1. ukuchasana nokuphazanyiswa kunye nokuhambelana kwe-electromagnetic
1. Inkcazo yokuphazamiseka
Ukuphazamiseka kubhekiselele kukuphazamiseka okubangelwa yingxolo yangaphandle kunye ne-electromagnetic wave engenamsebenzi ekufumaneni imodyuli yekristale yolwelo.Inokuchazwa kwakhona njengempembelelo yokuphazamiseka okubangelwa amandla angafunekiyo, kubandakanywa neempembelelo zezinye iimpawu, ukukhutshwa kobuxoki, ingxolo eyenziweyo, njl.
２.Ukuhambelana kwe-electromagnetic kunye nokuchasana nokuphazamiseka
Ngakolunye uhlangothi, izixhobo zombane kunye neesekethe zombane ngokuphazamiseka kwangaphandle, kwelinye icala, kuya kuvelisa ukuphazamiseka kwihlabathi langaphandle.Ke ngoko, isiginali ye-elektroniki sisiginali eluncedo kwisekethe, kwaye ezinye iisekethe zinokuba ingxolo.
Itekhnoloji ye-anti-interference yesekethe ye-elektroniki yinxalenye ebalulekileyo ye-EMC.I-EMC imele i-e lectro MAG into enetic Compatibility, eguqulela njengokuhambelana kombane.Ukuhambelana kwe-electromagnetic ngumsebenzi wezixhobo zombane ezenza imisebenzi yazo kwindawo ye-electromagnetic ngaphandle kokubangela ukuphazamiseka okunganyamezelekiyo.
Ukuhambelana kwe-Electromagnetic kuneentsingiselo ezintathu: 1. Isixhobo sombane siya kuba nakho ukucinezela uphazamiseko lombane lwangaphandle.2. Uphazamiseko lwe-electromagnetic oluveliswa sisixhobo ngokwaso luya kuba ngaphantsi komda omiselweyo kwaye aluyi kuchaphazela ukusebenza okuqhelekileyo kwezinye izixhobo zombane kwindawo efanayo yombane;3. Ukuhambelana kwe-Electromagnetic kuso nasiphi na isixhobo sombane sinokulinganiseka.
Izinto ezintathu ezichasene nokuphazamiseka
Kukho izinto ezintathu zokwenza ukuphazamiseka kwe-electromagnetic: umthombo wokuphazamiseka kwe-electromagnetic, indlela yokudibanisa yokuphazamiseka kombane, izixhobo ezinovakalelo kunye nesekethe.
1. Imithombo yokuphazamiseka kombane ibandakanya imithombo yokuphazamiseka kwendalo kunye nemithombo yokuphazamiseka eyenziwe ngabantu.
2. Iindlela zokudityaniswa kokuphazamiseka kwe-electromagnetic ziquka ukuqhuba kunye nemitha.
(1) ukudibanisa ukudibanisa: Yinto yokuphazamiseka ukuba ingxolo iqhutywe kwaye idibaniswe ukusuka kumthombo wokuphazamiseka ukuya kwisixhobo esibucayi kunye nesekethe ngokudibanisa phakathi komthombo wokuphazamiseka kunye nezixhobo ezibuthathaka.Isiphaluka sothutho sibandakanya abaqhubi, iinxalenye eziqhubayo zezixhobo, ukunikezelwa kwamandla, i-impedance eqhelekileyo, indiza yomhlabathi, i-resistors, i-capacitors, i-inductors kunye ne-inductors efanayo, njl.
(2) ukudityaniswa kwemitha: Umqondiso wokuphazamiseka usasazeke phakathi ngendlela yeradiated electromagnetic wave, kwaye amandla okuphazamiseka akhutshwa kwindawo ejikelezileyo ngokomthetho wokusasaza kombane.Zintathu iindidi eziqhelekileyo zokudityaniswa kwemitha: 1. I-eriyali yombane ekhutshwa ngumthombo wokuphazamiseka ifunyenwe nge-eriyali yesixhobo esinovakalelo.2.Isithuba sombane we-electromagnetic field inductively dityaniswa yi-conductor, ebizwa ngokuba yi-field-to-line coupling.3.Ukudityaniswa kokuveliswa kwemveliso ye-frequency frequency phakathi kwee-conductor ezimbini ezihambelanayo kubizwa ngokuba yi-line-to-line coupling.
4. Ifomula yokuchasana nokuphazamiseka kwezinto ezintathu
ichaza isekethe ngeqondo lophazamiseko oluchazwe kwi-N, emva koko u-n unokusetyenziselwa ukuchaza ifomyula ye-NG * C / I: G njengobunzulu bomthombo wengxolo;C yinto yokudibanisa ukuba umthombo wengxolo ugqithise kwindawo ephazamisekile ngandlela-thile;Ndiyi-anti-interference performance yesekethe ephazamisekileyo.
G, C, I oko kuthetha ukuchasana nokuphazamiseka izinto ezintathu.Ingabonwa ukuba iqondo lokuphazamiseka kwisekethe lilingana nokuqina kwe-g yomthombo wengxolo, ngokulinganayo kwi-coupling factor C, kunye ne-inversely ye-anti-interference performance I yesekethe ephazamisayo.Ukwenza n encinci, ungenza oku kulandelayo:
1. G ukuba mncinci, oko kukuthi, ubukho benjongo yokungenelela komthombo wokuphazamiseka endaweni ukucinezela encinci.
2. C kufuneka ibe yincinci, ingxolo kwindlela yokudlulisela ukunika ukuthotywa okukhulu.
3. Ndiyakwandisa, kwindawo yokuphazamiseka ukuba ndithathe amanyathelo okuthintela ukuphazamiseka, ukwenzela ukuba i-anti-interference ikhono lesekethe, okanye ukunyanzeliswa kwengxolo kwindawo yokuphazamiseka.
Uyilo lwe-anti-interference (EMC) kufuneka luqale kwizinto ezintathu zokuthintela ukuphazamiseka kunye nokufikelela kumgangatho we-EMC, oko kukuthi, ukunqanda umthombo wokuphazamiseka, ukunqumla indlela yokudibanisa umbane kunye nokuphucula ukukhuseleka kwezixhobo ezibucayi.
3. Umgaqo wokukhangela imithombo yengxolo,
nokuba imeko intsonkothe kangakanani na, kufuneka iqale ifunde indlela yokucinezela ingxolo kumthombo wengxolo.Umqathango wokuqala kukufumana umthombo wokuphazamiseka, okwesibini kukuhlalutya ithuba lokunciphisa ingxolo kunye nokuthatha amanyathelo ahambelanayo.
Eminye imithombo yokuphazamiseka ibonakala, njengombane, ukuhanjiswa kwerediyo, igridi yamandla ekusebenzeni kwezixhobo eziphezulu zamandla.Lo mthombo wokuphazamiseka awukwazi ukuthatha inyathelo kwimvelaphi yokuphazamiseka.
Iisekethe ze-elektroniki zinzima kakhulu ukufumana imithombo yokuphazamiseka.Fumana umthombo wophazamiseko ngulo: okwangoku, ukutshintsha kwamandla ombane ngokumangalisayo yindawo yomthombo wokuphazamiseka kwesekethe ye-elektroniki.Ngokwezibalo, iindawo ezinkulu ze-DI / dt kunye ne-du / DT ziyimithombo yokuphazamiseka.
4. Imigaqo yokufumana iindlela zokusasaza ingxolo
1. Umthombo oyintloko wengxolo ye-inductive coupling ngokuqhelekileyo yimeko yenguqu enkulu yangoku okanye umsebenzi omkhulu wangoku.
2. Iinguqu ze-voltage zinkulu okanye ziphezulu kwimeko yokusebenza kwe-voltage ephezulu, ngokuqhelekileyo umthombo oyintloko we-capacitive coupling.
3. Ingxolo ye-common impedance coupling nayo ibangelwa ukuhla kwe-voltage kwi-impedance eqhelekileyo ngenxa yeenguqu ezinkulu zangoku.
4. Ngenxa yeenguqu ezinzulu kwi-current, icandelo layo le-inductance elibangelwa yimpembelelo libi kakhulu.Ukuba okwangoku akutshintshi,.Nokuba ixabiso labo elipheleleyo likhulu kakhulu, azibangeli ingxolo yokudibanisa okanye i-capacitive kwaye yongeza kuphela ukuhla kwamandla ombane ozinzileyo kwi-impedance eqhelekileyo.
Izinto ezintathu ezichasene nokuphazamiseka
Ixesha lokuposa: Jun-09-2020
