Cov nyhuv ntawm ib yam khoom emissivity ntawm qhov ntsuas ntawm hluav taws xob kub
Yuav luag txhua yam khoom tiag tiag uas muaj nyob hauv qhov tsis yog lub cev dub. Tus nqi hluav taws xob ntawm tag nrho cov khoom tiag tiag tsis yog nyob ntawm lub wavelength ntawm cov hluav taws xob 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, deg lub xeev, thiab ib puag ncig tej yam kev mob uas ua rau cov khoom siv. khoom. Yog li ntawd, txhawm rau txhawm rau txoj cai lij choj ntawm lub cev hluav taws xob siv rau txhua yam khoom siv, nws yog ib qho tsim nyog yuav tsum ua kom paub qhov sib npaug ntawm cov khoom sib txuas nrog rau cov khoom siv thiab lub xeev saum npoo, uas yog emissivity. Qhov coefficient no sawv cev rau qhov sib thooj ntawm cov hluav taws xob hluav taws xob ntawm cov khoom siv tiag tiag thiab cov hluav taws xob lub cev dub, nrog tus nqi ntawm xoom thiab tus nqi tsawg dua 1. Raws li txoj cai ntawm hluav taws xob, tsuav yog qhov emissivity ntawm ib yam khoom paub, lub infrared. hluav taws xob yam ntxwv ntawm tej yam khoom yog paub.
Lub ntsiab tseem ceeb cuam tshuam rau emissivity muaj xws li cov khoom siv, nto roughness, physicochemical qauv, thiab cov khoom thickness.
Thaum ntsuas qhov ntsuas kub ntawm lub hom phiaj siv lub ntsuas hluav taws xob hluav taws xob infrared, thawj kauj ruam yog ntsuas qhov hluav taws xob infrared ntawm lub hom phiaj hauv nws qhov wavelength range, thiab tom qab ntawd tus pas ntsuas kub ntsuas qhov ntsuas kub ntawm lub hom phiaj ntsuas. Tus pas ntsuas kub monochromatic yog proportional rau tus nqi hluav taws xob hauv cov qhab; Qhov ntsuas kub ntawm ob xim yog proportional rau qhov sib piv ntawm cov hluav taws xob hauv ob pawg.
Infrared system: Tus pas ntsuas kub infrared muaj cov khoom siv kho qhov muag, photodetector, lub teeb liab amplifier, teeb liab ua, tso zis tawm, thiab lwm yam khoom. Lub tshuab kho qhov muag sib sau ua ke lub zog hluav taws xob infrared ntawm lub hom phiaj hauv nws qhov chaw saib, thiab qhov loj ntawm qhov kev pom yog txiav txim siab los ntawm cov khoom siv kho qhov muag thiab lawv txoj haujlwm ntawm tus pas ntsuas kub. Lub zog infrared yog tsom rau lub photodetector thiab hloov mus rau hauv cov khoom siv hluav taws xob sib xws. Lub teeb liab tau hloov mus rau qhov ntsuas kub ntawm qhov ntsuas lub hom phiaj tom qab tau nthuav dav thiab ua tiav los ntawm lub teeb liab ua haujlwm Circuit Court, thiab kho raws li algorithm ntawm qhov ntsuas qhov kev kho mob sab hauv thiab lub hom phiaj emissivity.
