Selelekela hoBalance Photodetector(Optoelectronic Balance Detector)
Balance Photodetector e ka aroloa ka mofuta oa fiber optic coupling le mofuta oa spatial optical coupling ho latela mokhoa oa ho kopanya oa optical. Ka hare, e na le li-photodiode tse peli tse tsamaellanang haholo, molumo o tlase oa lerata le phahameng la bandwidth transimpedance amplifier, le module ea motlakase oa lerata le tlase haholo. E na le litšoaneleho tsa karo-karolelano e phahameng ea ho hana mokhoa o tloaelehileng, lerata le tlaase haholo, le bandwidth e phahameng, 'me e sebelisoa haholo tšimong ea puisano e lumellanang ea optical. E fetohile sebaka sa ho etsa lipatlisiso bakeng sa likhoebo le liunivesithi tsa linaha tse fapaneng lilemong tsa morao tjena.
Molao-motheo oa ho sebetsa oa Balance Photodetector (Optoelectronic Balance Detector)
Balance Photodetector e sebelisa li-photodiode tse peli maemong a leeme e le yuniti e amohelang leseli. Ha o amohela lets'oao la leseli, photocurrent e hlahisoang ke li-photodiode tse peli e ea tlosoa ebe e kopanngoa le amplifier ea transimpedance ho fetolela lets'oao la hajoale hore e be lets'oao la motlakase bakeng sa tlhahiso. Tšebeliso ea sebopeho sa ho itšehla thajana e ka hatella ka nepo lets'oao le tloaelehileng le hlahisitsoeng ke leseli la oscillator le lefifi la hona joale, la eketsa lets'oao la mokhoa o fapaneng, 'me ho isa boholeng bo itseng ho ntlafatsa bokhoni ba ho lemoha ba mats'oao a bobebe a bobebe.
Melemo: Karolelano e phahameng ea ho hana mokhoa o tloaelehileng, kutlo e phahameng, le bandwidth e phahameng ea ho lemoha li ka kopana le maemo a fapaneng a ts'ebeliso.
Mefokolo: Matla a optical a tlaase a tlaase, a loketse feela ho lemoha leseli le fokolang, ho kopanya ho hloka ho ntlafatsoa.
FIG: Sets'oants'o sa melao-motheo ea ts'ebetso ea mochini oa ho leka-lekanya
Mekhahlelo ea ts'ebetso ea Balance Photodetector (OptoelectronicMohloli oa ho leka-lekanya)
1. Karabelo
Karabelo e bolela bokhoni ba photodiode ho fetolela mats'oao a leseli ho photocurrent, e leng karolelano ea photocurrent ho matla a khanya. Ho khetha photodiode e nang le karabelo e phahameng ho ka ntlafatsa kutloisiso ea Balance Photodetector.
Karabelo e bolela bokhoni ba photodiode ho fetolela mats'oao a leseli ho photocurrent, e leng karolelano ea photocurrent ho matla a khanya. Ho khetha photodiode e nang le karabelo e phahameng ho ka ntlafatsa kutloisiso ea Balance Photodetector.
2. Bophahamo ba motlakase
Bophahamo ba marang-rang bo emela maqhubu a matšoao ao ho ona amplitude ea pontšo ea tlhahiso ea Balance Photodetector e senyehang ka -3dB, 'me e amana le bokhoni ba parasitic ea photodiode, boholo ba transimpedance, le sehlahisoa sa phaello ea bandwidth ea amplifier ea ts'ebetso.
3. Karolelano ea ho hana mokhoa o tloaelehileng
Karolelano ea ho hana mokhoa o tloaelehileng o sebelisoa ho lekanya tekanyo ea khatello ea matšoao a tloaelehileng ka li-detectors tse leka-lekaneng, 'me lihlahisoa tsa khoebo ka kakaretso li hloka ho hana mokhoa o tloaelehileng oa 25dB.
4.NEP
Noise Equivalent Power: Matla a lets'oao la ho kenya a hlokehang ka tekanyo ea lerata-ho-lerata la 1, e leng parameter ea bohlokoa bakeng sa ho lekanya ts'ebetso ea lerata ea tsamaiso. Likarolo tse kholo tsa lerata la detector le leka-lekaneng ke lerata le hasanyang la optical le lerata la motlakase.
Tšebeliso ea Balance Photodetector (Optoelectronic Balance Detector)
Lilemong tsa morao tjena, Balance Photodetector e 'nile ea sebelisoa haholo mafapheng a kang laser wind radar, laser vibration measurement, fiber optic sensing, leseli le fokolang la ho lemoha, ho lemoha spectral, ho lemoha khase, joalo-joalo.
Nako ea poso: Feb-06-2025