Indima ebalulekile yekhebula ledatha ukudlulisa amasignali edatha. Kodwa uma silisebenzisa ngempela, kungase kube khona zonke izinhlobo zolwazi lokuphazamiseka okungahlelekile. Ake sicabange ngokuthi uma la masignali aphazamisayo engena kumqhubi wangaphakathi wekhebula ledatha futhi ebekwe phezu kwesignali edluliselwe ekuqaleni, kungenzeka yini ukuphazamisa noma ukushintsha isignali edluliselwe ekuqaleni, ngaleyo ndlela kubangele ukulahlekelwa amasignali awusizo noma izinkinga?
Ikhebula
Isendlalelo esilukiwe kanye nesendlalelo se-aluminium foil zivikela futhi zivikele ulwazi oludlulisiwe. Yiqiniso ukuthi akuzona zonke izintambo zedatha ezinesendlalelo ezimbili zokuvikela, ezinye zinesendlalelo eziningi zokuvikela, ezinye zinesendlalelo esisodwa kuphela, noma azikho nhlobo. Isendlalelo sokuvikela siwukuhlukaniswa kwensimbi phakathi kwezifunda ezimbili zendawo ukulawula ukungeniswa kanye nemisebe yamagagasi kagesi, amagnetic kanye ne-electromagnetic kusuka esifundeni esisodwa kuya kwesinye.
Ngokukhethekile, kuwukuzungeza ama-conductor cores ngezihlangu ukuze avinjwe ukuthi angathinteki yizinkundla zangaphandle ze-electromagnetic/amasignali okuphazamiseka, futhi ngesikhathi esifanayo ukuvimbela izinkundla/amasignali kagesi okuphazamiseka ezintanjeni ukuthi angasabalali ngaphandle.
Ngokuvamile, izintambo esikhuluma ngazo zifaka phakathi izinhlobo ezine zezintambo ezingaphakathi ezivikelwe, ama-twisted pairs, izintambo ezivikelwe kanye nezintambo ze-coaxial. Lezi zinhlobo ezine zezintambo zisebenzisa izinto ezahlukene futhi zinezindlela ezahlukene zokumelana nokuphazamiseka kwe-electromagnetic.
Isakhiwo se-twisted pair siyindlela evame ukusetshenziswa kakhulu yesakhiwo sekhebula. Isakhiwo saso silula, kodwa sinamandla okunciphisa ngokulinganayo ukuphazamiseka kwe-electromagnetic. Ngokuvamile, uma izinga lokujiya kwezintambo zaso ezijiyile liphezulu, kulapho umphumela wokuvikela ufinyelelwa khona kangcono. Izinto zangaphakathi zekhebula elivikelwe zinomsebenzi wokuqhuba noma ukuqhuba ngamandla kazibuthe, ukuze kwakhiwe inethi yokuvikela futhi kufezwe umphumela omuhle kakhulu wokuphazamiseka kwamandla kazibuthe. Kukhona ungqimba lokuvikela insimbi ekhebulani le-coaxial, okubangelwa kakhulu isimo salo sangaphakathi esigcwele izinto, esingagcini nje ngokuba nenzuzo ekudlulisweni kwezimpawu futhi sithuthukisa kakhulu umphumela wokuvikela. Namuhla sizokhuluma ngezinhlobo kanye nokusetshenziswa kwezinto zokuvikela ikhebula.
Itheyiphu ye-Aluminium foil Mylar: Itheyiphu ye-Aluminium foil Mylar yenziwe nge-aluminium foil njengento eyisisekelo, ifilimu ye-polyester njengento yokuqinisa, eboshwe nge-polyurethane glue, ipholiswe ekushiseni okuphezulu, bese isikwa. Itheyiphu ye-Aluminium foil Mylar isetshenziswa kakhulu esikrinini sokuvikela izintambo zokuxhumana. Itheyiphu ye-Aluminium foil Mylar ihlanganisa i-aluminium foil eyodwa, i-aluminium foil enezinhlangothi ezimbili, i-aluminium foil enefinned, i-aluminium foil eshisayo encibilikayo, i-aluminium foil, kanye ne-aluminium-plastic composite tape; ungqimba lwe-aluminium lunikeza ugesi omuhle kakhulu, ukuvikela kanye nokulwa nokugqwala, lungazivumelanisa nezidingo ezahlukahlukene.
Itheyiphu ye-Mylar foil
I-foil ye-aluminium I-Mylar tape isetshenziswa kakhulu ukuvikela amaza kagesi asebenzisa imvamisa ephezulu ukuvimbela amaza kagesi asebenzisa imvamisa ephezulu ukuthi angaxhumani nabaqhubi bekhebula ukuze kukhiqizwe ugesi okhiqizwayo futhi kwandiswe ukuxoxisana. Lapho ugesi osebenzisa imvamisa ephezulu uthinta ugesi we-aluminium, ngokomthetho kaFaraday wokungeniswa kwe-electromagnetic, ugesi we-electromagnetic uzonamathela ebusweni be-foil ye-aluminium futhi ukhiqize ugesi okhiqizwayo. Ngalesi sikhathi, kudingeka umqhubi ukuze aqondise ugesi okhiqizwayo emhlabathini ukuze kugwenywe ugesi okhiqizwayo ukuthi ungaphazamisi isignali yokudlulisa.
Isendlalelo esilukiwe (ukuvikela insimbi) njengezintambo ze-copper/aluminium-magnesium alloy. Isendlalelo sokuvikela insimbi senziwe ngezintambo zensimbi ezinesakhiwo esithile sokuluka ngemishini yokuluka. Izinto zokuvikela insimbi ngokuvamile ziyizintambo zethusi (izintambo zethusi ezifakwe ethini), izintambo ze-aluminium alloy, izintambo ze-aluminium ezimbozwe ngethusi, i-copper tape (i-plastic coated steel tape), i-aluminium tape (i-plastic coated aluminium tape), i-steel tape nezinye izinto.
I-Copper Strip
Ngokuhambisana nokuluka kwensimbi, amapharamitha esakhiwo ahlukene anokusebenza okuhlukile kokuvikela, ukusebenza kahle kokuvikela kwesendlalelo esilukiwe akuhlobene nje kuphela nokuqhuba kukagesi, ukungena kwamandla kagesi kanye neminye imingcele yesakhiwo sensimbi uqobo. Futhi uma izendlalelo eziningi, ukumbozwa kukhulu, i-engeli yokuluka incane, futhi ukusebenza kahle kokuvikela kwesendlalelo esilukiwe kungcono. I-engeli yokuluka kufanele ilawulwe phakathi kuka-30-45°.
Ngokuluka okunesendlalelo esisodwa, izinga lokumboza kungcono libe ngaphezu kuka-80%, ukuze liguqulwe libe ezinye izinhlobo zamandla njengamandla okushisa, amandla angaba khona kanye nezinye izinhlobo zamandla ngokulahlekelwa yi-hysteresis, ukulahlekelwa yi-dielectric, ukulahlekelwa ukumelana, njll., futhi kudle amandla angadingekile ukuze kufezwe umphumela wokuvikela nokumunca amaza kagesi.
Isikhathi sokuthunyelwe: Disemba 15-2022