Isingeniso kuI-Balance Photodetector(I-Optoelectronic Balance Detector)
I-Balance Photodetector ingahlukaniswa ibe uhlobo lwe-fiber optic coupling kanye nohlobo lokuxhumanisa lwe-spatial optical ngokuya ngendlela yokuhlanganisa i-optical. Ngaphakathi, iqukethe ama-photodiode amabili ahambisana kakhulu, umsindo ophansi, imojuli yesekethe ye-bandwidth transimpedance amplifier, kanye nemojula yamandla omsindo ophansi kakhulu. Inezici zezinga eliphezulu lokwenqatshwa kwemodi evamile, umsindo we-ultra-low, kanye nomkhawulokudonsa ophezulu, futhi isetshenziswa kabanzi emkhakheni wokuxhumana okuhambisanayo kwe-optical. Sekuyisizinda socwaningo samabhizinisi namanyuvesi emazweni ahlukahlukene eminyakeni yakamuva.
Umgomo wokusebenza weBalance Photodetector (I-Optoelectronic Balance Detector)
I-Balance Photodetector isebenzisa ama-photodiode amabili esimweni sokuhlehla njengeyunithi yokwamukela ukukhanya. Lapho ithola isignali yokukhanya, i-photocurrent ekhiqizwe ama-photodiode amabili iyasuswa futhi ihlanganiswe ne-transimpedance amplifier ukuguqula isignali yamanje ibe isignali kagesi ukuze ikhiphe. Ukusetshenziswa kwesakhiwo sokuzinciphisa kungacindezela ngempumelelo isignali yemodi evamile eyethulwe ukukhanya kwe-oscillator yendawo kanye nobumnyama bamanje, kukhuphule isignali yemodi yokuhlukanisa, futhi ngezinga elithile kuthuthukise ikhono lokubona lamasignali okukhanya abuthakathaka.
Izinzuzo: Isilinganiso esiphakeme sokwenqatshwa kwemodi evamile, ukuzwela okuphezulu, kanye nomkhawulokudonsa wokutholwa okuphezulu kungahlangabezana nezimo ezihlukahlukene zohlelo lokusebenza.
Ukungalungi: Amandla okubona agcwele kancane, afanele kuphela ukutholwa kokukhanya okubuthakathaka, ukuhlanganisa kudinga ukuthuthukiswa.
I-FIG: Umdwebo wesimiso sokusebenza womtshina webhalansi
Amapharamitha wokusebenza weBalance Photodetector (OptoelectronicI-Balance Detector)
1. Ukusabela
Ukusabela kubhekisela ekusebenzeni kahle kwe-photodiode ekuguquleni amasiginali okukhanya abe yi-photocurrent, okuyisilinganiso se-photocurrent namandla okukhanya. Ukukhetha i-photodiode enokusabela okuphezulu kungathuthukisa ngempumelelo ukuzwela kwe-Balance Photodetector.
Ukusabela kubhekisela ekusebenzeni kahle kwe-photodiode ekuguquleni amasiginali okukhanya abe yi-photocurrent, okuyisilinganiso se-photocurrent namandla okukhanya. Ukukhetha i-photodiode enokusabela okuphezulu kungathuthukisa ngempumelelo ukuzwela kwe-Balance Photodetector.
2. Umkhawulokudonsa
I-bandwidth imelela imvamisa yesignali lapho i-amplitude yesiginali yokuphumayo ye-Balance Photodetector yonakala ngo -3dB, futhi ihlobene namandla e-parasitic we-photodiode, usayizi we-transimpedance, kanye nomkhiqizo wokuzuza komkhawulokudonsa we-amplifier yokusebenza.
3. Isilinganiso sokwenqatshwa kwemodi evamile
Isilinganiso sokwenqatshwa kwemodi evamile sisetshenziswa ukukala izinga lokucindezelwa kwamasignali emodi evamile ngezithonga ezilinganiselayo, futhi imikhiqizo yokuthengisa ngokuvamile idinga ukunqatshwa kwemodi evamile okungenani engu-25dB.
4.NEP
Amandla Alingana Nomsindo: Amandla esignali yokokufaka adingekayo esilinganisweni sesignali-kuya-nomsindo esingu-1, okuyipharamitha ebalulekile yokulinganisa ukusebenza komsindo wesistimu. Izingxenye eziyinhloko zomsindo womtshina olinganiselayo umsindo ohlakazekayo obonakalayo nomsindo kagesi.
Ukusetshenziswa kwe-Balance Photodetector (I-Optoelectronic Balance Detector)
Eminyakeni yamuva, i-Balance Photodetector isetshenziswe kakhulu emikhakheni efana ne-laser wind radar, ukukala kokudlidliza kwe-laser, inzwa ye-fiber optic, ukutholwa kokukhanya okubuthaka okubuthaka, ukubonwa kokubukwayo, ukutholwa kwegesi, njll. Ucwaningo lwejubane eliphezulu, umkhawulokudonsa ophezulu, umsindo ophansi, isilinganiso esiphezulu sokwenqatshwa kwemodi evamile, kanye nokuzwela okuphezulu kwezitholi ezilinganiselayo kwenze ukuthuthukiswa kokusetshenziswa kwamandla kuphansi kanye nokuhlangana kohlelo lokusebenza okuphansi.
Isikhathi sokuthumela: Feb-06-2025