Ua ntej sib tham txog seb cov coaxial cables puas tuaj yeem xa cov yeeb yaj kiab, cia peb nkag siab txog cov qauv yooj yim thiab cov yam ntxwv ntawm coaxial cables. Coaxial cable, raws li lub npe qhia, yog cov qauv siv hluav taws xob tsim los ntawm tus neeg xyuas pib sab hauv, txheej txheej rwb thaiv tsev, txheej thaiv, thiab txheej txheej, muaj npe tom qab qhov sib txawv ntawm cov khoom siv sab hauv thiab sab nrauv. Cov qauv tsim tshwj xeeb no muab cov coaxial cables muaj txiaj ntsig zoo hauv kev cuam tshuam electromagnetic cuam tshuam thiab teeb liab kis tau zoo. Yog li ntawd, coaxial cables muaj ntau yam kev siv nyob rau hauv lub tshav pob ntawm video kis tau tus mob.
1, Cov qauv thiab cov yam ntxwv ntawm coaxial cables
Tus neeg xyuas pib sab hauv ntawm ib lub coaxial cable feem ntau yog ib qho lossis ntau cov xov tooj nyias nyias, lub luag haujlwm rau kev xa cov teeb liab; Cov txheej rwb thaiv tsev yog qhwv ib ncig ntawm tus neeg xyuas pib sab hauv kom cais cov hluav taws xob hluav taws xob ntawm cov khoom siv sab hauv thiab sab nrauv thiab tiv thaiv cov teeb liab tawm; Lub shielding txheej yog tsim los ntawm cov hlau woven mesh lossis aluminium ntawv ci, uas yog siv los tiv thaiv sab nraud electromagnetic cuam tshuam los ntawm kev cuam tshuam cov teeb liab; Cov txheej txheej sab nrauv plays lub luag haujlwm hauv kev tiv thaiv cov qauv cable thiab txhim khu kev ruaj ntseg ntawm cable.
2, Daim ntawv thov ntawm coaxial cables nyob rau hauv video kis tau tus mob
Coaxial cables ua lub luag haujlwm tseem ceeb hauv analog video teeb liab kis tau tus mob vim lawv muaj peev xwm tiv thaiv kev cuam tshuam zoo thiab cov yam ntxwv ntawm cov teeb liab ruaj khov. Hauv kev xa xov tooj cua thaum ntxov, coaxial cables tau siv dav los txuas cov xov tooj cua hauv xov tooj cua thiab cov xov tooj cua, ua kom pom tseeb ntawm cov teeb liab video. Txawm hais tias niaj hnub no cov thev naus laus zis nrov digital video, coaxial cables tseem ua lub luag haujlwm tseem ceeb hauv qee qhov xwm txheej tshwj xeeb.
3, Qhov zoo ntawm coaxial cables hauv video kis tau tus mob
Muaj peev xwm tiv thaiv kev cuam tshuam: Cov txheej thaiv thaiv ntawm coaxial cables tuaj yeem cuam tshuam sab nraud electromagnetic cuam tshuam thiab ua kom ruaj khov ntawm cov teeb liab video.
Kev sib kis ntev ntev: Piv nrog rau lwm hom video cables, coaxial cables tuaj yeem tswj cov teeb liab zoo nyob ntev dua.
Kev sib raug zoo zoo: Lub coaxial cable interface muaj cov qauv kev sib koom ua ke, kev sib raug zoo zoo, thiab txhawb kev sib txuas ntawm cov khoom siv sib txawv.
4, Cov kev txwv ntawm coaxial cables nyob rau hauv video kis tau tus mob
Txawm hais tias coaxial cables muaj ntau qhov zoo hauv kev sib kis video, lawv cov kev txwv tau maj mam pom meej nrog kev nce qib ntawm cov thev naus laus zis:
Kev txwv Bandwidth: Lub bandwidth ntawm coaxial cables kuj tsis tshua muaj, ua rau nws nyuaj rau kev ua tau raws li qhov xav tau ntawm kev sib kis ntawm cov kev daws teeb meem siab dua thiab cov teeb liab tus nqi video.
Tus nqi kho mob: Lub coaxial cable system yuav tsum tau saib xyuas thiab tshuaj xyuas kom ntseeg tau tias nws ua haujlwm li qub, uas ua rau cov nqi siv ntau ntxiv.
Maj mam theem tawm: Nrog rau kev txhim kho cov thev naus laus zis thev naus laus zis, kev lag luam sib koom ntawm coaxial cables hauv kev sib kis video tau maj mam hloov los ntawm cov thev naus laus zis tshiab xws li fiber ntau optics thiab network cables.
5, Kev cia siab yav tom ntej ntawm coaxial cables
Txawm hais tias daim ntawv thov ntawm coaxial cables hauv kev sib kis video ntsib qee qhov kev sib tw, lawv tseem muaj qee qhov txiaj ntsig ntawm daim ntawv thov hauv qee qhov xwm txheej tshwj xeeb, xws li kev sib txuas ntawm cov cuab yeej qub thiab kev sib kis video hauv qee qhov chaw tshwj xeeb. Lub caij no, nrog kev nce qib ntawm thev naus laus zis tsis tu ncua, coaxial cables lawv tus kheej kuj tau hloov kho tas li thiab hloov kho tshiab los txhim kho lawv txoj kev sib kis thiab kev sib raug zoo.
Hauv cov ntsiab lus, coaxial cables ua lub luag haujlwm tseem ceeb hauv kev sib kis video. Txawm hais tias nrog kev nce qib ntawm thev naus laus zis, nws yuav tsis zoo li cov thev naus laus zis tshiab xws li fiber ntau optics thiab network cables hauv qee yam, coaxial cables tseem yog ib qho kev txhim khu kev qha thiab kev lag luam video xa tawm hauv cov xwm txheej tshwj xeeb. Nyob rau hauv lub neej yav tom ntej, nrog lub nruam innovation ntawm technology thiab cov kev hloov ntawm daim ntawv thov, lub luag hauj lwm ntawm coaxial cables nyob rau hauv video kis tau tus mob kuj yuav evolve raws li.
