Cov hauv paus ntsiab lus ntawm fiber ntau optic sensors
Optical fiber yog ntawv luv luv ntawm optical fiber. Lub ntsiab lus tseem ceeb ntawm cov hluav taws xob fiber ntau yog silica, uas yog cov tub ntxhais muaj qhov tseem ceeb nrog qhov ntsuas qhov siab dua, ua rau lub ntsej muag uas muaj qhov ntsuas qis dua, thiab tiv thaiv txheej. Cov tub ntxhais yog cov iav lim tshiab uas muaj txoj kab uas hla ntawm 0.1 hli, thiab tus txheej txheem nthwv dej ua ntu zus uas ntim lub teeb rau hauv nws thiab tawm hauv cov axial kev taw qhia. Qhov pom ntawm cov khoom siv hluav taws xob fiber kho qhov muag tau tshwm sim los ntawm kev ua kom paub txog qhov cuam tshuam sab nraud ntawm qhov muaj fiber ntau. Hauv kev coj ua, tib neeg tau pom tias thaum lub fiber kho qhov muag tau raug hloov pauv mus rau ib puag ncig sab nraud, nws yuav ua rau kev hloov pauv ntawm cov nthwv dej tsis sib haum mus rau sab hauv cov kab hluav taws xob, thiab cov kev hloov pauv no muaj nyob hauv ib txoj cai lij choj nrog rau lwm yam sab nraud. Tsim kev tsim kho cov khoom siv fiber ntau kho qhov muag.
Optical fiber muaj qhov cuam tshuam zoo ntawm ntau yam tsis suav. Txhawm rau kawm lub ntsiab cai ntawm kev siv hluav taws xob fiber ntau yog kawm paub yuav ua li cas thiaj li siv tau cov teebmeem no ntawm cov ntsia hlau hluav taws xob, kom kawm txog kev sib cuam tshuam ntawm lub teeb nyob rau thaj chaw ntsuas nrog cov ntsuas ntsuas sab nraud, thiab kom paub lub luag haujlwm ntawm" kis" thiab" tso" cov ntsuas sab nraud ntsuas. Qhov no yog qhov ntsuas qhov kho qhov muag fiber ntau. Tub ntxhais.
Hauv cov tshuab sib txuas lus kho qhov muag, cov kab hluav taws xob tau siv los ua qhov nruab nrab rau kev sib kis ntev ntawm cov teeb liab lub teeb. Pom tseeb, hauv daim ntawv thov no, kev cuam tshuam sab nraud tsawg dua ntawm lub teeb liab kho qhov muag kis tau los ntawm cov hluav taws xob fiber ntau yog, zoo dua. Txawm li cas los xij, hauv qhov tseeb kis tau tus mob, cov kab hluav taws xob tau raug rau cov xwm txheej ib puag ncig sab nraud, xws li kub, siab, hluav taws xob teb thiab lwm yam xwm txheej sab nraud, uas yuav ua rau cov kev hloov pauv hauv optical fiber tsis xws li kev siv lub teeb, theem, zaus, polarization, thiab yoj yoj. Yog li no, tib neeg pom tias yog tias qhov kev hloov pauv ntawm lub teeb nthwv ntsuas hluav taws xob tuaj yeem ntsuas tau, qhov loj me ntawm cov khoom siv ntau lub cev uas ua rau qhov hloov pauv ntawm lub teeb yoj parameter tuaj yeem paub, thiab yog li qhov kho qhov muag fiber ntau thev naus laus zis tsim. Optical fiber sensing thev naus laus zis yog thev naus laus zis siv fiber ntau' s rhiab heev rau qee yam khoom siv ntawm lub cev kom hloov khoom siv sab nraud lub cev mus ua cov cim uas tuaj yeem ntsuas ncaj qha. Vim tias cov khoom siv hluav taws xob tsis zoo tsuas yog siv raws li kev tshaj tawm ntawm nruab nrab ntawm lub teeb yoj, tab sis kuj vim hais tias cov yam ntxwv tsis sib xws (amplitude, theem, lub xeev polarization, wavelength, thiab lwm yam) uas hais txog lub teeb yoj thaum lub teeb yoj tawm hauv cov xov hluav taws xob yog vim sab nraud lwm yam (xws li ntsuas qhov kub thiab txias, nruj, lim, qhov chaw sib nqus, hluav taws xob teb, thiab kev hloov chaw). , Kev sib hloov, thiab lwm yam) hloov pauv ncaj qha lossis tsis ncaj qha, kom lub ntsej muag hluav taws xob kuj tseem siv tau los ua cov ntsiab lus los tsom pom ntau yam hauv lub cev.
Daim duab saum toj no yog schematic daim duab ntawm lub teeb tsa optical fiber. Fiber optic sensors feem ntau yog ua los ntawm cov khoom siv hluav taws xob, kis tau tus kab mob fiber ntau, hnov qhov khoom lossis qhov chaw hloov kho, pom lub teeb thiab lwm qhov chaw. Cov tsis xws li lub teeb tawm, lub teeb yoj, qhov sib txawv, ntu, theem, lub xeev polarization, thiab hom kev faib tawm tuaj yeem hloov los ntawm lwm qhov kev cuam tshuam thaum muaj fiber ntau, tshwj xeeb tshaj yog kub, siab, nrawm, voltage, tam sim no, hloov chaw, kev co, tig, khoov thaum khoov, cov tshuaj lom thiab kom muaj nuj nqis thiab biochemical ntau cuam tshuam rau txoj kev kho qhov muag, cov tsis zoo no yuav hloov pauv. Cov khoom siv kho qhov muag fiber tau pom qhov loj me rau txhua qhov sib thooj ntawm lub cev ntau raws li kev sib raug zoo ntawm cov ntsuas nrog qhov hloov ntawm lwm yam.
