Amakhadi e-OTDR asetshenziselwa i-DCI Box
Isibonisi sesizinda sesikhathi se-OTDR optical, esingalinganisa ubude befayibha, ukuncishiswa kokudluliselwa kwefayibha ye-optical, ukuncishiswa kwe-splice kanye nendawo yamaphutha, njll. Singasetshenziswa ekuqapheni ikhebula le-optical fiber, ukwakhiwa kwekhebula le-fiber optic kanye nokugcinwa kwalo.
Ngesikhathi sokuhlolwa kwe-OTDR, i-pulse ekhiqizwe yi-pulse generator iqhuba i-LD ukuze ikhiqize ama-pulse okukhanya, afakwa ku-optical fiber ukuze ahlolwe nge-directional coupler. I-light pulse iye ku-optical fiber, ngenxa yokungcola okungaphakathi ku-fibre, amabhamuza nokunye ukuhlakazeka kwenzeka, okunye kwakho kuhlakazeke emuva okwaziwa ngokuthi i-backward scattered light (BACK SCATTERINGLIGHT), kanye nokukhanya okukhanyayo kwe-FRESENL okukhiqizwe ubuso bokuphela kwe-fibre obungalingani, kanye nokukhanya okubuyela ku-coupler, ku-photodiode, ku-electrical pulse. Lokhu kukhanya okukhanyayo kubuthakathaka kakhulu, ngakho-ke kudluliselwa ngokuphindaphindiwe, kuqoqwe, kuphindwe kabili, kukhuliswe, kulinganiswe futhi kucutshungulwe, bese kunikezwa idatha epulatifomu yokuphathwa kwenethiwekhi. Ibonakala ngebanga eliphezulu eliguquguqukayo kanye nezinga eliphezulu lokuxazululwa.
Ishidi le-data OI-TDR Umsebenzi Ukusekelwa kwebanga lesixhumanisi se-fiber, ukuncishiswa, ukulahlekelwa okuphelele kanye neminye imingcele yokuhlolwa Isikhalainombolo 1isikhala Amachweba Ihlinzeka ngezindawo zokuhlola eziyi-8 (ezikhethwe yi-optical switch), ezingaxhunywa ekuhlolweni kwesixhumanisi se-fiber optical esine-core 8 Ubude besikhathi obusebenzayo 1625 nm Ububanzi obuguqukayo ≥30 dB Ububanzi be-pulse 0.02 ~ 20 us Ibanga eliphezulu lokutholwa ≥80 km Ukunemba kokuhlolwa kokulahlekelwa ±0.5 dB Ukunemba kokulinganisa ububanzi <20 m Umcimbi ongaboni <10 m Indawo engasebenzi kahle yokunciphisa ukucindezeleka <20 m
Isicelo: Ilungele ukuxilongwa okusheshayo kanye nokuphathwa okuphakathi kwamaphutha e-optical fiber. Isetshenziselwa i-DCI Box.
