Siv cov hluav taws xob infrared los ua kom pom cov khoom, cov khoom nqus hluav taws xob infrared thiab hloov mus rau hauv lub zog hluav taws xob, uas yog tom qab ntawd rhuab.
Tso lus
Siv cov hluav taws xob infrared los ua kom pom cov khoom, cov khoom nqus hluav taws xob infrared thiab hloov mus rau hauv lub zog hluav taws xob, uas yog tom qab ntawd rhuab.
Infrared yog electromagnetic yoj. Nyob rau hauv lub hnub ci spectrum, nyob sab nraum lub liab kawg ntawm pom lub teeb, yog ib tug invisible hluav taws xob hluav taws xob. Hauv electromagnetic spectrum, lub wavelength ntau ntawm infrared yog nyob nruab nrab ntawm {{{0}}}.75 thiab 1000 micrometers, thiab qhov ntau zaus yog nyob nruab nrab ntawm 3 × 10 thiab 4 × 10 hertz. Hauv cov ntawv thov kev lag luam, cov spectrum infrared feem ntau muab faib ua ob peb pawg: 0.75-3.0 microns nyob rau thaj tsam ze-infrared; 3.0-6.0 microns yog nyob rau hauv nruab nrab infrared cheeb tsam; 6.0-15.0 microns nyob hauv cheeb tsam deb infrared; 15. Cov khoom sib txawv muaj peev xwm sib txawv los nqus cov hluav taws xob infrared, thiab txawm tias tib yam khoom muaj peev xwm sib txawv los nqus cov hluav taws xob infrared ntawm cov wavelengths sib txawv. Yog li ntawd, thaum siv cov cua sov infrared, nws yog ib qho tsim nyog los xaiv qhov tsim nyog infrared hluav taws xob qhov chaw raws li hom khoom uas tau rhuab, kom nws cov hluav taws xob hluav taws xob tuaj yeem mloog zoo nyob rau hauv qhov nqus wavelength ntau ntawm cov khoom rhuab, thiaj li ua tiav cov cua sov zoo. .
Hluav taws xob infrared cua sov yog ib txoj kev tshwj xeeb ntawm cov cua sov, uas siv cov ntaub ntawv xws li tungsten, hlau npib tsib xee, los yog npib tsib xee chromium alloy li radiators los tsim ib tug hluav taws xob qhov chaw. Tom qab siv lub tshuab hluav taws xob, thermal tawg yog tsim los ntawm nws cov cua sov ua haujlwm. Feem ntau siv hluav taws xob hluav taws xob hluav taws xob hluav taws xob hluav taws xob muaj xws li lub teeb hom (reflective), raj hom (quartz raj hom), thiab phaj hom (planar). Lub teeb hom yog lub teeb infrared uas siv tungsten xaim raws li cov emitter thiab muab ntim rau hauv lub khob iav uas muaj roj inert, zoo ib yam li lub teeb pom kev zoo. Tom qab tau hluav taws xob, lub tshuab hluav taws xob tsim hluav taws xob tsim hluav taws xob (ntawm qhov kub qis dua li lub teeb pom kev zoo), thiab tom qab ntawd tawm ntau cov hluav taws xob infrared nrog lub wavelength ntawm li 1.2 micrometers. Yog hais tias ib txheej txheej txheej yog coated rau ntawm phab ntsa sab hauv ntawm lub iav plhaub, cov hluav taws xob infrared tuaj yeem ua kom pom tseeb hauv ib qho kev taw qhia, yog li lub teeb hom hluav taws xob hluav taws xob hluav taws xob tseem hu ua lub teeb hluav taws xob infrared radiator. Lub raj ntawm lub raj hom infrared hluav taws xob qhov chaw yog ua los ntawm quartz iav, nrog ib tug tungsten hlau nyob rau hauv qhov chaw, yog li nws kuj hu ua quartz raj hom infrared radiator. Lub wavelength ntawm infrared emissions los ntawm lub teeb thiab tube hom yog nyob ntawm 0.7 mus rau 3 microns, thiab cov kev khiav hauj lwm kub kuj yog tsawg. Nws feem ntau yog siv rau cua sov, ci, ziab, thiab infrared kho nyob rau hauv lub teeb thiab textile industries, raws li zoo raws li nyob rau hauv daim ntawv thov kev kho mob. Cov nplaim hluav taws xob ntawm cov phaj hom infrared hluav taws xob qhov chaw yog ib qho chaw tiaj tus uas muaj cov phaj tsis sib haum. Lub pem hauv ntej ntawm lub phaj kuj yog coated nrog cov ntaub ntawv uas muaj siab reflection coefficients, thiab yog hais tias tsis nyob rau hauv kev sib raug zoo, cov ntaub ntawv uas tsis tshua muaj reflection coefficients yog coated. Yog li ntawd, feem ntau ntawm thermal zog yog radiated los ntawm pem hauv ntej. Kev khiav hauj lwm kub ntawm cov phaj hom tuaj yeem ncav cuag tshaj 1000 degree, thiab nws tuaj yeem siv rau kev sib tsoo ntawm cov khoom siv hlau, cov kav dej loj, thiab cov thawv.
Vim nws muaj peev xwm nkag mus tau zoo, cov hluav taws xob infrared tau yooj yim absorbed los ntawm cov khoom, thiab ib zaug absorbed los ntawm cov khoom, nws tam sim ntawd transforms rau hauv thermal zog; Lub zog poob ua ntej thiab tom qab cua sov infrared yog me me, qhov kub thiab txias yog yooj yim los tswj, thiab cov cua kub zoo. Yog li ntawd, daim ntawv thov ntawm infrared cua sov unfolds sai sai.
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