Cov tooj liab-clad txhuas hlau yog tsim los ntawm concentrically cladding ib txheej tooj liab nyob rau saum npoo ntawm txhuas core, thiab cov thickness ntawm cov tooj liab txheej feem ntau yog siab tshaj 0.55mm. Vim hais tias kev sib kis ntawm cov teeb liab ntau zaus ntawm tus neeg xyuas pib muaj cov yam ntxwv ntawm cov nyhuv ntawm daim tawv nqaij, cable TV teeb liab tau xa mus rau saum npoo ntawm cov tooj liab txheej saum toj no 0.008mm, thiab cov tooj liab-clad aluminium sab hauv tus neeg xyuas pib tuaj yeem ua tau raws li cov kev xav tau ntawm cov teeb liab. .
1. Mechanical zog
Lub zog thiab elongation ntawm ntshiab tooj liab conductors yog ntau dua li ntawm tooj liab-clad aluminium conductors, uas txhais tau hais tias ntshiab tooj liab xov hlau zoo dua tooj liab-clad txhuas hlau nyob rau hauv cov nqe lus ntawm txhua yam khoom. Los ntawm qhov pom ntawm cov qauv tsim, cov tooj liab ntshiab muaj qhov zoo ntawm kev siv tshuab zoo dua li tooj liab-clad aluminium conductors
, uas tsis tas yuav tsum tau ua hauv kev siv tswv yim. Cov tooj liab-clad txhuas tus neeg xyuas pib yog qhov sib zog dua li cov tooj liab ntshiab, yog li qhov hnyav tag nrho ntawm cov tooj liab-clad aluminium cable yog sib zog dua li ntawm cov ntshiab tooj liab conductor cable, uas yuav ua kom yooj yim rau kev thauj mus los thiab kev tsim kho ntawm cable. Tsis tas li ntawd, tooj liab-clad aluminium yog softer dua li tooj liab ntshiab, thiab cables uas ua nrog tooj liab-clad aluminium conductors yog zoo dua li ntshiab tooj liab cables nyob rau hauv cov nqe lus ntawm yooj.
II. Nta thiab Daim Ntawv Thov
Hluav taws kub Resistance: Vim muaj cov hlau sheath, sab nraum zoov kho qhov muag cables ua tau zoo heev hluav taws kub. Cov khoom siv hlau tuaj yeem tiv taus qhov kub thiab txias thiab sib cais cov nplaim taws, txo qhov cuam tshuam ntawm hluav taws kub ntawm cov tshuab kev sib txuas lus.
Kev xa mus ntev: Nrog kev tiv thaiv lub cev muaj zog thiab cuam tshuam kev tiv thaiv, cov kab hluav taws xob sab nraum zoov tuaj yeem pab txhawb kev sib kis tau ntev-ntev optical teeb liab. Qhov no ua rau lawv muaj txiaj ntsig zoo hauv cov xwm txheej xav tau kev xa cov ntaub ntawv dav dav.
Kev Ruaj Ntseg Siab: Sab nraum zoov kho qhov muag cables tuaj yeem tiv thaiv lub cev thiab kev puas tsuaj sab nraud. Yog li ntawd, lawv tau siv dav hauv ib puag ncig uas muaj kev ruaj ntseg network siab, xws li cov tub rog hauv paus thiab tsoomfwv cov tsev kawm ntawv, kom ntseeg tau tias muaj kev nyab xeeb hauv network thiab kev ntseeg siab.
2. Cov khoom siv hluav taws xob
Vim hais tias cov conductivity ntawm txhuas yog phem dua li tooj liab, DC tsis kam ntawm tooj liab-clad txhuas conductors yog loj dua li cov ntshiab tooj liab conductors. Txawm hais tias qhov no cuam tshuam rau lub cable feem ntau yog nyob ntawm seb lub cable puas yuav siv rau cov khoom siv hluav taws xob, xws li cov khoom siv hluav taws xob rau amplifiers. Yog hais tias nws yog siv rau lub hwj chim mov, lub tooj liab-clad aluminium conductor yuav ua rau ntxiv zog noj thiab qhov voltage yuav poob ntau. Thaum lub zaus ntau tshaj 5MHz, AC kuj attenuation nyob rau lub sij hawm no tsis muaj qhov txawv txav nyob rau hauv ob qhov sib txawv conductors. Ntawm chav kawm, qhov no feem ntau yog los ntawm cov tawv nqaij ua haujlwm ntawm high-frequency tam sim no. Qhov siab dua qhov zaus, qhov ze dua qhov tam sim no ntws mus rau saum npoo ntawm tus neeg xyuas pib. Thaum cov zaus nce mus txog ib theem, tag nrho cov tam sim no ntws hauv cov khoom siv tooj liab. Ntawm 5MHz, tam sim no ntws nyob rau hauv ib tug tuab ntawm txog 0.025mm nyob ze ntawm qhov chaw, thiab tooj liab txheej thickness ntawm cov tooj liab-clad aluminium conductor yog hais txog ob npaug no thickness. Rau coaxial cables, vim hais tias cov teeb liab kis tau tus mob siab tshaj 5MHz, qhov kis tau tus mob ntawm tooj liab-clad txhuas conductors thiab ntshiab tooj liab conductors yog tib yam. Qhov no tuaj yeem ua pov thawj los ntawm qhov attenuation ntawm qhov tseeb kuaj cable. Copper-clad aluminium yog softer dua ntshiab tooj liab conductors, thiab nws yog ib qho yooj yim mus ncaj rau hauv cov txheej txheem ntau lawm. Yog li ntawd, rau qee qhov, nws tuaj yeem hais tau tias qhov rov qab poob Performance index ntawm cables siv tooj liab-clad aluminium zoo dua li cov cables siv cov tooj liab ntshiab.
3. Kev lag luam
Copper-clad aluminium conductors yog muag los ntawm qhov hnyav, zoo li cov tooj liab ntshiab, thiab tooj liab-clad aluminium conductors yog kim dua li cov tooj liab ntshiab ntawm tib qhov hnyav. Tab sis cov tooj liab-clad aluminium ntawm tib qhov hnyav yog ntau ntev dua li tus neeg xyuas pib ntshiab, thiab cov cable yog xam los ntawm qhov ntev. Tib qhov hnyav, tooj liab-clad txhuas hlau yog 2.5 npaug ntawm qhov ntev ntawm cov tooj liab ntshiab, tus nqi tsuas yog ob peb puas yuan ntau dua ib tuj. Ua ke, tooj liab-clad aluminium yog qhov zoo heev. Vim tias cov tooj liab-clad aluminium cable yog lub teeb, tus nqi thauj mus los thiab kev teeb tsa ntawm lub cable yuav raug txo, uas yuav ua rau muaj kev yooj yim rau kev tsim kho.
4. Kev saib xyuas yooj yim
Kev siv tooj liab-clad txhuas tuaj yeem txo qis kev ua haujlwm tsis ua haujlwm thiab tsis txhob muaj cov kab xev txhuas ntev qhwv los yog txhuas raj coaxial cable khoom. Vim muaj qhov sib txawv loj hauv thermal expansion coefficient ntawm tooj liab sab hauv tus neeg xyuas pib thiab aluminium sab nraud tus neeg xyuas pib ntawm lub cable, aluminium sab nrauv tus neeg xyuas pib ncav cuag lub caij ntuj sov kub, cov tooj liab sab hauv tus neeg xyuas pib yog rov qab thiab tsis tuaj yeem hu rau qhov elastic contact piece nyob rau hauv lub caij ntuj sov. F lub taub hau; Nyob rau hauv lub caij ntuj no txias heev, aluminium txheej conductor shrinks zoo heev, ua rau lub shielding txheej poob. Thaum lub coaxial cable siv tooj liab-clad txhuas sab hauv tus neeg xyuas pib, qhov sib txawv ntawm thermal expansion coefficient ntawm nws thiab txhuas sab nraud yog me me. Thaum qhov kub hloov pauv, qhov txhaum ntawm cov tub ntxhais cable raug txo qis heev, thiab kev sib kis tau zoo ntawm lub network tau txhim kho.
Cov saum toj no yog qhov kev ua tau zoo sib txawv ntawm tooj liab-clad aluminium hlau thiab ntshiab tooj liab hlau
Post lub sij hawm: Jan-04-2023