Fiber Optical fiber ne da aka yi da gilashi ko filastik, kuma fiber ɗin kanta yana da rauni sosai kuma yana karyewa cikin sauƙi. Kuma sanya ƙaramin fiber a cikin jaket ɗin filastik yana ba shi damar lanƙwasa ba tare da karye ba. Kebul ɗin tare da fiber na gani wanda aka nannade a cikin jaket ɗin kariya shine kebul na gani. Za a iya tanƙwara kebul na gani yadda ake so?
Tun da fiber ɗin yana da damuwa da damuwa, lanƙwasa shi na iya haifar da siginar gani ta ɗigo ta hanyar faifan fiber, kuma yayin da lanƙwasawa ya yi tsayi, siginar gani zai ƙara zubowa. Lankwasawa kuma na iya haifar da microcracks wanda zai iya lalata fiber ɗin har abada. Ƙara zuwa matsala, maki microflex yana da wuya a samu kuma yana buƙatar kayan gwaji masu tsada, aƙalla gadoji suna buƙatar tsaftacewa ko maye gurbinsu. Lankwasawa fiber na iya haifar da attenuation fiber. Adadin attenuation saboda lankwasa fiber yana ƙaruwa yayin da radius na curvature ya ragu. Attenuation saboda lankwasawa ya fi girma a 1550 nm fiye da a 1310 nm, har ma mafi girma a 1625 nm. Don haka, lokacin shigar da masu tsalle-tsalle na fiber, musamman a cikin mahalli mai yawa na cabling, kada a lanƙwasa jumper fiye da radius ɗin lanƙwasa da aka yarda da shi. To menene madaidaicin radius na curvature?
Radius lanƙwasa fiber shine kusurwar da za a iya lanƙwasa fiber ɗin a kowane wuri. Radiyoyin lanƙwasa fiber sun bambanta ga kowane igiyoyi ko igiyoyin faci kuma suna iya bambanta dangane da nau'in kebul ko yadda aka kera ta. Matsakaicin radius na lanƙwasawa ya dogara da diamita da nau'in kebul na gani, gabaɗaya ana amfani da dabarar: ƙaramin lanƙwasawa radius = diamita na waje na kebul na gani x da yawa na kebul na gani.
Sabon ma'aunin ANSI/TIA/EIA-568B.3 yana bayyana mafi ƙarancin ma'aunin radius na lanƙwasa da matsakaicin ƙarfi don 50/125 micron da 62.5/125 micron fiber optic igiyoyi. Matsakaicin radius na lanƙwasa zai dogara da takamaiman kebul na fiber optic. Idan babu tashin hankali, radius na lanƙwasawa na kebul na gani gabaɗaya yakamata ya zama ƙasa da sau goma na waje diamita (OD) na kebul na gani. Karkashin lodawa mai ƙarfi, radius na lanƙwasawa na kebul na gani shine diamita na waje na kebul na gani sau 15. Matsayin masana'antu na igiyoyin facin yanayi guda ɗaya na gargajiya yawanci suna ƙayyadad da ƙaramin lanƙwasa radius sau goma na waje diamita na kebul ɗin jaket ko inci 1.5 (38 mm), kowace wacce ta fi girma. Fiber G652 da aka saba amfani da ita yana da mafi ƙarancin lanƙwasa radius na 30mm.
G657, wanda aka yi amfani da shi a cikin 'yan shekarun nan, yana da ƙaramin lanƙwasa radius, ciki har da G657A1, G657A2 da G657B3. Wannan nau'in fiber yana dogara ne akan fiber na G652D, wanda ke haɓaka halayen haɓakar lanƙwasa da halaye na geometric na fiber, ta haka inganta halayen haɗin fiber, wanda kuma aka sani da lankwasawa attenuation fiber mara nauyi. Ana amfani da shi a cikin FTTx, FTTH, dace don amfani a cikin ƙananan wurare na cikin gida ko sasanninta.
Dukansu fashewar fiber da haɓaka haɓakawa na iya yin tasiri mai mahimmanci akan amincin cibiyar sadarwa na dogon lokaci, farashin aiki na cibiyar sadarwa, da ikon kulawa da haɓaka tushen abokin ciniki. Don haka, muna buƙatar sanin ƙaramin radius na lanƙwasa fiber don kiyaye kebul ko igiyar facin cikin kyakkyawan yanayin aiki.
Lokacin aikawa: Nov-11-2022
