezera impedance wa kanayi, monga chiyenera kukhalira, koma pang'ono pokha. Motero, kuti akomere ankasinthana zambiri chingwe akanakhoza zosefera ayenera kusankhidwa mwadala akuluakulu mphete kukula. Ngati izi si yoyenera, ndi chingwe ayenera kutalika, ndi bwino ntchito Zosefera angapo.