OkushaI-RF phezu kwefayibhaikhambi
Esimweni samanje esiyinkimbinkimbi kakhulu sikagesi kagesi kanye nokuvela okuqhubekayo kokuphazamiseka kwesignali, indlela yokufinyelela ukudluliselwa okuphezulu, okude nokuzinzile kwezibonakaliso zikagesi ze-wideband kuye kwaba yinselele ebalulekile emkhakheni wokulinganisa nokuhlola kwezimboni. Isixhumanisi se-RF over fiber analog broadband optical transceiver siyindlela entsha.ukudluliswa kwefayibha yokukhanyaikhambi elenzelwe ukubhekana nale nselele.
Le divayisi isekela ukuqoqwa kanye nokudluliswa kwezimpawu ze-wideband ngesikhathi sangempela kusuka ku-DC kuya ku-1GHz, futhi ingashintshwa kalula kumadivayisi ahlukahlukene okuthola, kufaka phakathi ama-probe wamanje, ama-probe aphezulu kanye nezinye izinsimbi zokulinganisa imvamisa ephezulu. Isiphelo sayo sokudlulisa sifakwe isikhombimsebenzisi sokufaka se-BNC esingashintshwa esingu-1 MΩ/50 Ω, esinokuhambisana okubanzi. Ngesikhathi sokucubungula izimpawu, izimpawu zikagesi ziyaguqulwa futhi ziguqulwe zibe izimpawu ezibonakalayo, ezibe sezidluliselwa ekugcineni kokwamukela ngemicu ye-optical yemodi eyodwa bese zibuyiselwa ngokunembile ezimpawini zikagesi zokuqala yi-module yokwamukela.
Kuhle ukusho ukuthi uchungechunge lwe-R-ROFxxxxT luhlanganisa indlela yokulawula izinga elizenzakalelayo (i-ALC), engamelana ngempumelelo nokuguquguquka kwesignali okubangelwa ukulahleka kwefayibha futhi iqinisekise ukusebenza njalo ngesikhathi sokudlulisa ibanga elide. Ngaphezu kwalokho, imodyuli yokudlulisa ifakwe i-attenuator eguquguqukayo nelungisekayo, esekela ukulungiswa okuthathu okuguquguqukayo okungu-1:1/10:1/100:1. Lokhu kuvumela abasebenzisi ukuthi bathuthukise izinga lokwamukela isignali ngokusekelwe ezimweni zangempela futhi bandise ububanzi obuguquguqukayo besistimu.
Ukuze kuhlangatshezwane nezidingo zokuhlolwa kwensimu noma kweselula, lolu chungechunge lwamamojula lusekela ukunikezwa kwamandla ebhethri kanye nokulawula okude, futhi lunemodi yokulinda ehlakaniphile engena ngokuzenzakalelayo esimweni samandla aphansi ngezikhathi zokungasebenzisi, okwandisa ngempumelelo impilo yebhethri yedivayisi. Izibani ze-LED ezikwiphaneli engaphambili zinikeza impendulo yesikhathi sangempela ngesimo sokusebenza, okuthuthukisa kakhulu ukusebenza nokusebenza kahle kwemishini.
Kungakhathaliseki ukuthi kusezimweni ezifana nokuqapha amandla, ukuhlolwa kwemvamisa yomsakazo, noma ukuhlolwa kocwaningo lwesayensi, uchungechunge lwe-R-ROFxxxxT lunganikeza abasebenzisi izixazululo zokudlulisela isignali kude ezithembekile, eziguquguqukayo, futhi ezilwa kakhulu nokuphazamiseka.
Incazelo Yomkhiqizo we-RF phezu kwefayibha
Uchungechunge lwe-R-ROFxxxxTIsixhumanisi se-RF phezu kwefayibhaIsixhumanisi se-analog broadband optical transceiver siyidivayisi yokudlulisa kude ye-fiber optic eyenzelwe ngqo ukulinganisa ngesikhathi sangempela izimpawu zikagesi ze-DC kuya ku-1GHz ezindaweni eziyinkimbinkimbi ze-electromagnetic. Imodyuli yokudlulisa ine-1 MΩ/50 Ω BNC input, engaxhunywa kumadivayisi ahlukahlukene okuzwa (ama-probe amanje, ama-probe aphezulu noma amadivayisi athile okulinganisa imvamisa ephezulu). Kumodyuli yokudlulisa, isignali kagesi yokufaka iyaguqulwa futhi iguqulwe ibe isignali ebonakalayo, ethunyelwa kumodyuli yokwamukela nge-fiber optical yemodi eyodwa. Imodyuli yokwamukela iguqula isignali yokukhanya ibuye ibe isignali kagesi. Ukudluliselwa kwesignali yokukhanya kulawulwa ngokulawula kwezinga okuzenzakalelayo ukuze kugcinwe ukusebenza okunembile nokuqhubekayo, kungathinteki ukulahleka kokukhanya. Womabili amamojula we-transceiver asekela ukunikezwa kwamandla ebhethri kanye nokulawula okude. Imojula yokudlulisa okubonakalayo ifaka ne-attenuator eguquguqukayo eguquguqukayo (1:1/10:1/100:1) yokulungisa izinga lesignali etholiwe ukuze kulungiselelwe ububanzi obuguquguqukayo. Ngaphezu kwalokho, lapho idivayisi ingasetshenziswa, ingafakwa kude kwimodi yokulinda enamandla aphansi ukuze kongiwe amandla ebhethri, futhi ukukhanya kwesibonakaliso se-LED kukhombisa isimo sokusebenza.
Izici zomkhiqizo
I-bandwidth ye-DC-500 MHZ/DC-1 GHZ ayikhethwa
Isinxephezelo sokulahlekelwa kokufakwa kokukhanya okuguquguqukayo
Inzuzo iyalungiseka futhi ububanzi obuguqukayo bokufaka bulungiselelwe
Isekela isilawuli kude futhi inamandla ebhethri, okwenza kube lula ukusetshenziswa ngaphandle
Isikhathi sokuthunyelwe: Novemba-17-2025