Nheyo uye Chizvarwa cheElectromagnetic Kupindira EMI

Nheyo uye Chizvarwa cheElectromagnetic Kupindira EMI

Tisati tatsanangura musimboti wekukanganiswa kwemagetsi, isu tava kunzwisisa zvinokonzeresa EMI:

1. Zvikonzero zveEMI

Mhando dzakasiyana dzekupindira kwemagetsi ndizvo zvikonzero zvikuru zvinokanganisa kuenderana kwemidziyo yemagetsi.Naizvozvo, kunzwisisa chikonzero chekukanganiswa kwemagetsi chinhu chakakosha chinodiwa kudzvanyirira kukanganiswa kwemagetsi uye kugadzirisa kuenderana kwemagetsi ezvigadzirwa zvemagetsi.Chizvarwa chekukanganiswa kwe electromagnetic chinogona kukamurwa kuita:

Kupindira kwemukati Mutual kupindira pakati pemukati zvemagetsi zvikamu

1) Simba rekushanda rinogadzira kukanganiswa kunokonzerwa nekudonha kuburikidza nekugoverwa kwemagetsi ekupa uye insulation kuramba kwetambo.

2) Chiratidzo chinosanganiswa nemumwe kuburikidza nekukanganiswa kwewaya yepasi, magetsi uye waya yekutumira, kana pesvedzero inokonzerwa nekuwirirana inductance pakati petambo.

3) Zvimwe zvikamu mukati memidziyo kana system inoburitsa kupisa, izvo zvinokanganisa kugadzikana kwezvikamu pachazvo uye zvimwe zvikamu.

4) Magnetic field uye magetsi anogadzirwa nepamusoro-simba uye high-point-voltage zvikamu zvinokanganisa kupindira kunokonzerwa nezvimwe zvikamu kuburikidza nekubatanidza.

Kupindira kwekunze - pesvedzero yezvimwe zvinhu kunze kwemidziyo yemagetsi kana masisitimu pamaseketi, zvishandiso kana masisitimu.

1) Ekunze yakakwira voltage uye magetsi emagetsi zvinokanganisa maseketi emagetsi, zvishandiso kana masisitimu kuburikidza nekudonha kwekudzivirira.

2) External high-power equipment inogadzira simba remagineti munzvimbo, iro rinokanganisa magetsi emagetsi, midziyo kana masisitimu kuburikidza nekubatanidza inductance coupling.

3) Space electromagnetic kupindira kune zvemagetsi maseketi kana masisitimu.

4) Kupisa kwenzvimbo yekushanda hakuna kugadzikana, kunokonzera kukanganisa kunokonzerwa nekuchinja kwemiganhu yemagetsi emagetsi, zvishandiso kana zvikamu zvemukati zvegadziriro.

2. Nzira yekutumira ye electromagnetic interference

Kana kuwanda kwenzvimbo yekuvhiringidza kwakakwira, uye kureba kwechiratidzo chekuvhiringidza kuri kudiki pane saizi yechimiro chechinhu chakakanganisika, chiratidzo chekupindira chinogona kutorwa sendima yemwaranzi, inopenya simba remagetsi muchimiro chendege electromagnetic waves. uye inopinda munzira yechinhu chakanganiswa.Muchimiro chekubatanidza uye kubatanidza, kuburikidza neiyo insulating dielectric, kubatanidzwa kweiyo common impedance inopinda mukati yakakanganiswa system.Kupindira zviratidzo zvinogona kupinda muhurongwa kuburikidza nekufambisa kwakananga.

3. Matanho ekuvandudza electromagnetic kuenderana

Kuvandudza kuenderana kwemagetsi ezvigadzirwa zvemagetsi, kugadzika, kudzivirira uye kusefa ndiyo nzira dzekutanga kudzvanyirira EMI.

1) Grounding

Grounding ndiyo nzira yemagetsi ekufambisa pakati pemagetsi nemagetsi muhurongwa kuenda kunzvimbo yekutarisa pasi.Pamusoro pekupa nzvimbo yekudzivirira yekudzivirira yemidziyo, pasi rinopawo chiratidzo chechiratidzo chinodiwa pakushanda kwemidziyo.Iyo yakanakira pasi ndege imuviri wenyama ine zero inogoneka uye zero impedance, iyo inogona kushandiswa senge rengedzo yezvese chiratidzo chekuongorora mudunhu, uye chero chiratidzo chinopindira chinopfuura nepachiri haiburitse kudonha kwemagetsi.Zvisinei, ndege yepasi yakanaka haipo, iyo inoda kuti tifunge uye tiongorore kugoverwa kwepasi rinogona kuitika, kuitisa dhizaini yepasi uye tsvakurudzo, nekutsvaga nzvimbo yakakodzera yepasi.Nzira dzekudzikisa dzinogona kukamurwa kuita: ivhu rinoyangarara, imwe-poinzi ivhu, yakawanda-nzvimbo ivhu, uye yakasanganiswa ivhu.Kune redunhu sisitimu, pane zvingasarudzwa: dunhu repasi, simba rekuisa pasi, uye chiratidzo chepasi.

2) kudzivirira

Shielding ndeye kushandisa yakavharwa pamusoro pe conductive kana electromagnet kuparadzanisa nzvimbo dzemukati nekunze kwemagetsi.Kunyanya dzvanyirira kukanganiswa kwemwaranzi munzvimbo.Yakakamurwa kuita electromagnetic shielding, electric field shielding uye magnetic field shielding.

Iyo shielding dhizaini inogona kunangwa kune ese ari kupindira sosi uye chinhu chakakanganiswa.Kune iyo yekupindira sosi, dhizaini yechikamu chekudzivirira inogona kuderedza kukanganisa kune mamwe maturusi akapoteredzwa;kune chinhu chakakanganisika, inogona kuderedza kukanganiswa kwekunze kwemagetsi mafungu emagetsi pamidziyo.

Active shielding: Isa iyo yekukanganisa sosi mukati memuviri unodzivirira kudzivirira magetsi emagetsi uye masaini ekuvhiringidza kubva pakudonha achipinda munzvimbo yekunze.

Passive shielding: kuisa midziyo inonzwisisika mumuviri unodzivirira kuitira kuti isakanganiswe nekukanganiswa kwekunze.

3) Kusefa

Chirevo chekusefa zvinoreva nzira yekuburitsa masaini anobatsira kubva kumasaini ekutanga akasanganiswa neruzha kana kukanganisa.EMI Mafiritainhengo dzekuwana kusefa.

Muchokwadi, kana mudziyo uchishanda, unoburitsawo ruzha rwakasiyana.Kuchinja kwemagetsi ndiko kwakasimba kupindira sosi, uye iyo EMI siginecha inoburitsa kwete chete inotora yakafara frequency renji, asi zvakare ine yakakura amplitude.Nekuparidzirwa kwechiratidzo, mhere-mhere iyi inopesana nezvikamu zvinotevera-nhanho, uye kuunganidza kwekuvhiringidza kwakadaro kunogona kupedzisira kutungamirira kukushanda kusina kunaka kwedunhu rose.Tichifunga kuti chiratidzo chekubuda chechigadzirwa chine ruzha rukuru uye kupindira kuri pachena kune yakaderera-level mudziyo inosefa kuti isefa kunze kwechiratidzo cheruzha, kupindira kune yakaderera-chikamu mudziyo kuchaderedzwa, uye sisitimu ichashanda yakadzikama.

DOREXSEMI indasitiri mutungamiri

Kana iwe uchida inoshanda EMI dziviriro, DOREXS inopa durable uye yakavimbika EMI mafirita kune yega application.Mafirita edu akakodzera kushandiswa kwehunyanzvi munzvimbo dzemauto uye zvekurapa, pamwe nekushandiswa kwekugara uye maindasitiri.Kune maapplication anoda mhinduro yetsika, timu yedu nyanzvi inogona kugadzira EMI sefa kuti isangane nezvako zvaunoda.

Iine makore gumi nemashanu eruzivo mukugadzirisa kukanganiswa kwemagetsi, DOREXS mugadziri akavimbika wemhando yepamusoro EMI mafirita ekurapa, echiuto, uye ekutengesa maapplication.Ese edu eEMI mafirita akagadzirwa kuti asangane neindasitiri zviyero uye kutevedzera EMC mirau.Ongorora kusarudzwa kwedu kweEMI mafirita kana tumira chikumbiro chetsika kuti uwane iyo yakakwana EMI sefa kune zvaunoda.Kuti uwane rumwe ruzivo nezveDOREXS tsika uye yakajairwa EMI mafirita, ndapota taura nesu.

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