Umgomo kanye Nesizukulwane Sokuphazanyiswa kwe-Electromagnetic EMI

Umgomo kanye Nesizukulwane Sokuphazanyiswa kwe-Electromagnetic EMI

Ngaphambi kokuchaza isimiso sokuphazanyiswa kuka-electromagnetic, manje sesiyaqonda izimbangela ze-EMI:

1. Izimbangela ze-EMI

Izinhlobo ezahlukahlukene zokuphazanyiswa kwe-electromagnetic ziyizizathu eziyinhloko ezithinta ukuhambisana kwemishini kagesi.Ngakho-ke, ukuqonda imbangela yokuphazanyiswa kuka-electromagnetic kuyisidingo esibalulekile sokucindezela ukuphazamiseka kwe-electromagnetic kanye nokwenza ngcono ukuhambisana kwe-electromagnetic kwemikhiqizo ye-elekthronikhi.Isizukulwane sokuphazanyiswa kwe-electromagnetic singahlukaniswa zibe:

Ukugxambukela kwangaphakathi Ukugxambukela phakathi kwezingxenye ze-elekthronikhi zangaphakathi

I-1) Ukunikezwa kwamandla okusebenzayo kudala ukuphazamiseka okubangelwa ukuvuza ngokunikezwa kwamandla okusatshalaliswa kanye nokumelana nokufakwa kolayini.

I-2) Isiginali ihlanganiswe nenye ngokuphazanyiswa kwentambo yaphansi, ukunikezwa kwamandla kanye nentambo yokudlulisela, noma ithonya elibangelwa ukuhlangana phakathi kwezintambo.

3) Ezinye izingxenye ezingaphakathi kwemishini noma ohlelweni zikhiqiza ukushisa, okuthinta ukuzinza kwezingxenye ngokwazo kanye nezinye izingxenye.

I-4) Inkambu yamagnetic kanye nekagesi ekhiqizwa izingxenye zamandla aphezulu kanye ne-high-point-voltage ithinta ukuphazamiseka okubangelwa ezinye izingxenye ngokuhlanganisa.

Ukugxambukela kwangaphandle – umthelela wezinto ngaphandle kwemishini kagesi noma amasistimu kumasekhethi, amathuluzi noma amasistimu.

1) I-voltage ephezulu yangaphandle kanye nokuphakelwa kukagesi kuphazamisa amasekhethi e-electronic, amathuluzi noma amasistimu ngokuvuza kwe-insulation.

2) Izinto zangaphandle zamandla aphezulu zikhiqiza insimu enamandla kazibuthe emkhathini, ephazamisa amasekhethi kagesi, okokusebenza noma amasistimu ngokuhlanganisa i-mutual inductance.

3) Ukuphazanyiswa kwe-electromagnetic emkhathini kumasekhethi kagesi noma amasistimu.

I-4) Izinga lokushisa lendawo yokusebenza alizinzile, okubangela ukuphazamiseka okubangelwa izinguquko kumingcele yamasekethe kagesi, izinto zokusebenza noma izingxenye zangaphakathi zesistimu.

2. Umzila wokudlulisa wokuphazanyiswa kwe-electromagnetic

Uma imvamisa yomthombo wokuphazamiseka iphezulu, nobude beza besignali bokuphazamisa buncane kunosayizi wesakhiwo sento ephazanyiswe, isignali yokuphazamisa ingabhekwa njengendawo yomsakazo, ekhipha amandla kazibuthe kagesi ngendlela yamaza kagesi kagesi endiza. futhi ingena endleleni yento ephazanyiswe.Ngendlela yokuhlanganisa nokuhlanganisa, ngokusebenzisa i-dielectric evikelayo, ukuhlanganiswa kwe-impedance evamile kungena ohlelweni oluphazamisekile.Amasignali okuphazamisa angangena ohlelweni ngokuqhutshwa okuqondile.

3. Izinyathelo zokuthuthukisa ukuhambisana kwe-electromagnetic

Ukuthuthukisa ukuhambisana kozibuthe kwemikhiqizo ye-elekthronikhi, ukubeka phansi, ukuvikela nokuhlunga izindlela eziyisisekelo zokucindezela i-EMI.

1) Grounding

I-Grounding yindlela yokuqhuba ugesi phakathi kwezingxenye zikagesi neze-elekthronikhi ohlelweni oluya endaweni eyinkomba yaphansi.Ngaphezu kokuhlinzeka ngendawo yokuvikela ukuphepha kwezinto zokusebenza, umhlabathi uphinde unikeze indawo yereferensi yesignali edingekayo ukuze kusetshenziswe imishini.Indiza yaphansi ekahle ingumzimba obonakalayo onamandla anguziro kanye ne-ziro impedance, engasetshenziswa njengendawo eyinkomba yazo zonke izibuyekezo zesignali kusekethe, futhi noma iyiphi isignali ephazamisayo edlula kuyo ngeke ikhiqize ukwehla kwamandla kagesi.Kodwa-ke, ayikho indiza yaphansi efanelekile, edinga ukuthi sicabangele futhi sihlaziye ukusatshalaliswa kwamandla angaphansi komhlaba, senze ukwakheka komhlabathi nokucwaninga, futhi sithole amandla afanelekile angaphansi.Izindlela zokubeka phansi zingahlukaniswa zibe: indawo entantayo, indawo eyodwa enephuzu elilodwa, iphansi enamaphuzu amaningi, kanye ne-hybrid grounding.Ohlelweni lwesifunda, kunezinketho: ukumiswa kwesekethe, ukubeka phansi amandla, nokugxilisa isignali.

2) ukuvikela

Ukuvikela ukusebenzisa indawo evalekile ye-conductive noma uzibuthe kagesi ukuze uhlukanise ngogesi izikhala zangaphakathi nezingaphandle.Cindezela kakhulu ukuphazamiseka kwemisebe esikhaleni.Ihlukaniswe yaba i-electromagnetic shielding, i-electric field shielding kanye ne-magnetic field shielding.

Idizayini yokuvikela ingahloswa kokubili umthombo wokuphazamiseka kanye nento ephazanyiswe.Ngomthombo wokuphazamiseka, ukuklanywa kwengxenye yokuvikela kunganciphisa umthelela kwezinye izinto ezizungezile;entweni ephazamisekile, inganciphisa umthelela wamaza kagesi okuphazamisayo angaphandle emishinini.

Ukuvikela okusebenzayo: Beka umthombo wokuphazamiseka ngaphakathi komzimba ovikelayo ukuze uvimbele amandla kazibuthe kagesi namasiginali wokuphazamiseka ukuthi angavuzi esikhaleni sangaphandle.

I-Passive shielding: ukubeka okokusebenza okuzwelayo emzimbeni ovikelayo ukuze kungaphazanyiswa ukuphazamiseka kwangaphandle.

3) Ukuhlunga

Incazelo yokuhlunga isho indlela yokukhipha amasignali awusizo kumasignali angempela axutshwe nomsindo noma ukuphazamiseka.Izihlungi ze-EMIziyizingxenye zokuzuza ukuhlunga.

Eqinisweni, lapho idivayisi isebenza, izophinde ikhiqize imisindo ehlukahlukene.Ukushintsha ukunikezwa kwamandla kuwumthombo wokuphazamiseka oqinile kakhulu, futhi isignali ye-EMI ayikhiqizi nje kuphela i-frequency range, kodwa futhi ine-amplitude enkulu ngokuqhathaniswa.Ngokusakazwa kwesignali, le misindo iphazamisa izingxenye zezinga elilandelayo, futhi ukuqoqwa kokuphazamiseka okunjalo kungase kuholele ekusebenzeni okungavamile kwesifunda sonke.Ngokucabangela ukuthi isignali yokuphumayo yedivayisi enomsindo omkhulu kanye nokuphazamiseka okusobala kudivayisi yezinga eliphansi iyahlungwa ukuze kuhlungwe isignali yomsindo, ukuphazamiseka kudivayisi yezinga eliphansi kuzoncishiswa, futhi isistimu izosebenza ngokuzinzile.

I-DOREXSUmholi wemboni ye-EMI

Uma udinga ukuvikelwa kwe-EMI okusebenzayo, i-DOREXS inikeza ukuqinae nezihlungi ezithembekile ze-EMI zalo lonke uhlelo lokusebenza.Izihlungi zethu zifanele izicelo zochwepheshe emkhakheni wezempi nezokwelapha, kanye nokusetshenziswa kwezindawo zokuhlala nezimboni.Ngezinhlelo zokusebenza ezidinga isixazululo sangokwezifiso, ithimba lethu lochwepheshe lingaklama isihlungi se-EMI ukuze sihlangabezane nezidingo zakho ezithile.

Njengoba inesipiliyoni seminyaka engu-15 ekuxazululeni ukuphazamiseka kuka-electromagnetic, i-DOREXS ingumkhiqizi othembekile wezihlungi ze-EMI zekhwalithi ephezulu zezokwelapha, ezempi, nezohwebo.Zonke izihlungi zethu ze-EMI zenzelwe ukuhlangabezana namazinga omkhakha futhi zithobelane nemithetho ye-EMC.Hlola ukukhethwa kwethu kwezihlungi ze-EMI noma uhambise isicelo sekhwothi ngokwezifiso ukuze uthole isihlungi se-EMI esiphelele sezidingo zakho.Ukuze uthole ulwazi olwengeziwe mayelana nezihlungi ze-DOREXS ngokwezifiso nezijwayelekile ze-EMI, sicela usithinte.

Email: eric@dorexs.com
Ucingo: 19915694506
Whatsapp: +86 19915694506
Iwebhusayithi: scdorexs.com