Cov khoom siv lossis cov cuab yeej siv los ncua cov teeb liab hluav taws xob los ntawm qee lub sijhawm hu ua kab qeeb. Fiber optic ncua sij hawm yuav tsum muaj lub tiaj tus amplitude - tus yam ntxwv zaus thiab ib tug tej yam theem hloov yam ntxwv (los yog ncua zaus tus yam ntxwv) nyob rau hauv lub passband, tsim nyog impedance, thiab tsawg attenuation. Rau cov teeb liab analog, inductors thiab capacitors feem ntau yog siv, los yog coaxial cables thiab helical xov hlau yog siv ncaj qha; rau cov teeb liab digital, them nyiaj- cov khoom siv sib txuas lossis cov khoom siv acoustic yoj siv tau.
Fiber optic ncua kab yog dav siv nyob rau hauv radar, hluav taws xob computers, xim TV systems, kev sib txuas lus systems, thiab ntsuas ntsuas (xws li oscilloscopes).
Fiber optic ncua kab feem ntau muab faib ua ob pawg: electromagnetic ncua kab thiab ultrasonic ncua kab. Electromagnetic ncua kab muaj ncua sij hawm los ntawm ob peb nanoseconds mus rau kaum ntawm microseconds, thiab lawv amplitude - zaus cov yam ntxwv feem ntau yog tsawg-pass. Thaum qhov ncua sij hawm siab tshaj li ob peb microseconds, 3 dB bandwidth tsuas yog qis dua ob peb megahertz. Ultrasonic ncua kab muaj ncua sij hawm los ntawm ob peb microseconds mus rau ntau txhiab microseconds, thiab lawv amplitude -frequency specifications yog band-pass, nrog nruab nrab zaus mus txog pua pua megahertz los yog siab dua.
Fiber optic ncua kab yog qhov paub tab hauv kev txhim kho, yooj yim hauv kev tsim khoom, pheej yig, thiab siv dav. Ultrasonic ncua kab, tshwj xeeb tshaj yog nto acoustic yoj kab ncua, yog tas li raug tsim kom tau raws li ntau yam kev siv. Hais txog cov yam ntxwv thiab kev siv, ob hom kab ncua sij hawm txhua tus muaj lawv tus kheej zoo thiab ntxiv rau ib leeg.
