Hauv EMI tiag tiag thiab RF tiv thaiv cov phiaj xwm, xaiv qhov Faraday tawb kaw tsis tshua muaj kev xaiv "tus qauv khoom." Qhov teeb meem loj dua yog feem ntau tsis to taub qhov chaw ua haujlwm ua ntej, tom qab ntawd sim them nyiaj nrog kho vajtse tom qab- uas yuav luag ib txwm ua rau kev ua haujlwm tsis zoo lossis tsis tsim nyog.
Los ntawm xyoo ntawm EMC thiab RF shielding ua hauj lwm nyob rau hauv industrial thiab laboratory ib puag ncig, kuv twb pom hais tias kev vam meej kev xaiv yeej ib txwm pib nrog ib tug hauv paus ntsiab lus: txhais cov teeb meem ntawm electromagnetic ua ntej lub enclosure.
Pib nrog qhov tseeb EMI/RF teeb meem
A Faraday tawb enclosure tsis yog ib qho kev daws teeb meem. Nws coj txawv nyob ntawm seb hom kev cuam tshuam electromagnetic uas koj tab tom cuam tshuam nrog.
Hauv kev xyaum, EMI / RF teeb meem feem ntau poob rau hauv peb pawg:
l Sab nraud RF teeb liab cuam tshuam rau cov khoom siv rhiab
l Internal emissions leaking rau hauv ib puag ncig systems
l tswj kev sim lossis ntsuas ib puag ncig uas xav tau kev cais tawm
Txhua qhov xwm txheej yuav tsum muaj qib sib txawv ntawm kev tiv thaiv kev tsim qauv. Piv txwv li, kev tiv thaiv ib qho cuab yeej sib txawv heev los ntawm kev ruaj khov rau tag nrho RF kuaj teeb.
Ib qho yuam kev uas kuv tau pom hauv cov haujlwm ua lag luam yog xav tias "txhua qhov chaw hlau" yuav daws txhua yam teeb meem cuam tshuam. Nyob rau hauv qhov tseeb, tus cwj pwm ntawm lub system nyob ntawm ntau zaus thiab interface tsim.
Txhais qhov zaus ntau zaus thaum ntxov
Ntau zaus yog ib qho tseem ceeb tshaj plaws hauv kev xaiv Faraday tawb enclosure.
Tsawg-ntau zaus cuam tshuam ua haujlwm zoo li thaj chaw zoo li qub thiab feem ntau yooj yim los tswj. High-frequency RF signals coj tus cwj pwm zoo li nthwv dej, uas txhais tau tias lawv tuaj yeem nkag mus rau qhov sib txawv me me, seams, thiab cov qauv tsim tsis zoo.
Hauv ib txoj haujlwm RF cais kuv tau ua haujlwm, lub kaw lus ua tau zoo ntawm cov zaus qis dua tab sis ua tsis tiav thaum lub sijhawm ntsuas siab - zaus. Qhov teeb meem tsis yog cov khoom zoo- nws yog qhov tsis sib xws me me ntawm cov ntsiab lus nkag cable uas tau dhau los ua qhov tseem ceeb ntawm cov zaus ntau dua.
Qhov no yog vim li cas ntau zaus yuav tsum nco ntsoov qhia kev xaiv cov ntaub thaiv npog, tsis yog cov ntaub thaiv npog dav dav.
Txheeb xyuas cov kev xav tau ntawm kev tiv thaiv kev ua tau zoo
Tsis yog txhua daim ntawv thov yuav tsum muaj kev tiv thaiv siab tshaj plaws.
Hauv kev lag luam ib puag ncig, qhov yuav tsum tau muaj kev tiv thaiv qib nyob ntawm seb cov cuab yeej siv tau zoo npaum li cas thiab qhov hnyav npaum li cas nyob ib puag ncig electromagnetic nrov.
Hauv cov chaw kuaj mob, kev rov ua dua thiab ntsuas kev ruaj ntseg feem ntau muaj teeb meem ntau dua li qhov muaj nuj nqis attenuation.
Los ntawm kev ua tau zoo, dhau - qhia txog kev tiv thaiv kev ua tau zoo ua rau tus nqi tsis tsim nyog, thaum nyob rau hauv - qhia txog ua rau tus cwj pwm tsis ruaj khov thiab rov daws teeb meem.
Lub ntsiab lus sib npaug yog ib txwm ua tau zoo dua li kev sib tw siab tshaj plaws theoretical shielding tooj.
Them rau cov qauv, tsis yog cov khoom siv xwb
Ib qho kev nkag siab tsis zoo tshaj plaws hauv Faraday xaiv tawb yog tsom ntau dhau ntawm cov khoom siv hauv tsev.
Hauv EMC engineering tiag tiag, kev ua tau zoo yog txiav txim siab los ntawm tag nrho cov qauv, suav nrog:
l vaj huam sib luag txuas ntxiv thiab kev sib txuas zoo
l qhov rooj tiv tauj tsim
l cable nkag tiv thaiv txoj kev
l grounding architecture
l mechanical stability dhau lub sijhawm
Kuv tau pom steel enclosures ua tau zoo dua -cov ntaub ntawv conductivity tsuas yog vim hais tias cov neeg kho tshuab tsim kom ntseeg tau zoo hluav taws xob txuas ntxiv nyob rau hauv tag nrho cov interfaces.
Qhov no yog vim li cas cov kws paub txog engineers kho kev tiv thaiv raws li qhov system, tsis yog kev xaiv cov khoom siv.
Cable nkag thiab Interface Design yog qhov tseem ceeb
Nyob rau hauv yuav luag txhua qhov tiag - ntiaj teb no tsis ua hauj lwm rooj plaub, lub weakest point tsis yog lub enclosure phab ntsa - nws yog interfaces.
Cov ntsiab lus nkag cable yog qhov tseem ceeb tshwj xeeb vim tias lawv tuaj yeem yooj yim dhau los ua RF xau txoj hauv kev yog tias tsis tsim nyog.
Hauv ib txoj haujlwm EMC kev lag luam, ib lub kaw lus tau dhau qhov kev sim kaw thawj zaug tab sis ua tsis tiav thaum lub sij hawm tag nrho kev koom ua ke. Qhov ua rau yog ib lub teeb liab uas tsis tau lim dej uas hla kev tiv thaiv kev ncaj ncees. Thaum kho, qhov system ua haujlwm ruaj khov tam sim ntawd.
Qhov no yog ib qho piv txwv ntawm yog vim li cas interface engineering yog ib qho tseem ceeb li enclosure tsim.
Xav txog Mechanical and Environmental Conditions
Faraday cage enclosures siv nyob rau hauv kev lag luam ib puag ncig yuav tsum tiv taus ntau tshaj li cov kev cai electromagnetic.
Lawv feem ntau raug rau:
l rov nkag mus
l vibration nyob rau hauv industrial chaw
l kub variations cuam tshuam cov khoom expansion
l ntev - lub sij hawm coj kev sib cuag
Nyob rau tib lub sijhawm, cov xwm txheej no tuaj yeem txo qis kev tiv thaiv kev ua haujlwm yog tias tsis suav nrog hauv theem tsim.
Los ntawm kev paub dhau los, kev ruaj ntseg ntev ntev yog feem ntau yog qhov kev sib tw tiag tiag dua li kev sim ua raws li thawj zaug.
Industrial vs Laboratory Selection Logic
Hauv cov ntawv thov kev lag luam, Faraday cage enclosures feem ntau yog xaiv rau kev ua haujlwm ntev, kev sib koom ua ke yooj yim, thiab cov nqi siv tau. Lawv feem ntau yog ib feem ntawm cov tshuab tsim khoom lossis cov tswv yim tiv thaiv cov cuab yeej.
Hauv qhov chaw kuaj mob, qhov tseem ceeb hloov mus rau qhov ntsuas qhov tseeb, teeb liab ruaj khov, thiab rov ua dua. Txawm tias me me electromagnetic inconsistencies tuaj yeem cuam tshuam cov txiaj ntsig.
Hauv kev xyaum, qhov sib txawv no feem ntau txiav txim siab seb tus txheej txheem kaw lossis qhov tseeb dua -engineered shielding system yog yuav tsum tau.
Kev pom tiag tiag Engineering
Los ntawm xyoo ntawm EMC thiab RF thaiv cov phiaj xwm, ib qho qauv zoo ib yam sawv tawm: feem ntau xaiv yuam kev tshwm sim ua ntej engineering pib.
Nyob rau hauv ib qhov project xa los ntawm Wuxi Anxin Shielding Equipment Co., Ltd., thawj qhov kev xaiv enclosure yog ua raws li cov kev xav ntawm kev tiv thaiv dav dav. Thaum lub kaw lus ua haujlwm rau kev sib cais yooj yim, nws tau tawm tsam nyob rau hauv siab - zaus kuaj mob.
Tom qab tshuaj xyuas cov kev xav tau ntawm daim ntawv thov, kev txhim kho tau tsim hauv kev tsim interface, kev kho kab thaiv kab mob, thiab kev ua haujlwm txuas ntxiv. Qhov tshwm sim yog qhov ruaj khov RF ib puag ncig tsim nyog rau kev sim thiab ua haujlwm zoo ib yam.
Qhov kev hloov kho no muaj ntau heev hauv cov phiaj xwm kev lag luam tiag tiag, qhov twg cov kev xav thaum ntxov feem ntau txawv ntawm tus cwj pwm electromagnetic tiag tiag.
Xaiv txoj cai Faraday tawb enclosure tsis yog hais txog kev xaiv qhov siab tshaj plaws specification lossis qhov kev xaiv kim tshaj plaws. Nws yog hais txog kev sib piv cov txheej txheem enclosure rau qhov tiag electromagnetic ib puag ncig thiab daim ntawv thov yuav tsum tau.
Los ntawm kev paub txog kev tsim vaj tsev, cov haujlwm ua tiav tau ua raws li ib txoj hauv kev: txhais cov teeb meem EMI / RF ua ntej, tom qab ntawd tsim cov txheej txheem tiv thaiv ib puag ncig nws.
Nyob rau hauv niaj hnub kev lag luam thiab chaw kuaj ib puag ncig, txhim khu kev qha shielding kev ua tau zoo nyob ntawm tsawg dua nyob rau hauv lub enclosure nws tus kheej thiab ntau npaum li cas nws yog matched rau nws tiag tiag kev khiav hauj lwm tej yam kev mob.
