Ring ring Ferrite - chii ichocho? Nzira yekuita rhete yakagadzirwa sei nemaoko ako?

Mumwe nomumwe wedu akaona zviduku zviduku pamatare emagetsi kana pamatare ekugadzirisa magetsi. Zvinogona kuwanikwa pamakombiyuta anozivikanwa zvikuru, zvose muhofisi uye pamusha, pamagumo ematairi anounganidza system unit kune keyboard, mouse, monitor, printer, scanner, etc. Izvi zvinonzi "ringirire ferrite" (kana kuti Ferrite firiji). Muchikamu chino, tichazoona kuti sei makombiyuta uye mapurogiramu ekugadzira zvigadzirwa zvemagetsi vanogadzira michina yavo yekambo nezvinhu izvi.

Chinangwa chikuru

Nhete ye-ferrite inokwanisa kuderedza kusvibiswa kwemafunguro eredhiyo uye kushandiswa kwemagetsi kwechiratidzo chinoparidzirwa pamusoro pematare. Mireza emakore uye magetsi emakombiyuta maviri uye mamwe masimba emagetsi ane zvinhu zvepasimiti, kureva kuti, dzinoshanda se antenna. Vanonyatsopinda mukati memamiriro ekunze akasiyana-siyana anogadzirwa mukati mekushandisa, nokudaro achiita kupindira pane zviteshi zveredhiyo paanowana chiratidzo cheredhiyo uye pane mamwe magetsi emagetsi. Kusiyana neizvi, kuburikidza nokutora kupindira kwemweya kubva kumashandisi ekuparadzira maredhiyo, kombiyuta kana zvimwe zvigadzirwa zvemagetsi zvinogona kushanda. Pano kubvisa izvi zvinoshandiswa uye kushandisa rin'i ye ferrite, iyo inopfekedzwa pamutambo kana kuenzaniswa.

Physical properties

Ferrite iyo inogadzirwa nemagetsi inotadza kuisa magetsi, izvo zvinoreva, iyo inonzi magnetic insulator. Munyaya iyi, mazai eddy haana kusikwa , uye naizvozvo anodzoka zvikuru kwazvo - munguva pamwe nehuwandu hwekunze kwemagetsi emagetsi. Iyi pfuma yemashoko ndiyo nheyo yekudzivirirwa kwakakwana kwezvinhu zvemagetsi. Ngetani ye-ferrite, yakasungirirwa pamakumbo, inogona kuumba imhedheni yakakura inoshandiswa ye-in-phase currents.

Nyaya iyi inoumbwa kubva kumakemikari akabatanidzwa emasidhoni esimbi nemasidhoni ezvimwe zvese. Iyo ine magetsi anoonekera uye hutsika hwemagetsi hutsika. Pamusana peizvi, ferrites haasati iri nevakwikwidzi pakati pevamwe magnetic materials mu high-frequency teknolojia. Mhete dzeFerrite dze2000 nm dzinowedzera zvakanyanya kukosha kwekambo (mazana emakore kana zviuru zvezviitiko), izvo zvinopa kuderedza kushandiswa kwepamusoro-nguva. Ichi chinhu chakaiswa pajambo panguva yekugadzirwa kwayo,, kutemwa semicircle mbiri, inowanikwa pata pakarepo mushure mekugadzirwa kwayo. I-ferrite firiji yakazara mupurasitiki. Kana iwe uchicheka, iwe unogona kuona mukati mechinhu chesimbi.

Iwe unoda filrite firiji here? Kana izvi ndezvimwe unyengeri here?

Makombiyuta "ane ruzha" (mumagadzirirwe emagetsi) magadziri. Saka, bhobhobhoyo mukati megadziriro yehurongwa inogona kusvibisa pane imwe nguva ye kilohertz. Iko kemikisi ine microchip iyo inoshandawo pamutambo wepamusoro. Zvose izvi zvinotungamirira kune anonzi chizvarwa cheredhiyo rehurukuro pedyo nehurongwa. Muzviitiko zvakawanda, vanobviswa nekudzivirira bhodhi kubva kumagetsi emagetsi nemasitori esimbi. Zvisinei, imwe mheremhere yeruzha ndeyimbi dzemhangura dzinobatanidza zvigadzirwa zvakasiyana. Muzvokwadi, vanoita seantennas yakareba iyo inotora zviratidzo kubva kumatare emamwe maredhiyo uye terevhizheni, uye inokanganisa kushanda kwe "pachake" chigadzirwa. I-ferrite firiji inopedza rwiyo rwemagetsi nemagetsi ekuparidzira. Izvi zvinoshandura kushandiswa kwemagetsi emagetsi ekudengenyeka mumhepo inopisa. Ndicho chikonzero ivo vakaiswa pamagumo ematafura akawanda.

Nzira yekusarudza yakaita ferrite filter

Kuti uise ring ringirrite pamakanda ako nemaoko ako pachako, unoda kunzwisisa mhando dzezvinhu izvi. Mushure mezvose, zvichienderana nerudzi rwetambo uye huwandu hwayo, hunobva pane firiji (kubva kune zvinhu zvipi) ichave yakakodzera kushandiswa. Semuenzaniso, rhete yakakwira pamatafura e-multiticore (cord power, data transmission, video kana USB interface) inoita izvo zvinonzi mu-phase transformer muchikamu chino chinopfurikidza zviratidzo zve antiphase zvinotakura ruzivo runobatsira, uye zvinoratidza kukanganisa kwemaitiro evanhu. Muchiitiko ichi, zvakakosha kushandiswa kusina kunyora ferrite kuitira kuti usapindira kwekuparidzirwa kwemashoko, uye yepamusoro-frequency ferromaterial. Asi zvindori zvekunyorera pamaketani eintenna zvinosarudza kusarudza kubva pane zvinhu zvinenge zvichange zvisingabatsiri rukuru-ruzha rwenzwi, pane kuvaratidza zvakare mudata. Sezvaunogona kuona, chigadzirwa chisina kunaka chinogona kukuvadza kushanda kwefaira yako.

Ferrite Cylinders

Iyo yakareba yakawanda inonzi ferrite cylinders inobudirira zvikuru mukubata nekupindira. Zvisinei, inofanira kurangarirwa mupfungwa kuti zvipembenene zvakare zvakanyanya hazvisi nyore kushandisa, uye migumisiro yebasa ravo hazvizosiyana zvakasiyana kubva pane izvo zvishoma zviduku muhukuru. Nguva dzose shandisa mafirimu emhando dzakakosha: mukati mecheta inofanira kunge yakatarisana netambo, uye hupamhi hwayo inofanira kuenzana nehupamhi hwekambani yekambo.

Usakanganwa kuti haisi ma filters chete anobatsira kubatsira kurwisa rwiyo. Semuenzaniso, kuitira kutengesa zviri nani, zvinokurudzirwa kushandisa kabha nechikamu chikuru chemuchinjikwa. Paunosarudza kureba kwetambo, usaita mararamiro akareba akareba pakati pezvikwata zvakabatana. Mukuwedzera, hurombo husina kunaka hwehutano pakati petambo uye chibatanidzo chingakonzerawo kupesana.

Kuenzanisa kwemarin'i

Mhando yakanyanya kushandiswa yekuisa marin'i emarori ndeyotevera: K D × d × H, iyo:

- K chirevo chezwi rokuti "ring";

- D - kureba kwekunze kwechibereko;

D isha yepakati yemhete ye ferrite;

- Н - kureba kwemuorivhi.

Mukuwedzera kune huwandu hwakaenzana hwechigadzirwa, rudzi rwezvinhu zvakagadzirwa nehutromagnetic inopodhwa mukucherechedza. Muenzaniso wekodha unogona kuva nefomu inotevera: M20BH-1 K 4x2.5x1.6. Chikamu chechipiri chinopindirana nezviyero zvakakwana zvechindori, uye iyo yekutanga magnetic permeability (20 μ _i ) inonyorwa mukutanga. Mukuwedzera kune zviyero izvi, mubhuku rinotsanangurwa, mumwe mugadziri anoratidza nguva inokosha, hysteresis loop parameters , resistivity uye Curie kutengesa kweimwe chigadzirwa.

Ndeipi imwezve inoshandisa marin'i eiri

Mukuwedzera kune chiziviso chinonyatsozivikanwa se-high-frequency protection, ferromagnetic zvinhu zvinoshandiswa pakugadzirwa kwevashanduri. Vanogona kuonekwa kazhinji mumakombiyuta emagetsi emagetsi . Zvinonyatsozivikanwa kuti shanduro ine mhete yegrinrite inonyanya kushandiswa muvanokanganisa zvakaenzana. Zvisinei, haasi munhu wose anoziva kuti kune mukana we "kutambanudza" kuenzanisa. Iko kushandurwa kwe transformer kunokwanisa kuita basa rekuenzanisa zvakajeka. Mukuwedzera, vashanduri pamaketani e-ferrite vanowanzoshandiswa kuenzanisa zvinokonzerwa uye zvinopindira zvinopindira zvekukanda kwezvinhu zvinoshandiswa. Panguva imwecheteyo, kushingaira kushingaira uye kushanduka kwezvinhu zvinoshandurwa . Ndinotenda nekuda kwekupedzisira, chigadzirwa ichi chinogona kushandiswa kushandura huwandu hwekugadzirisa kukwanisa. "Tambanudza" vashanduri vanoshanda zvakanaka pavanenge vari pasi pe10 MHz.

Mhedziso

Kune avo vanofarira nzira yekufambisa rin'i ye ferrite pachavo, inofanirwa kutarirwa mupfungwa kuti mhepo yakashata, iyo inotangwa ne-high-frequency ferrite core, inogona kuwedzerwa nyore nekuita kutendeuka kwakasiyana kwemuitisi pairi. Sezvinoratidzirwa nenyanzvi yekugadzira magetsi, kusagadzikana kwegadziriro yakadaro kuchawedzera maererano nekuenzana kwehuwandu hwekutsvaga. Asi izvi zviri munharaunda, asi mukuita chifananidzo chacho chakasiyana zvakasiyana nekuda kwekusagadzikana kwezvinhu zvegromromagnetic uye kurasikirwa mavari.

Kushandura kwemaviri pamusana kunowedzera kupera kusina kana kana, sezvinofanira kuva, asi zvishoma. Semugumisiro, kuitira kuti mvumo yakasiyana-siyana iende yakakodzerwa mumucheka wechiramu, unofanirwa kusarudza chindori chekukura kukuru. Kana izvi zvisingagamuchirwi, uye foni inofanira kuramba yakareba, ndeyekushandisa tsvina yakawanda.