INNO fiber optic kub sensors ,ntsuas kub ntsuas tshuab.
Fiber optic kub sensor, Intelligent soj ntsuam system, Distributed fiber optic chaw tsim tshuaj paus nyob rau hauv Suav teb
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Lub hauv paus ntsiab lus ntawm Fluorescence Lifetime Temperature Measurement
Tom qab irradiated nrog lub teeb, cov electrons nyob rau hauv cov ntaub ntawv rhiab heev absorb photons thiab hloov los ntawm qis zog theem mus rau lub xeev siab zog theem, thiab tom qab ntawd rov qab mus rau qib qis zog los ntawm kev hloov hluav taws xob, emitting fluorescence. Cov fluorescence emissions ruaj khov tom qab lub teeb excitation raug tshem tawm nyob ntawm lub neej ntawm lub xeev zoo siab. Qhov no emission feem ntau decays exponentially, thiab lub sij hawm tas li ntawm exponential decay tuaj yeem siv los ntsuas lub neej ntawm lub xeev zoo siab, uas yog hu ua fluorescence lifetime lossis fluorescence decay time.
Fluorescence lifetime kub sensor
Qhov ntev ntawm fluorescence lub neej nyob ntawm qhov kub thiab txias. Fluorescence lifetime kub sensors emit linear spectra nyob rau hauv lub pom spectrum tom qab tej yam tsawg lub ntiaj teb cov tshuaj fluorescent yog irradiated thiab zoo siab los ntawm ultraviolet lub teeb., uas yog, fluorescence thiab nws afterglow yog lub luminescence tom qab excitation nres. Yog hais tias tus parameter ntawm fluorescence yog modulated los ntawm kub thiab kev sib raug zoo yog monotonic, Qhov kev sib raug zoo no tuaj yeem siv rau kev ntsuas kub. Qhov kev siv ntawm linear spectrum muaj feem xyuam rau qhov kev siv ntawm lub teeb excitation thiab qhov kub ntawm cov khoom fluorescent.. Yog lub teeb qhov chaw nyob tas li, Qhov kev siv ntawm cov fluorescent linear spectrum yog ib qho txiaj ntsig ntawm qhov kub thiab txias thaum lub sijhawm. Feem ntau, qhov qis dua sab nraud, qhov muaj zog fluorescence thiab qhov qeeb qeeb ntawm kev lwj ntawm afterglow. Los ntawm kev lim tawm cov excitation spectrum los ntawm lub lim thiab ntsuas qhov kev siv ntawm cov fluorescence afterglow emission spectral kab, qhov ntsuas kub tuaj yeem txiav txim siab. Tab sis txoj kev ntsuas no yuav tsum muaj kev ruaj khov excitation lub teeb siv thiab teeb liab channel, uas nyuaj rau ua tiav, yog li nws tsis tshua siv. Ntxiv rau, Lub sijhawm lwj tas li ntawm fluorescence afterglow kuj yog ib qho txiaj ntsig ntawm qhov kub thiab txias.
Los ntawm txoj kev xav ntawm semiconductor txoj kev xav, qhov lwj thiab ploj ntawm afterglow yog quenching txheej txheem ntawm lub teeb. Qhov kub siab dua, qhov muaj zog lub lattice vibration, phonons ntau koom nrog hauv kev nqus, thiab lub teeb quenching sai dua. Yog li ntawd, Qhov kub ntawm cov khoom fluorescent txiav txim siab qhov ceev ntawm lub teeb quenching, uas yog, qhov loj ntawm qhov lwj lub sij hawm tas li.
Qhov zoo tshaj plaws ntawm kev siv fluorescence lub neej rau kev ntsuas kub yog tias qhov kub hloov pauv kev sib raug zoo yog txiav txim siab los ntawm lub neej fluorescence., thiab tsis cuam tshuam los ntawm lwm yam sab nraud xws li kev hloov pauv hauv excitation light source siv, fiber ntau kis efficiency, los yog coupling degree. Yog li ntawd, nws muaj qhov zoo ntawm qhov ntsuas qhov ntsuas kub uas siv cov fluorescence ncov siab lossis siv qhov sib piv raws li qhov ntsuas kub ntsuas., thiab yog raws li lub hauv paus ntsiab lus ntawm fiber optic ntsuas kub.
