Nrhiav kom paub siv cov ntsuas kub ceev infrared.
Lub tshuab ntsuas kub ceev infrared yog tsim los ntawm optical system, photodetector, teeb liab amplifier, teeb liab ua, tso zis tso zis thiab lwm qhov chaw. Lub ntsuas kub ceev infrared ntsuas ntsuas hluav taws xob hluav taws xob hluav taws xob los ntawm infrared detectors (thermal detectors thiab photoelectric detectors) thiab hloov nws mus rau hauv hluav taws xob teeb liab, thiab tom qab ntawd hloov nws mus rau hauv qhov kub thiab txias raws li txoj cai ntawm hluav taws xob hluav taws xob.
Lub tshuab kho qhov muag sau cov phiaj xwm hluav taws xob hluav taws xob hluav taws xob hauv nws qhov chaw saib, thiab qhov loj ntawm qhov kev pom yog txiav txim siab los ntawm qhov chaw kho qhov muag thiab txoj hauj lwm ntawm tus pas ntsuas kub. Lub zog infrared yog tsom rau lub photodetector thiab hloov mus rau hauv cov teeb liab hluav taws xob sib xws. Lub teeb liab hloov mus rau qhov kub ntawm qhov ntsuas lub hom phiaj tom qab lub amplifier thiab teeb liab ua Circuit Court yog xam raws li lub algorithm nyob rau hauv lub ntsuas thiab lub hom phiaj emissivity raug kho. Tsis tas li ntawd, cov xwm txheej ib puag ncig ntawm lub hom phiaj thiab tus pas ntsuas kub kuj tseem yuav tsum tau txiav txim siab, xws li kev cuam tshuam ntawm cov yam ntxwv xws li qhov kub thiab txias, huab cua, kev ua qias tuaj thiab cuam tshuam ntawm cov ntsuas kev ua tau zoo thiab cov txheej txheem kho.
Lub ntsuas kub ceev infrared yog siv los ntsuas qhov kub ntawm qhov khoom. Lub emission, reflected thiab kis tau lub zog ntawm lub optical keeb ntawm tus pas ntsuas kub yog concentrated nyob rau hauv lub detector. Cov khoom siv hluav taws xob ntawm tus pas ntsuas kub hloov cov ntaub ntawv no rau hauv kev nyeem ntawv ntsuas kub thiab muab tso rau ntawm lub vaj huam sib luag ntawm tus pas ntsuas kub. Qhov kub thiab txias tso tawm los ntawm lub ntsuas kub infrared feem ntau hu ua qhov ci ci ntawm lub hom phiaj, uas txawv ntawm qhov kub ntawm qhov khoom tiag tiag, vim tias qhov emissivity ntawm cov khoom muaj qee yam cuam tshuam rau qhov ntsuas kub ntawm hluav taws xob, thiab yuav luag tag nrho cov khoom tiag tiag. nyob rau hauv qhov tsis yog lub cev dub. Tus nqi hluav taws xob ntawm tag nrho cov khoom tiag tiag nyob ntawm tsis yog tsuas yog nyob rau ntawm qhov hluav taws xob wavelength thiab qhov kub ntawm cov khoom, tab sis kuj nyob ntawm hom khoom tsim los ntawm cov khoom, cov txheej txheem kev npaj, txheej txheem thermal, lub xeev saum npoo thiab ib puag ncig. Yog li ntawd, txhawm rau ua kom txoj cai lij choj ntawm lub cev dub hluav taws xob siv tau rau txhua yam khoom siv, ib qho kev faib ua feem coefficient ntsig txog cov khoom siv thiab lub xeev saum npoo yuav tsum tau qhia, uas yog, emissivity. Qhov coefficient no qhia tias qhov hluav taws xob hluav taws xob nyob ze ntawm qhov khoom tiag tiag yog li cas rau cov hluav taws xob lub cev dub, thiab nws cov nqi yog nyob nruab nrab ntawm 0 thiab 1. Raws li txoj cai ntawm hluav taws xob, tsuav yog qhov emissivity ntawm cov khoom paub, Cov yam ntxwv ntawm cov hluav taws xob infrared ntawm txhua yam khoom tuaj yeem paub
