Emkhakheni omkhulu wezobuchwepheshe, kukhona iqhawe elilodwa elithule eliqinisekisa ukudluliswa kwedatha okubushelelezi kanye nokuxhumana okungenaphutha ezinhlelweni eziningi zokusebenza - izintambo ze-coaxial ezingama-50 ohm. Nakuba abaningi bengase bangaboni, leli qhawe elingakadunyiswa lidlala indima ebalulekile ezimbonini ezisukela kwezokuxhumana kuya ezindiza. Kule bhulogi, sizokwembula izimfihlakalo zekhebula le-coaxial elingama-50 ohm futhi sihlole imininingwane yalo yobuchwepheshe, izinzuzo kanye nezinhlelo zokusebenza. Ake siqale lolu hambo ukuze siqonde izinsika zokuxhumeka okungenamthungo!
Imininingwane yobuchwepheshe kanye nesakhiwo:
Ikhebula le-coaxial elingu-50 ohmumugqa wokudlulisa one-impedance ephawulekayo engama-ohms angu-50. Isakhiwo sawo sakhiwe ngezingqimba ezine eziyinhloko: umqhubi wangaphakathi, umsizi we-dielectric, isivikelo sensimbi kanye nomgogodla wangaphandle ovikelayo. Umqhubi wangaphakathi, ovame ukwenziwa ngethusi noma nge-aluminium, uphatha isignali kagesi, kuyilapho umsizi we-dielectric usebenza njengesivikelo sikagesi phakathi komqhubi wangaphakathi nesivikelo. Ukuvikela insimbi, okungaba ngesimo sentambo noma i-foil elukiwe, kuvikela ekuphazamisekeni kwemvamisa yomsakazo wangaphandle (RFI). Okokugcina, umgogodla wangaphandle uhlinzeka ngesivikelo somshini kukhebula.
Izinzuzo ezivezayo:
1. Ubuqotho Besignali Nokulahlekelwa Okuphansi: I-impedance yesici esingu-50 ohm yalolu hlobo lwekhebula iqinisekisa ubuqotho besignali obufanele, inciphisa ukubonakaliswa kanye nokungafani kwe-impedance. Ibonisa ukuncishiswa okuphansi (okungukuthi ukulahleka kwesignali) emabangeni amade, okwenza ifaneleke ukusetshenziswa kwemvamisa ephezulu. Lesi sici sokulahlekelwa okuphansi sibalulekile ekugcineni ukudluliswa kwesignali okuthembekile nokuseqophelweni eliphezulu.
2. Ububanzi bemvamisa: Ikhebula le-coaxial elingu-50 ohm lingaphatha ububanzi be-spectrum, kusukela kuma-kilohertz ambalwa kuya kuma-gigahertz amaningana. Lokhu kuguquguquka kwenza ukuthi ikwazi ukuhlangabezana nezidingo zezinhlelo zokusebenza ezahlukahlukene, okuhlanganisa ukuxhumana ngocingo, ukusakaza, ukuhlolwa kwe-RF kanye nokulinganisa, ukuxhumana kwezempi kanye nemboni yezindiza.
3. Ukuvikela Okuqinile: Lolu hlobo lwekhebula lunesivikelo sensimbi esiqinile esihlinzeka ngesivikelo esihle kakhulu ekuphazamisekeni kwe-electromagnetic okungafuneki futhi siqinisekisa ukudluliswa kwesignali okuhlanzekile. Lokhu kuyenza ifaneleke kakhulu ezinhlelweni zokusebenza ezivame ukuthinteka yi-RFI, njengezinhlelo zokuxhumana ezingenantambo kanye nokusetha kokulinganisa okuphezulu.
Izinhlelo zokusebenza ezicebile:
1. Ezokuxhumana: Embonini yezokuxhumana, izintambo ze-coaxial ezingama-50-ohm zisebenza njengomgogodla wokudlulisa amasignali ezwi, ividiyo, kanye nedatha phakathi kwemibhoshongo yokuxhumana kanye namaswishi. Isetshenziswa kakhulu kumanethiwekhi eselula, ukuxhumana kwesathelayithi, kanye nabahlinzeki bezinsizakalo ze-inthanethi (ama-ISP).
2. Ezempi kanye nezindiza: Ngenxa yokuthembeka kwayo okuphezulu, ukulahleka okuphansi kanye nokusebenza kahle kokuvikela, lolu hlobo lwekhebula lusetshenziswa kabanzi emkhakheni wezempi kanye nezindiza. Lusetshenziswa ezinhlelweni ze-radar, izindiza, ama-UAV (izimoto zasemoyeni ezingenamuntu), izinhlelo zokuxhumana zezinga lezempi, nokuningi.
3. Imishini yezimboni kanye neyokuhlola: Kusukela kuma-oscilloscope kuya kuma-network analyzer, ikhebula le-coaxial elingu-50-ohm livame ukusetshenziswa emalabhorethri nasemishinini yezimboni. Amandla alo okudlulisa amasignali emvamisa ephezulu ngokulahlekelwa okuncane kuyenza ifaneleke kakhulu ekusetshenzisweni kokuhlola nokulinganisa okudingakalayo.
Ekuphetheni:
Nakuba kuvame ukunganakwa,Ikhebula le-coaxial elingu-50 ohmiyisici esibalulekile ezimbonini eziningi, iqinisekisa ukuxhumana okungenaphutha kanye nokudluliswa kwedatha okuthembekile. Izici zayo zokulahlekelwa okuphansi, ukuvikela okuqinile kanye nobubanzi bemvamisa ebanzi kwenza kube yingxenye ebalulekile yezinhlelo zokusebenza zemvamisa ephezulu. Leli qhawe elingadunyiswanga lidlala indima ebalulekile kumanethiwekhi ezokuxhumana, ubuchwepheshe bezindiza, imishini yokuhlola yezimboni kanye neminye imikhakha. Ngakho-ke, masibonge izimangaliso zekhebula le-coaxial elingu-50-ohm, elivumela ukuxhumana okungenamthungo esikhathini sedijithali.
Isikhathi sokuthunyelwe: Okthoba-31-2023