Cov ntaub ntawv thaiv dej yog cov khoom tseem ceeb hauv fiber ntau optic cables los tiv thaiv cov dej nkag, uas tuaj yeem ua rau cov teeb liab tsis zoo thiab ua rau cable tsis ua haujlwm. Ntawm no yog peb lub ntsiab dej thaiv cov khoom siv feem ntau siv hauv fiber ntau optic cables.
Nws ua haujlwm li cas?
Ib qho yog tias lawv yog passive, uas yog, lawv ncaj qha thaiv cov dej ntawm qhov chaw ntawm kev puas tsuaj rau lub sheath thiab tiv thaiv nws los ntawm kev nkag mus rau hauv lub optical cable. Xws li cov ntaub ntawv muaj kub yaj nplaum thiab thermal expansion ointment.
Lwm hom kev thaiv dej yog ua haujlwm. Thaum cov txheej tiv thaiv puas lawm, cov khoom thaiv cov dej nqus dej thiab nthuav dav. Li no thaiv cov dej nkag mus rau hauv cov kab hluav taws xob kho qhov muag, ua rau cov dej txwv tsis pub muaj ntau yam me me. Muaj cov tshuaj pleev dej swellable, dej thaiv cov xov paj thiab cov ntaub thaiv dej.
3 Lub ntsiab dej thaiv cov ntaub ntawv rau Fiber Optic Cables:
Fiber Cable Filling Compound / Gel
Raws li peb txhua tus paub, dej yog qhov txwv tsis pub tshaj plaws rau fiber ntau optic cable. Qhov laj thawj yog vim li cas dej tuaj yeem ua rau cov dej ncov ntawm cov fiber ntau kho qhov muag kom txo qis, thiab nws tuaj yeem ua rau cov microcracks ntawm optical fiber ntau ua rau hnyav dua los ntawm electrochemical kev txiav txim thiab nws thiaj li ua rau cov fiber ntau tawg.
Nyob rau hauv cov av noo (tshwj xeeb tshaj yog submarine fiber optic cable nteg nyob rau hauv dej tob ntawm 12 meters los yog ntau tshaj), dej yuav diffuse mus rau hauv lub sab hauv los ntawm lub fiber cable sheath los tsim free dej condensation. Yog tias nws tsis tswj tau, cov dej yuav txav mus los ntawm cov tub ntxhais fiber ntau longitudinally mus rau hauv lub thawv sib txuas. Nws yuav ua rau muaj kev phom sij rau kev sib txuas lus thiab tseem ua rau muaj kev cuam tshuam kev lag luam.
Lub luag haujlwm tseem ceeb ntawm cov dej thaiv cov fiber ntau cable filling compound tsis yog tsuas yog los tiv thaiv qhov ntev ntawm cov dej tsiv teb tsaws chaw hauv cov khoom siv kho qhov muag, tab sis kuj muab cov kab hluav taws xob kho qhov muag los txo qis sab nraud thiab kev co damping.
Filling compound nyob rau hauv optical cables yog tam sim no feem ntau xyaum nyob rau hauv zus tau tej cov optical fibers thiab fiber ntau cables. Vim tias nws tsis tsuas yog ua lub luag haujlwm ntawm cov dej tsis zoo thiab cov dej noo-pov thawj sealing, tab sis kuj tseem ua haujlwm tsis zoo thaum lub sijhawm tsim khoom thiab siv cov khoom siv kho qhov muag los tiv thaiv cov fiber ntau optical los ntawm kev cuam tshuam los ntawm kev ntxhov siab. Kev poob siab txhim kho nws txoj kev sib kis tau zoo thiab kev ntseeg tau.
Los ntawm txoj kev loj hlob ntawm optical cable filling compound, ointment yuav roughly muab faib ua peb tiam: thawj tiam yog hydrophobic kub-filling ointment; tiam thib ob yog txias-filling tshuaj pleev, thaum o o dej-thaiv filling ointment yog tam sim no nrov Filling ntaub ntawv rau optical fiber cables. Ntawm lawv, cov dej-swellable water-blocking filling paste yog ib hom hydrophilic filling khoom, uas yog tsuas yog sau los ntawm txias filling txheej txheem.
Daim kab xev thaiv dej
Fiber cable dej thaiv kab xev yog cov khoom siv dej qhuav swellable, uas yog siv dav hauv kev lag luam optical cable. Cov dej thaiv cov kab xev ua haujlwm ntawm kev sib khi, kev tiv thaiv dej, kev tiv thaiv dej noo, thiab kev tiv thaiv buffering hauv optical cables tau lees paub los ntawm tib neeg. Nws ntau yam thiab kev ua tau zoo tau txuas ntxiv txhim kho thiab ua tiav nrog kev txhim kho ntawm cov kab hluav taws xob kho qhov muag.
Cov dej thaiv kab xev rau cov kab hluav taws xob kho qhov muag tuaj yeem muab faib ua ob-sided sandwich dej thaiv daim kab xev, ib sab txheej dej thaiv kab xev thiab laminated dej thaiv daim kab xev. Cov kab xev dej-thaiv yog tsim los ntawm kev nplaum super gouache ntawm ob txheej ntawm cov ntaub tsis-woven. Nws yog tus cwj pwm los ntawm kev nthuav dav qhov siab ntawm 5 hli, tab sis lub thickness ntawm cov ntaub thaiv dej kuj tseem ntau dua 0.35mm. Nyob rau tib lub sijhawm, cov resin no yuav plam plua plav thaum lub sijhawm tsim khoom, uas yuav ua rau muaj teeb meem ib puag ncig.
Dej thaiv cov xov paj
Dej thaiv cov xov paj hauv fiber ntau optic cable feem ntau yog tsim los ntawm ob ntu, ib feem yog nthuav fiber ntau lossis nthuav cov hmoov uas muaj polyacrylate. Thaum nws nqus dej, cov super absorbent yuav yuam nws cov saw molecular kom ncab tawm ntawm lub xeev curled, ua rau nws ntim kom nthuav dav sai, yog li paub txog cov dej thaiv kev ua haujlwm. Lwm qhov yog ib qho kev txhawb zog rib tsim los ntawm nylon lossis polyester, uas feem ntau muab lub zog tensile thiab elongation ntawm cov xov paj.
Lub peev xwm nqus dej ntawm lub polymer dej-absorbing resin yog siab dua li ntawm cov molecular expansion tshwm sim los ntawm ion repulsion ntawm polymer electrolyte thiab qhov tshwm sim ntawm kev sib cuam tshuam ntawm molecular expansion tshwm sim los ntawm lub network qauv thiab kev cuam tshuam ntawm molecular expansion. .
Cov dej-absorbent resin yog cov khoom siv molecular siab thiab yog li ntawd muaj cov yam ntxwv zoo ib yam. Dej thaiv kev ua haujlwm ntawm qhov kho qhov muag cable dej thaiv cov xov paj yog siv cov dej thaiv cov xov paj fiber ntau lub cev kom nrawm nrawm los tsim cov ntim loj ntawm jelly. Kev nqus dej tuaj yeem ncav cuag ntau lub sijhawm ntawm nws tus kheej ntim, xws li whitin thawj feeb ntawm kev sib cuag dej, txoj kab uas hla tuaj yeem nthuav dav ntawm li 0.5 hli mus txog 5 hli. Thiab cov dej tuav lub peev xwm ntawm cov gel yog qhov muaj zog heev, uas tuaj yeem tiv thaiv kev loj hlob ntawm cov ntoo dej, yog li tiv thaiv kev nkag mus tsis tu ncua thiab kev tawm ntawm cov dej, thiab ua tiav lub hom phiaj ntawm kev thaiv dej. Dej thaiv cov yarns tau dav siv hauv cov hlau armored fiber optic cables.
Cov dej thaiv cov ntaub ntawv no yog qhov tseem ceeb rau kev ua kom ntseeg tau ntev thiab kev ua tau zoo ntawm fiber ntau optic cables, tshwj xeeb tshaj yog nyob rau sab nraum zoov thiab hauv av uas raug cov dej noo yog ib qho kev sib tw.