Kev Taw Qhia rauLub Tshuab Nrhiav Duab Sib Npaug(Optoelectronic Balance Detector)
Lub Tshuab Ntsuas Qhov Sib Npaug muaj peev xwm muab faib ua hom fiber optic coupling thiab hom spatial optical coupling raws li txoj kev sib txuas optical. Sab hauv, nws muaj ob lub photodiodes sib phim zoo heev, lub suab qis, bandwidth siab transimpedance amplifier circuit module, thiab lub zog ultra-low noise. Nws muaj cov yam ntxwv ntawm high common mode rejection ratio, ultra-low noise, thiab bandwidth siab, thiab siv dav hauv kev sib txuas lus optical. Nws tau dhau los ua qhov chaw tshawb fawb rau cov tuam txhab thiab cov tsev kawm qib siab hauv ntau lub tebchaws hauv xyoo tas los no.
Txoj cai ua haujlwm ntawm Balance Photodetector (Optoelectronic Balance Detector)
Lub Balance Photodetector siv ob lub photodiodes hauv lub xeev rov qab bias ua lub chaw txais lub teeb. Thaum txais lub teeb liab, lub photocurrent tsim los ntawm ob lub photodiodes raug rho tawm thiab txuas nrog lub transimpedance amplifier los hloov lub teeb liab tam sim no mus rau hauv lub teeb liab voltage rau cov zis. Kev siv cov qauv txo tus kheej tuaj yeem ua kom lub teeb liab hom sib xws uas tau qhia los ntawm lub teeb oscillator hauv zos thiab tam sim no tsaus ntuj, ua kom lub teeb liab hom sib txawv nce ntxiv, thiab qee qhov txhim kho lub peev xwm nrhiav tau ntawm cov teeb liab tsis muaj zog.
Qhov Zoo: Qhov piv txwv tsis lees txais hom kev sib xws siab, qhov rhiab heev siab, thiab qhov bandwidth nrhiav tau siab tuaj yeem ua tau raws li ntau yam xwm txheej ntawm daim ntawv thov.
Qhov tsis zoo: Lub zog kho qhov muag qis, tsuas yog tsim rau kev pom lub teeb tsis muaj zog, kev koom ua ke yuav tsum tau txhim kho.
DUAB: Daim duab qhia txog kev ua haujlwm ntawm lub tshuab ntsuas qhov sib npaug
Cov kev ua tau zoo ntawm Balance Photodetector (Optoelectronic)Kev Ntsuas Qhov Sib Npaug)
1. Kev teb sai
Kev teb sai yog hais txog qhov ua tau zoo ntawm lub photodiode hauv kev hloov cov teeb liab teeb mus rau hauv photocurrent, uas yog qhov sib piv ntawm photocurrent rau lub zog teeb. Kev xaiv lub photodiode uas muaj kev teb sai dua tuaj yeem txhim kho qhov rhiab heev ntawm Balance Photodetector.
Kev teb sai yog hais txog qhov ua tau zoo ntawm lub photodiode hauv kev hloov cov teeb liab teeb mus rau hauv photocurrent, uas yog qhov sib piv ntawm photocurrent rau lub zog teeb. Kev xaiv lub photodiode uas muaj kev teb sai dua tuaj yeem txhim kho qhov rhiab heev ntawm Balance Photodetector.
2. Qhov Bandwidth
Qhov bandwidth sawv cev rau qhov zaus ntawm lub teeb liab uas qhov tso zis teeb liab amplitude ntawm Balance Photodetector lwj los ntawm -3dB, thiab muaj feem cuam tshuam nrog lub peev xwm parasitic ntawm photodiode, qhov loj ntawm transimpedance, thiab qhov nce bandwidth khoom ntawm lub amplifier ua haujlwm.
3. Hom kev tsis lees txais hom sib xws
Qhov piv txwv tsis lees txais hom kev sib koom ua ke yog siv los ntsuas qib kev tshem tawm ntawm cov teeb liab hom kev sib koom ua ke los ntawm cov khoom siv ntsuas sib npaug, thiab cov khoom lag luam feem ntau xav tau qhov tsawg kawg nkaus tsis lees txais hom kev sib koom ua ke ntawm 25dB.
4.NEP
Lub zog sib npaug ntawm lub suab nrov: Lub zog ntawm lub teeb liab nkag uas xav tau ntawm qhov sib piv ntawm lub teeb liab thiab lub suab nrov ntawm 1, uas yog ib qho tseem ceeb rau kev ntsuas qhov ua tau zoo ntawm lub suab nrov ntawm lub kaw lus. Cov khoom tseem ceeb ntawm lub suab nrov ntawm lub tshuab ntes sib npaug yog lub suab nrov ntawm lub teeb pom kev zoo thiab lub suab nrov hluav taws xob.
Daim Ntawv Thov ntawm Kev Sib Npaug Photodetector (Optoelectronic Balance Detector)
Nyob rau xyoo tas los no, Balance Photodetector tau siv dav hauv cov teb xws li laser cua radar, laser vibration ntsuas, fiber optic sensing, tsis muaj zog lub teeb coherent nrhiav, spectral nrhiav, roj nrhiav, thiab lwm yam. Kev tshawb fawb ntawm kev kub ceev, bandwidth siab, suab qis, siab hom tsis lees paub piv, thiab kev rhiab heev ntawm cov khoom sib npaug nrhiav tau ua rau muaj kev tawg ua tej daim thiab tab tom tsim mus rau kev sib koom ua ke siab thiab kev siv hluav taws xob tsawg kom tau raws li cov xwm txheej thov sib txawv.
Lub sijhawm tshaj tawm: Lub Ob Hlis-06-2025