Ma taqaan shaandhaynta EMC?

I. Dulmar

Saddexda walxood ee faragelinta korantada ayaa ah isha faragelinta, dariiqa gudbinta faragelinta, qaataha faragelinta, EMC oo ku wareegsan arrimahan cilmi-baarista.Farsamooyinka xakamaynta faragelinta aasaasiga ah ee aasaasiga ah waa gaashaanka, shaandhaynta, dhulka.Inta badan waxaa loo isticmaalaa in lagu gooyo dariiqa gudbinta ee faragelinta.

Maanta waxaan ka hadlaynaa shaandhaynta EMC, hagaajinta EMC ee hababka shaandhaynta ee sida caadiga ah loo isticmaalo waxay leeyihiin habab kala duwan, kuwan soo socda waxaan ku salaysnaan doonaa noocyadan hababka shaandhaynta, falanqaynta arrimaha u baahan fiiro gaar ah habka isticmaalka.

II.shaandhaynta magnetic

Shaandheynta magnetic waa iyada oo la soo bandhigayo qaybaha magnetic ee wareegga, joojiya faafinta buuqa sare ee dhawaaqa iyo milicsiga, taas oo yaraynaysa faragelinta korantada.Qaybaha birlabeedka caadiga ah waxaa ka mid ah giraangiraha magnetic, bir magnets, gariiradda, iwm.

(1) Xaddiga soo noqnoqda: Sifooyinka soo noqnoqda ee filtarrada magnetic waxay xaddidaan inta jeer ee soo noqnoqda faragelinta kuwaas oo ay si wax ku ool ah u xakameyn karaan.Sidaa darteed, marka la dooranayo filter magnetic, waxaa lagama maarmaan ah in la go'aamiyo inta jeer ee la rabo ee xakamaynta oo dooro shaandhada ku habboon.

(2) Nooca shaandhaynta: Noocyada kala duwan ee filtarrada magnetic waxay u qabtaan si kala duwan noocyada kala duwan ee ilaha faragelinta.Tusaale ahaan, filtarrada loop magnet-ka ayaa inta badan ku habboon ilaha qaylada soo noqnoqda, halka filtarrada gariiradda ay aad ugu habboon yihiin ilaha qaylada-soo noqnoqda.Sidaa darteed, marka la dooranayo filter magnetic, sifooyinka isha faragelinta iyo sifooyinka shaandhada waxay u baahan yihiin in la tixgeliyo.

(3) Goobta Rakibaadda: Shaandhooyinka magnetic waxay u baahan yihiin in lagu rakibo inta u dhaxaysa isha faragelinta iyo qalabka ay saamaysay si si wax ku ool ah loo shaandheeyo faragelinta.Si kastaba ha ahaatee, waa lagama maarmaan in la iska ilaaliyo in la geliyo shaandhada magnetic heerkul sare ama jawi gariir sare si loo hubiyo in la isku halleyn karo iyo xasilloonida.

(4) Isku xirka dhulka: Xiriirka dhulka ayaa saameyn muhiim ah ku leh waxtarka filtarrada magnetic.Si sax ah isku xirka fiilada dhulka waxay kor u qaadi kartaa waxqabadka shaandhada, hagaajinta saameynta xakamaynta waxayna yareyn kartaa faragelinta elektromagnetic.

III.Shaandheeyaha Capacitive

Filter Capacitive: Iyada oo la soo bandhigayo curiyeyaasha awoodda wareegga wareegga, xawaaraha-sare ee hadda jira ayaa lagu hagayaa dhulka si loo yareeyo shucaaca iyo faafinta faragelinta korantada.

(1) Noocyada capacitors: Waxaa jira noocyo kala duwan oo capacitors ah, sida tantalum electrolytic capacitors, aluminium electrolytic capacitors iyo capacitors dhoobada.Noocyada kala duwan ee capacitors waxay leeyihiin waxqabadyo kala duwan oo kala duwan oo kala duwan oo soo noqnoqda, markaa waxaad u baahan tahay inaad doorato capacitor sax ah iyadoo loo eegayo xaalada gaarka ah.

(2) Xaddiga soo noqnoqda: Sifooyinka soo noqnoqda ee filtarrada awoodda leh ayaa xaddidaya faragelinta inta jeer ee ay si wax ku ool ah u xakameyn karaan.Sidaa darteed, marka la dooranayo filtarrada capacitive, waxaa lagama maarmaan ah in la go'aamiyo qiyaasta soo noqnoqda xakamaynta loo baahan yahay oo dooro shaandhada ku habboon.

(3) Xulashada qiimaha capacitance: Qiimaha capacitance ee capacitor-ku wuxuu si toos ah u saameeyaa saameyntiisa shaandhaynta, weynaanta qiimaha capacitance, ayaa si fiican u saameynaya shaandhaynta.Laakiin ha dooran awood aad u weyn, si aanay saameyn xun ugu yeelan hawlgalka caadiga ah ee wareegga.

(4) Sifooyinka heerkulka: awoodda capacitor-ku waxay isbedeshaa isbeddelka heerkulka.Deegaanka heerkulkiisu sarreeyo, awoodda capacitor-ku way yaraan doontaa, taas oo saamaynaysa saamaynta shaandhaynta.Sidaa darteed, marka la dooranayo capacitors, waxaa lagama maarmaan ah in la tixgeliyo sifooyinka heerkulka iyo dooro capacitors leh xasilloonida heerkulka wanaagsan.

IV.Filterka impedance

Filterka impedance: Marka la soo bandhigo qaybaha impedance ee wareegga, wareeggu wuxuu leeyahay xannibaad sare oo calaamad u ah soo noqnoqoshada gaarka ah, sidaas darteed yaraynta ama baabi'inta faragelinta iyo buuqa.Qaybaha impedance caadiga ah waxaa ka mid ah inductors, transformers, iwm.

(1) Inta jeer ee soo noqnoqda: Sifooyinka soo noqnoqda ee filtarrada impedance ayaa xaddidaya inta jeer ee faragelinta ay si wax ku ool ah u xakameyn karaan.Sidaa darteed, marka la dooranayo shaandhada impedance, waxaa lagama maarmaan ah in la go'aamiyo inta jeer ee la rabo ee xakamaynta oo dooro shaandhada ku habboon.

(2) Nooca impedance: Noocyada kala duwan ee impedance waxay leeyihiin waxqabadyo kala duwan oo loogu talagalay noocyada kala duwan ee ilaha faragelinta.Tusaale ahaan, inductors waxay ku habboon yihiin ilaha qaylada-soo noqnoqda, halka transformers ay aad ugu habboon yihiin ilaha qaylada hoose.Sidaa darteed, marka la dooranayo filtarrada impedance, waxaa lagama maarmaan ah in la sameeyo doorashada tirooyinka ku habboon iyadoo loo eegayo sifooyinka isha faragelinta iyo sifooyinka shaandhada.

(3) Isbarbardhigga isbarbardhigga: Saamaynta filtarrada impedance waxaa saameeya isbarbardhigga isbarbardhigga.Haddii impedance uusan u dhigmin, markaa saameynta filtarka ayaa si weyn loo dhimi doonaa.Sidaa darteed, marka la naqshadeynayo oo lagu rakibayo filtarrada impedance, waxaa lagama maarmaan ah in la hubiyo in impedance la siman yahay iyo in la isticmaalo isku xirnaanta ku habboon.

(4) Goobta Rakibaadda: Shaandhooyinka impedance waxay u baahan yihiin in lagu rakibo inta u dhaxaysa isha faragelinta iyo qalabka ay saamaysay si loo sifeeyo faragelinta.Si kastaba ha ahaatee, waa lagama maarmaan in laga fogaado in la geliyo filtarka impedance heerkul sare ama jawi gariir sare si loo hubiyo in la isku halleyn karo iyo xasilloonida.

(5) Isku xirka dhulka: Isku xirka dhulka oo ku filan waa furaha si loo hubiyo waxqabadka filtarrada impedance.Si sax ah isku xirka fiilada dhulka waxay kor u qaadi kartaa waxqabadka filtarka impedance, hagaajinta saameynta xakamaynta waxayna yareyn kartaa faragelinta elektromagnetic.

V. Shaandhaynta Gudbinta Band

Shaandhaynta baska-baasku waxay u ogolaataa calaamadaha kala duwanaanshaha soo noqnoqda ee gaarka ah inay dhex maraan iyadoo la xakameynayo calaamadaha kala duwanaanshaha soo noqnoqda.

(1) Inta jeer ee xarunta: Inta jeer ee xarunta shaandheynta band-pass waa inta jeer ee calaamada la gudbinayo, markaa waa lagama maarmaan in la doorto inta jeer ee xarunta ku habboon.

(2) Bandwidth: Baaxadda shaandhada bandpass ayaa qeexaysa tirada soo noqnoqda ee calaamada la gudbinayo, sidaas darteed waa lagama maarmaan in la doorto xajmiyeed ku habboon.

(3) Baasaboorka iyo Stopband: Baasabka filter-ka bandpass ayaa qeexaya inta jeer ee calaamaduhu dhex maraan, halka joogsiga joogsiga uu qeexayo inta jeer ee signalka la xakameynayo.Markaad dooranayso shaandhada, waxaa lagama maarmaan ah in la doorto baaska ku habboon iyo xadka joogsiga iyadoo loo eegayo shuruudaha codsiga.

(4) Nooca shaandhada: Waxaa jira noocyo kala duwan oo filtarrada bandpass ah, sida filtarrada-dalabka labaad, filtarrada Butterworth, filtarrada Chebyshev, iwm. Noocyada kala duwan ee filtarrada waxay leeyihiin astaamo kala duwan.Noocyada kala duwan ee filtarrada waxay leeyihiin waxqabadyo kala duwan, markaa waa lagama maarmaan in la doorto nooca shaandhada ku habboon iyadoo loo eegayo xaaladda codsiga gaarka ah.

(5) Jawaab celinta soo noqnoqda: Jawaabta soo noqnoqda ee shaandhada bandpass waxay saameyn muhiim ah ku leedahay waxqabadkeeda.Si loo hubiyo tayada gudbinta ee calaamadda, waxaa lagama maarmaan ah in la hubiyo in jawaabta soo noqnoqda ay tahay mid siman intii suurtagal ah oo aysan jirin wax ifafaale ah oo aan loo baahnayn oo naqshadeynta ah.

(6) Xasilloonida: Shaandhooyinka baasaska leh waxay u baahan yihiin inay ilaaliyaan waxqabadka xasilloon, markaa waa lagama maarmaan in la doorto qaybo tayo sare leh iyo qaabaynta wareegga habboon si loo hubiyo xasilloonida inta jeer ee is-goysyada eber iyo xajmiga.

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VI.Soo koobid

Shaandhaynta waa mid ka mid ah hababka caadiga ah ee aan u isticmaalno si loo xalliyo dhibaatooyinka EMC.Si loo xalliyo mashaakilaadka EMC si wanaagsan, waxaan u baahanahay inaan si buuxda u fahanno dhibaatada, samayno qorshooyin, hirgaliyo barnaamijyo, xaqiijino saamaynta, si joogto ah u wanaajinaya oo loo xoojinayo maamulka.Sidan oo kaliya ayaan si wax ku ool ah u xallin karnaa dhibaatooyinka EMC oo aan wanaajin karnaa waxqabadka EMC ee nidaamka.

Zhejiang NeoDen Technology Co., LTD., oo la aasaasay 2010, waa soo-saare xirfad leh oo ku takhasusay SMT pick and place machine, foornada dib u soo celinta, mashiinka daabacaadda stencil, line-soo-saarka SMT iyo Alaabooyinka kale ee SMT.Waxaan leenahay kooxdayada R & D iyo warshad u gaar ah, anagoo ka faa'iidaysanayna R&D qani ah oo noo gaar ah, wax soo saarka si fiican u tababaran, kasbadeen sumcad weyn macaamiisha adduunka oo dhan.

Waxaan aaminsanahay in dadka waaweyn iyo la-hawlgalayaasheeda ay NeoDen ka dhigaan shirkad weyn iyo in ballanqaadkeenna hal-abuurnimo, Kala duwanaanshiyaha iyo Joogteynta ay hubiso in Automation-ka SMT uu heli karo qof kasta oo xiiseeya meel kasta.