Dab tsi yog fiber ntau optic
Tso lus
Fiber Optic yog cov kis tau cov channel rau kho qhov muag thiab cov khoom tseem ceeb rau kev sib txuas lus fiber ntau.
Fiber Optic yog tsim ntawm cov tub ntxhais, cov txheej cladding, thiab sab nraud txheej txheem cylindrical nrog ntau txheej ntawm dielectric ntaub ntawv. Lub cev tseem ceeb ntawm cov tub ntxhais muaj fiber ntau yog silicon dioxide, uas tau sib xyaw nrog cov kab lus los nce cov ntsuas qhov tseeb ntawm cov khoom siv. Muaj cov cladding sab nraum cov tub ntxhais muaj kev sib txawv, uas muaj qhov sib txawv uas muaj zog dua li cov tub ntxhais muaj fiber ntau dua. Cov tub ntxhais hluav taws xob ua kom muaj zog dua yuav tsum ua kom pom cov cim optical yog feem ntau hauv cov tub rog fiber. Cov txheej txheej sab nraud ntawm cov cladding yog txheej txheej, tsuas yog siv los ua kom cov neeg kho tshuab lub zog ntawm lub fiber ntau, yog li ntawd lub fiber ntau tsis haum los ntawm lwm cov khoom sab nraud. Cov txheej txheej sab nraud ntawm cov fiber ntau optic cable yog lub tsho, uas tseem ua haujlwm ua txheej tiv thaiv.
Qhov ob yam ntxwv tseem ceeb ntawm Optical fibers yog attenuation thiab dispersion. Poob yog qhov ua kom tiav lossis dispersion ntawm cov teeb liab kho qhov muag ib ntu ntev, qhia hauv DB \/ KM. Qhov ntsuas no cuam tshuam nrog kev sib kis mus deb ntawm lub teeb liab kho qhov muag, thiab cov poob ntau dua, tus luv luv qhov kev sib nrug deb. Ntau cov microcomputer of elevator tswj tshuab feem ntau muaj luv hloov kis, yog li siv kho kho qhov muag yas siv tau los txo cov nqi. Cov dispersion ntawm kho qhov muag cov fibers yog feem ntau cuam tshuam nrog mem tes dav dav. Nyob rau hauv Mitsubishi ofator tswj tshuab, fiber ntau kev sib txuas lus yog siv rau cov ntaub ntawv sib kis ntawm pab pawg sib kis tau ntawm ob txoj kev sib kis ntawm ob txhais ib ncig ntawm cov electrators. Lub fiber optic ntaus ntawv siv hauv Mitsubishi elevators tsuas yog muaj lub teeb ci, lub teeb tau txais, thiab fiber ntau. Lub hauv paus lub teeb ci thiab lub teeb tau txais yog encapsulated nyob rau hauv lub tsau plug ntawm lub fiber ntau prectic txuas, thiab lub fiber ntau yog txuas nrog ntsaws.
