Fiber Optic Sensor
Lub fiber optic sensor yog tsim los ntawm lub teeb ci, qhov teeb meem fiber ntau, qhov tawm fiber ntau, lub teeb modulator, lub teeb pom kev, thiab demodulator.Lub hauv paus ntsiab lus tseem ceeb yog xa lub teeb ntawm lub teeb mus rau qhov chaw hloov kho los ntawm qhov xwm txheej fiber ntau, thiab lub teeb cuam tshuam nrog cov ntsuas ntsuas sab nraud hauv thaj chaw hloov kho kom pom cov khoom siv kho qhov muag ntawm lub teeb (xws li kev siv, wavelength, zaus. , theem, sib txawv li qub, thiab lwm yam) tshwm sim.Lub teeb liab hloov pauv dhau los ua lub teeb pom kev hloov pauv, uas tom qab ntawd xa mus rau photodetector thiab demodulator los ntawm kev tawm fiber ntau kom tau txais cov ntsuas ntsuas.
Optical fiber ntau sensors tuaj yeem muab faib ua ob pawg raws li hom qauv: ib qho yog qhov ua haujlwm (sensing) sensor;Lwm qhov yog qhov tsis ua haujlwm (lub teeb kis tau tus mob) sensor.
Functional Sensor
Siv cov khoom siv kho qhov muag (los yog cov khoom siv kho qhov muag tshwj xeeb) nrog kev nkag siab zoo thiab kev paub txog kev muaj peev xwm rau cov ntaub ntawv sab nraud raws li lub ntsiab lus pom los hloov lub teeb xa mus rau hauv cov khoom siv kho qhov muag los hloov qhov kev siv, theem, zaus lossis polarization ntawm lub teeb kis.Los ntawm demodulating lub teeb liab modulated, ntsuas lub teeb liab tau txais.
Cov fiber ntau optical tsis yog tsuas yog lub teeb qhia nruab nrab xwb, tab sis kuj yog lub ntsiab lus rhiab, thiab ntau hom optical fiber feem ntau yog siv.
Qhov zoo: compact qauv thiab siab rhiab heev.Qhov tsis zoo: yuav tsum muaj cov fibers tshwj xeeb optical, thiab tus nqi siab.Piv txwv li: fiber optic gyroscopes, fiber optic hydrophones, thiab lwm yam.
Tsis ua haujlwm sensor
Nws siv lwm cov khoom rhiab heev los ntsuas qhov kev hloov pauv.Optical fiber tsuas yog siv los ua qhov sib kis ntawm cov ntaub ntawv, thiab ib hom optical fiber ntau feem ntau siv.Cov fiber ntau kho qhov muag tsuas yog ua lub luag haujlwm hauv kev taw qhia lub teeb, thiab lub teeb raug ntsuas thiab hloov kho ntawm cov khoom siv fiber ntau optical rhiab heev.
Qhov zoo: Tsis tas yuav tsum muaj cov fibers tshwj xeeb thiab lwm yam thev naus laus zis tshwj xeeb, yooj yim rau kev siv, thiab tus nqi qis.Disadvantages: tsawg rhiab heev.Feem ntau ntawm cov tswv yim yog cov uas tsis yog-functional optical fiber sensors.