Kawm paub tias cov ntsuas kub ceev infrared ua haujlwm li cas
High-speed infrared tus pas ntsuas kub muaj cov khoom siv kho qhov muag, 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 cov teeb liab hluav taws xob, thiab tom qab ntawd hloov nws mus rau hauv qhov kub thiab txias raws li cov cai ntawm hluav taws xob hluav taws xob.
Lub optical system sau lub hom phiaj infrared hluav taws xob hluav taws xob nyob rau hauv nws qhov kev pom. Qhov loj ntawm qhov kev pom yog txiav txim los ntawm cov khoom siv 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 ntsuas kub ntawm qhov ntsuas lub hom phiaj tom qab raug xam los ntawm lub amplifier thiab teeb liab ua Circuit Court raws li lub algorithm hauv lub ntsuas thiab kho los ntawm lub hom phiaj emissivity. Tsis tas li ntawd, ib puag ncig tej yam kev mob uas lub hom phiaj thiab tus pas ntsuas kub nyob hauv yuav tsum tau txiav txim siab, xws li kev cuam tshuam ntawm cov xwm txheej xws li qhov kub thiab txias, huab cua, muaj kuab paug, thiab cuam tshuam rau cov ntsuas kev ua tau zoo thiab cov kev kho.
High-speed infrared thermometers yog siv los ntsuas qhov kub thiab txias ntawm cov khoom. Lub zog emissions, reflected thiab kis tau los ntawm optical Cheebtsam 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 ntsuas kub uas pom los ntawm tus ntsuas kub infrared feem ntau hu ua qhov ci ci ntawm lub hom phiaj, uas txawv ntawm qhov kub ntawm qhov khoom tiag tiag. Qhov no yog vim qhov emissivity ntawm cov khoom muaj qee yam cuam tshuam rau qhov ntsuas kub ntawm hluav taws xob. Yuav luag txhua yam khoom tiag tiag tsis yog lub cev dub. Tus nqi hluav taws xob ntawm tag nrho cov khoom tiag tiag tsis yog nyob ntawm qhov hluav taws xob wavelength thiab qhov kub thiab txias ntawm cov khoom, tab sis kuj yog nyob ntawm cov khoom xws li hom khoom, kev npaj, txheej txheem thermal, lub xeev saum npoo thiab ib puag ncig ntawm cov khoom. Yog li ntawd, txhawm rau ua kom txoj cai dub lub cev hluav taws xob siv tau rau txhua yam khoom tiag, ib qho kev faib ua feem cuam tshuam nrog rau cov khoom siv thiab lub xeev saum npoo yuav tsum tau qhia, uas yog, emissivity. Qhov coefficient no txhais tau hais tias kaw qhov hluav taws xob hluav taws xob ntawm qhov khoom tiag tiag rau lub cev hluav taws xob, thiab nws cov nqi nyob nruab nrab ntawm 0 thiab 1. Raws li txoj cai hluav taws xob, tsuav koj paub qhov emissivity ntawm cov khoom, koj tuaj yeem paub. infrared radiation yam ntxwv ntawm tej yam khoom.
