Wake wazibuza ukuthi kungani izipikha ezihlakaniphile ekhaya, amaphrinta ehhovisi, nezingalo ezizenzakalelayo ezisebenza emafektri zingasebenza ngokuzinza futhi zidlulise ulwazi ngokunembile? Kukhona "ibutho elifihliwe" ngemuva kwakho konke lokhu, elisebenza buthule futhi lingakhathali. Ziyizintambo eziningi-eziyizintambo ezingumgogodla - okuyiqembu "lezithunywa zesignali" kanye "nezinkampani zezinkampani zikagesi" "ezixhumene ngokubambisana" okugxile ku-DNA yazo.
Ngokungafani -nekhebula eliwumgogodla elilodwa kuphela "elinenzalo", ikhebula{1}}eliningi lifana-neqembu eliqeqeshwe kahle. Inqwaba yezintambo ezincane zocingo zigoqwe kahle emgodleni ofanayo wangaphandle, ngayinye yenza umsebenzi wayo, ayiqhudelani ngesikweletu noma ibangele inkinga. Abanye banomthwalo wemfanelo wokudlulisa ugesi, abanye ngokudlulisa izimpawu, kanti abanye baqinisekisa ukuphepha. Namuhla, sizogxila "kubadlali benkanyezi" phakathi kwaleli "butho" - amakhebuli amaningi aqinisekisiwe e-UL-amaningi{8}}ayisitifiketi. Ngayinye inamakhono ayo "akhethekile" futhi ifanele izidingo "zenkundla yempi".
Ake ngiqale ngethule ucezu oluncane lolwazi kini nonke: Ukunikezwa isitifiketi kwe-UL akulona nje "ilebula elihloniphekile" elingashaywa nje ngokunganaki. Kuyisitifiketi sokuphepha esikhishwe I-American Insurance Laboratory, okulingana nokukhipha "iphasi yokuphepha yomhlaba wonke" ezintanjeni zekhebula. Labo abaphumelele lesi sitifiketi kumele bakwazi ukumelana novivinyo oluqinile mayelana nokubambezeleka kwelangabi, ukwahlukanisa, nokusebenza kukagesi. Manje, ake sikhiphe "ochwepheshe abaqinisekisiwe" abambalwa ukuze sikubonise!
Umdlali 1: UL2726 - "I-Flexible Little Genius" kumadivayisi kagesi
Uma kukhona "yonke-i-rounder" phakathi-izintambo ezingumgogodla eziningi,I-UL2726ngokuqinisekile ungomunye wabo. Ngaphezu kwalokho, kubuye kube uhlobo "oluguquguqukayo". Le ntambo yakhelwe ngokuyinhloko ukufakwa kwezintambo zangaphakathi emishinini kagesi, enezinombolo eziyinhloko ezisukela ku-2 kuye ku-7. Ifana "neqembu elincane", futhi ifaneleka ngokukhethekile ukusebenza kumadivayisi anendawo elinganiselwe njengamawashi ahlakaniphile, amaphilisi, nezinzwa ezincane.
"Isici esibulalayo" sayo ukuguquguquka kwayo okuphawulekayo kanye nokuncipha komlilo emazingeni okushisa aphansi. Emazingeni okushisa aphansi kakhulu, ingahlala ivumelana nezimo ngaphandle kokuphahlazeka noma ukuba brittle. Uma ihlangana namalangabi avulekile, ingacisha umlilo ngokushesha futhi ivimbele ukuthi ungasakazeki ngaphakathi kwedivayisi. Okuhlaba umxhwele nakakhulu amandla ayo okuphatha ukupheya okusontiwe kanye{3}}nezintambo eziwumgogodla eziningi. Ngokulawula ngokucophelela ukuphakama kokusonta, ifinyelela ibhalansi phakathi kokuguquguquka nokusebenza{5}}okulwa nokuphazamiseka, iqinisekisa ukudluliswa kwesignali ecacile ngaphakathi kwesisetshenziswa ngaphandle kwanoma yimuphi "umsindo." Uma sisebenzisa amafoni ethu ukubuka amavidiyo noma ukusebenza kumathebulethi, isignali ayishintshi futhi ayibambezeli. Lokhu kungase kube umphumela wokubandakanyeka kwe-UL2726.
Umdlali 2: UL2464 - "I-Durable Performer" Yezindawo Zezimboni
Uma i-UL2726 inhle "emsebenzini omuhle", khona-keI-UL2464inhle "emisebenzini enzima nenzima", futhi "iyisisekelo" ezimweni ezishintshayo zezimboni. Le ntambo inezibalo eziyisisekelo eziguquguquka kakhulu. Isibalo esingumgogodla esijwayelekile singu-4 kuya ku-8, futhi singenziwa ngendlela oyifisayo kufika kuma-cores angu-36, okulingana "nebutho elikhulu", elikwazi ngesikhathi esisodwa ukwenza amasignali amaningi kanye nemisebenzi yokudlulisa amandla. Ifaneleka ngokukhethekile imigqa yokukhiqiza ezenzakalelayo kanye nemishini ye-CNC ezimbonini, okungamadivayisi "-emisebenzi eminingi".
"Isivikelo" saso siqine ngendlela emangalisayo - intambo yethusi emsulwa ehlanganiswe neshede ye-PVC, ukumelana nowoyela, ukuguga nokugqwala. Ngisho nalapho usebenza endaweni yokusebenzela enamabala kawoyela amaningi nothuli, ingagcina ukusebenza okuzinzile. Ngaphezu kwalokho, izinga lokumbozwa kongqimba oluvikelayo lingafinyelela ku-98%, lidlule kude isilinganiso somkhakha. Kufana nokubeka "ikheji ye-Faraday" eduze kwenkango yocingo, kuvimbe ngempumelelo ukuphazamiseka kwamagnetic kwangaphandle futhi kuvimbele ukuvuza kwesignali yangaphakathi. Lokhu kunika amandla ukunyakaza okunembe kakhudlwana kwengalo yerobhothi kanye nokusebenza okuzinzile komugqa wokukhiqiza. Ngaphezu kwalokho, ihambisana nendinganiso yezemvelo ye-ROHS, ephephile futhi enobungani nemvelo. Kungabhekwa "njengomdlali othembekile" kuzilungiselelo zezimboni.
Umdlali 3: UL20549 - "Umnakekeli Wokuphepha" Wezinto Zokwelashwa
Phakathi kwazo zonke "izinkundla zempi", izidingo emkhakheni wezokwelapha ngokungangabazeki ziqinile kakhulu. Futhi i-UL20549 iyona kanye "umqaphi wezokuphepha"{2}}enzelwe le nkambu. Le ntambo ithatha{4}}isakhiwo sokufakelwa kwezingqimba ezimbili, nevelu yokumelana nogesi iphakame ngo-40% kunezintambo ezijwayelekile. Kufana nokunikeza i-wire core "isudu-yokuvikela ungqimba ekabili", engavimbela ngempumelelo ukuvuza futhi iqinisekise ukuphepha kwabasebenzi bezokwelapha neziguli.
Izinga layo lokubala eliyisisekelo lingama-cores ama-3 kuye kwayi-6, futhi lingenziwa ngezifiso kufika kuma-cores angama-24. Idizayini ye-twist ratio ifinyelela ububanzi obuphindwe izikhathi ezingu-20, enganciphisa i-crosstalk yesignali ngezinga elikhulu kakhulu. Ngokunemba kwemishini yezokwelapha efana nemishini ye-nuclear magnetic resonance kanye nemishini ye-electrocardiogram,UL20549unesibopho sokudlulisa izimpawu ezibalulekile zeziguli kanye namasignali okulawula amathuluzi. Lonke ucezu lwedatha kufanele lunembe ngaphandle kwephutha, futhi konke ukudluliswa kwamandla kufanele kuzinze futhi kuthembeke. Phela, emkhakheni wezokwelapha, ngisho nokuchezuka kwesignali eyodwa noma ukuguquguquka okuncane kwamandla kungase kuthinte imiphumela yokuxilongwa. Futhi i-UL20549 isebenzisa{4}}ukusebenza kwayo konqenqema ukuze ivikele lo "layini wempilo".
Umdlali 4: UL2517 - "Inani Elingcono Kakhulu Lemali" Kuzimo Zokuthekelisa
Uma imfuneko yakho ingeyokuthekelisa futhi ufuna isixazululo "esisebenzayo-esisebenzayo", khona-keI-UL2517nakanjani ukukhetha kwakho okuhle kakhulu. Le ntambo, njenge-UL2464 ne-UL20549, iwu-UL-umkhiqizo ogunyaziwe" oqinisekisiwe. Ihlangabezana nazo zonke izindinganiso zokumelana nomlilo kanye nezindinganiso zokushisa, ihambisana nezindinganiso zokuvikela imvelo njenge-RoHS ne-REACH, futhi iza nayo yonke imibhalo yezobuchwepheshe edingekayo yokuthekelisa, engakongela izinkinga eziningi ngesikhathi sokuvunyelwa kwentela.
Ukubalwa kwayo okuyisisekelo okujwayelekile kungu-2 kuya ku-4 cores, futhi kungenziwa ngendlela oyifisayo kufika kuma-cores ayi-12. I-twist ratio yakhelwe izikhathi eziyi-16 ububanzi. Yamukela inqubo yokusonteka kwe-diagonal engu-45, enciphisa u-15% wesignali ye-crosstalk uma kuqhathaniswa nezindlela zendabuko. Kungakhathaliseki ukuthi isetshenziselwa ukuthunyelwa kwempahla yasendlini yangaphandle noma ukuhlanganiswa phesheya kwezilwandle kwemishini emincane yezimboni, ingakwazi ukulingana ngokugcwele nezidingo. Okumangaza kakhulu ukuthi isilinganiso sayo{10}}sokusebenza siphezulu kakhulu. Uma kuqhathaniswa nemikhiqizo efanayo engenisiwe, ingonga u-25% kuya ku-30% wesabelomali sokuthenga, futhi ingathathwa njengesibonelo "sokuthola imiphumela emihle ngemali encane".
Ngaphandle kwalokhu-okushiwo ngenhla "abadlali abadumile" abane, inkampani yethuI-UL20811, UL20167, UL2089, njll. futhi "zinamandla" emkhakheni wezintambo-eziningi. Isibonelo, i-UL2089 yakhelwe ngokuyinhloko izinga lokushisa eliphezulu nokumelana nomfutho ophezulu, ifanele ukusetshenziswa-ezindaweni zezimboni ezinezinga lokushisa eliphezulu;I-UL11627ikwazi ukumelana nemisebe ye-ultraviolet futhi inokumelana nesimo sezulu esiqinile, ilungele izintambo zangaphandle;I-UL2919igxile kakhulu ekukhanyeni nasekuhlanganiseni, ifanele izinkambu ezinembayo ezifana ne-aerospace kanye{0}}nempahla yokugcina ephezulu.
In fact, the charm of multi-core cables lies in their "clear division of labor and efficient collaboration". Unlike single-core cables which "work alone", these multi-core cables achieve the "1+1>2" inzuzo yokuhlanganyela ngezinga eligcwele ngezinhlanganisela zezinombolo eziphusile, izinqubo zokusonta okunembayo, namakhava aqinile okuvikela. Ukwengezwa kwesitifiketi se-UL futhi kwengeza "isiqinisekiso sokuphepha" kulokhu kubambisana, okuzivumela ukuthi "zisetshenziswe" ngokuzethemba ezimeni ezihlukahlukene ezifana nogesi, imboni, ukunakekelwa kwezempilo, nezinhlelo zokusebenza zangaphandle.
Ngokuzayo uma usebenzisa izinto zikagesi noma imishini yezimboni, kungani ungacabangi ukuthi kukhona yini "ibutho lekhebula" elinjalo elisebenza ngemuva? Impela yilawa makhebula-awumongo angenakulinganiswa okuthi, "ngokubekezela" kanye "nobungcweti", axhumanise zonke izici zempilo yethu nomsebenzi, futhi abe "isisekelo esingabonakali" esibaluleke kakhulu kubuchwepheshe besimanje.
