I. Mwachidule
Zinthu zitatu za kusokoneza ma elekitiroma ndi gwero la kusokonezedwa, njira yopatsira zosokoneza, cholandirira chosokoneza, EMC mozungulira nkhanizi pakufufuza.Njira zochepetsera zosokoneza kwambiri ndizotchinjiriza, kusefa, kuyika pansi.Amagwiritsidwa ntchito makamaka kudula njira yopatsirana yosokoneza.
Lero tikukamba za kusefa kwa EMC, kukonzanso kwa EMC mu njira zosefera zomwe zimagwiritsidwa ntchito nthawi zambiri zimakhala ndi njira zosiyanasiyana, zotsatirazi tikhala tikutengera mitundu iyi ya njira zosefera, kusanthula zinthu zomwe zimafunikira chidwi pakagwiritsidwe ntchito.
II.Kusefa kwa maginito
Kusefa kwa maginito ndi kudzera mu kuyambitsa zigawo za maginito mozungulira, kuletsa kufalikira kwa phokoso lapamwamba kwambiri ndi kusinkhasinkha, potero kuchepetsa kusokoneza kwa electromagnetic.Zomwe zimagwiritsidwa ntchito ndi maginito zimaphatikizapo mphete za maginito, maginito a bar, ma coils, etc.
(1) Kuchuluka kwa ma frequency: Mawonekedwe afupipafupi a zosefera maginito amachepetsa kuchuluka kwa kusokoneza komwe amatha kupondereza.Chifukwa chake, posankha maginito fyuluta, ndikofunikira kudziwa kuchuluka kwa ma frequency omwe mukufuna ndikusankha fyuluta yoyenera.
(2) Mtundu wa Zosefera: Mitundu yosiyanasiyana ya zosefera maginito zimagwira ntchito mosiyanasiyana pamitundu yosiyanasiyana ya zosokoneza.Mwachitsanzo, zosefera za maginito zosefera nthawi zambiri zimakhala zoyenera kugwero laphokoso lapamwamba, pomwe zosefera za ma coil ndizoyenera kugwero laphokoso lotsika.Choncho, posankha maginito fyuluta, makhalidwe a gwero losokoneza ndi makhalidwe a fyuluta ayenera kuganiziridwa.
(3) Malo oyika: Zosefera maginito ziyenera kukhazikitsidwa pakati pa gwero losokoneza ndi zida zomwe zakhudzidwa kuti zithetse bwino kusokoneza.Komabe, ndikofunikira kupewa kuyika fyuluta ya maginito pamalo otentha kwambiri kapena malo ogwedezeka kwambiri kuti zitsimikizire kudalirika kwake komanso kukhazikika.
(4) Kulumikizana kwapansi: Kulumikizana kwapansi kumakhudza kwambiri mphamvu ya zosefera maginito.Kulumikiza bwino waya wapadziko lapansi kumatha kupititsa patsogolo magwiridwe antchito a fyuluta, kuwongolera kupondereza ndikuchepetsa kusokoneza kwamagetsi.
III.Capacitive fyuluta
Fyuluta ya capacitive: Poyambitsa ma capacitive zinthu mudera, ma frequency apamwamba amawongolera pansi kuti achepetse ma radiation ndi kufalikira kwa kusokoneza kwamagetsi.
(1) Mitundu ya ma capacitor: Pali mitundu yosiyanasiyana ya ma capacitor, monga tantalum electrolytic capacitors, aluminium electrolytic capacitors ndi ceramic capacitors.Mitundu yosiyanasiyana ya ma capacitor imakhala ndi magwiridwe antchito osiyanasiyana pama frequency osiyanasiyana, chifukwa chake muyenera kusankha capacitor yoyenera malinga ndi momwe zilili.
(2) Mafupipafupi osiyanasiyana: Mawonekedwe afupipafupi a zosefera za capacitive amachepetsa kuchuluka kwa kusokoneza komwe amatha kupondereza.Chifukwa chake, posankha zosefera za capacitive, ndikofunikira kudziwa ma frequency ofunikira ndikusankha zosefera zoyenera.
(3) Kusankhidwa kwa mtengo wa capacitance: Mtengo wa capacitance wa capacitor umakhudza mwachindunji zotsatira zake zosefera, kukula kwa mtengo wa capacitance, kumapangitsanso zotsatira zosefera.Koma musasankhe capacitance yaikulu kwambiri, kuti musakhale ndi zotsatira zoipa pa ntchito yabwino ya dera.
(4) Makhalidwe a kutentha: mphamvu ya capacitor idzasintha ndi kusintha kwa kutentha.M'malo otentha kwambiri, mphamvu ya capacitor idzachepa, motero imakhudza zotsatira zake zosefera.Choncho, posankha ma capacitors, m'pofunika kuganizira za kutentha kwawo ndikusankha ma capacitors okhala ndi kutentha kwabwino.
IV.Zosefera za impedance
Fyuluta ya Impedance: Poyambitsa zigawo za impedance mu dera, derali limakhala ndi cholepheretsa kwambiri ku chizindikiro cha pafupipafupi, motero kuchepetsa kapena kuthetsa kusokoneza ndi phokoso.Zigawo zodziwika bwino za impedance zimaphatikizapo ma inductors, ma transfoma, ndi zina.
(1) Kusiyanasiyana kwa ma frequency: Mawonekedwe afupipafupi a zosefera za impedance amachepetsa kuchuluka kwa ma frequency osokoneza omwe amatha kupondereza bwino.Chifukwa chake, posankha zosefera za impedance, m'pofunika kudziwa kuchuluka kwa ma frequency omwe mukufuna ndikusankha fyuluta yoyenera.
(2) Mtundu wa Impedance: Mitundu yosiyanasiyana ya impedance imakhala ndi machitidwe osiyanasiyana amitundu yosiyanasiyana yosokoneza.Mwachitsanzo, ma inductors ndi abwino kwa magwero a phokoso lapamwamba, pamene ma transformer ndi abwino kwambiri kwa magwero a phokoso otsika.Chifukwa chake, posankha zosefera za impedance, ndikofunikira kusankha manambala oyenera malinga ndi mawonekedwe a gwero losokoneza komanso mawonekedwe a fyuluta.
(3) Kufananiza kwa impedance: Zotsatira za zosefera za impedance zimakhudzidwa ndi kufanana kwa impedance.Ngati impedance sichikufanana, ndiye kuti zotsatira za fyuluta zidzachepetsedwa kwambiri.Chifukwa chake, popanga ndikuyika zosefera za impedance, ndikofunikira kuwonetsetsa kuti zosokoneza zikugwirizana komanso kuti kulumikizana koyenera kumagwiritsidwa ntchito.
(4) Malo oyika: Zosefera za impedance ziyenera kukhazikitsidwa pakati pa gwero losokoneza ndi zida zomwe zakhudzidwa kuti zithetse bwino kusokoneza.Komabe, ndikofunikira kupewa kuyika zosefera za impedance pamalo otentha kwambiri kapena kugwedezeka kwakukulu kuti zitsimikizire kudalirika kwake komanso kukhazikika.
(5) Ground Connection: Kulumikizana kwapansi kokwanira ndiye chinsinsi chowonetsetsa kuti zosefera za impedance zikuyenda bwino.Kulumikiza moyenera waya wapadziko lapansi kumatha kupititsa patsogolo magwiridwe antchito a impedance, kuwongolera kupondereza ndikuchepetsa kusokoneza kwamagetsi.
V. Band Pass Sefa
Kusefa kwa band-pass kumalola kuti ma siginecha azitha kudutsamo pomwe akupondereza ma siginecha amitundu ina.
(1) Mafupipafupi apakati: Mafupipafupi apakati a fyuluta ya band-pass ndi ma frequency a siginecha kuti adutsidwe, chifukwa chake ndikofunikira kusankha ma frequency oyenera apakati.
(2) Bandwidth: Bandwidth ya fyuluta ya bandpass imatanthawuza kuchuluka kwa ma frequency a siginecha kuti idutsidwe, chifukwa chake ndikofunikira kusankha bandwidth yoyenera.
(3) Passband ndi Stopband: Chiphaso cha fyuluta ya bandpass chimatanthawuza maulendo afupipafupi a chizindikiro chomwe chimadutsa, pamene choyimitsa chimatanthawuza mafupipafupi a chizindikiro chomwe chimaponderezedwa.Posankha fyuluta, m'pofunika kusankha passband yoyenera ndi ma stopband ranges malinga ndi zofunika ntchito.
(4) Zosefera zamtundu: Pali mitundu yosiyanasiyana ya zosefera za bandpass, monga zosefera zachiwiri, zosefera za Butterworth, zosefera za Chebyshev, etc. Zosefera zamitundu yosiyanasiyana zimakhala ndi mawonekedwe osiyanasiyana.Zosefera zamitundu yosiyanasiyana zimakhala ndi magwiridwe antchito osiyanasiyana, chifukwa chake ndikofunikira kusankha mtundu woyenera wa zosefera molingana ndi momwe mungagwiritsire ntchito.
(5) Kuyankha pafupipafupi: Kuyankha pafupipafupi kwa fyuluta ya bandpass kumakhudza kwambiri magwiridwe ake.Pofuna kuonetsetsa kuti chizindikirocho chikuyenda bwino, m'pofunika kuonetsetsa kuti kuyankha kwafupipafupi kumakhala kosalekeza momwe zingathere ndipo palibe chodabwitsa cha resonance pakupanga.
(6) Kukhazikika: Zosefera za band-pass ziyenera kukhala zokhazikika, chifukwa chake ndikofunikira kusankha zida zapamwamba komanso masanjidwe oyenera adera kuti zitsimikizire kukhazikika kwa zero kuwoloka pafupipafupi komanso matalikidwe.
(7) Kusintha kwa kutentha: Kuchita kwa zosefera za band-pass kudzayenda chifukwa cha kusintha kwa kutentha kozungulira.
VI.Chidule
Kusefa ndi njira imodzi yomwe timagwiritsa ntchito kuthetsa mavuto a EMC.Kuti tithane ndi mavuto a EMC, tiyenera kumvetsetsa bwino lomwe vutoli, kupanga mapulani, kukhazikitsa mapulogalamu, kutsimikizira zotsatira zake, kukonza ndikulimbitsa kasamalidwe mosalekeza.Ndi njira iyi yokha yomwe tingathetsere bwino mavuto a EMC ndikuwongolera magwiridwe antchito a EMC.
Zhejiang NeoDen Technology Co., LTD., yomwe idakhazikitsidwa mu 2010, ndi katswiri wopanga makina opangira ma SMT ndi malo, uvuni wa reflow, makina osindikizira a stencil, chingwe chopangira SMT ndi Zida zina za SMT.Tili ndi gulu lathu la R & D ndi fakitale yathu, kugwiritsa ntchito mwayi wathu olemera odziwa R&D, kupanga ophunzitsidwa bwino, adapambana mbiri yabwino kuchokera kwamakasitomala padziko lonse lapansi.
Timakhulupirira kuti anthu abwino ndi othandizana nawo amapangitsa NeoDen kukhala kampani yabwino komanso kuti kudzipereka kwathu ku Innovation, Diversity and Sustainability kumawonetsetsa kuti makina a SMT azitha kupezeka kwa aliyense wokonda zosangalatsa kulikonse.
Nthawi yotumiza: Aug-09-2023