Deg emission ntawm infrared ntsuas kub
Txhua qhov ntsuas infrared tau txais cov ntaub ntawv ntsuas kub ntawm cov cuab yeej los ntawm kev ntsuas lub zog hluav taws xob hluav taws xob nyob rau saum npoo ntawm cov khoom siv hluav taws xob. Thiab thaum lub ntsuas ntsuas infrared tau txais tib lub zog hluav taws xob infrared los ntawm lub hom phiaj, cov txiaj ntsig sib txawv yuav tau txais vim qhov sib txawv ntawm qhov sib txawv ntawm lub hom phiaj. Qhov ntawd yog hais tias, rau tib lub zog hluav taws xob, qhov qis dua qhov emissivity, qhov kub siab dua yuav tshwm sim. Vim tias qhov emissivity nto ntawm ib yam khoom yog txiav txim siab los ntawm cov khoom siv thiab lub xeev ntawm qhov chaw (xws li nto oxidation, txheej khoom, roughness thiab muaj kuab paug, thiab lwm yam). Yog li ntawd, txhawm rau ntsuas qhov ntsuas kub ntawm cov khoom siv hluav taws xob kom raug siv cov cuab yeej siv hluav taws xob infrared thermal imaging, nws yog ib qho tsim nyog yuav tsum paub txog tus nqi emissivity ntawm lub hom phiaj soj ntsuam, thiab muab cov nqi no rau hauv lub khoos phis tawj yog qhov tseem ceeb rau kev ntsuas kub, lossis kho qhov ntsuas kub. ε kho tus nqi ntawm infrared ntsuas ntsuas, kom tag nrho cov ntsuas kub tso zis tus nqi raug kho rau emissivity. Lwm qhov kev tawm tsam los tshem tawm cov kev cuam tshuam ntawm emissivity ntawm cov txiaj ntsig kev sim yog: thaum siv cov duab hluav taws xob infrared thermal rau kev ntsuas, nws yog ib qho tsim nyog yuav tsum tau kho cov emissivity, nrhiav cov emissivity tus nqi ntawm qhov chaw ntawm lub cuab yeej nyob rau hauv kev sim thiab kho cov emissivity. , yog li kom tau txais kev ntseeg siab Qhov ntsuas qhov ntsuas kub tuaj yeem txhim kho kev ntseeg tau ntawm kev tshawb pom; rau cov khoom siv nrog cov kev ua txhaum tsis tu ncua los ntawm kev kuaj pom infrared, txhawm rau ua kom pom cov txiaj ntsig muaj qhov sib piv zoo, cov txheej txheem ntawm kev siv cov xim tsim nyog tuaj yeem siv los ua kom muaj zog thiab ruaj khov tus nqi emissivity, kom tau txais qhov tseeb qhov kub thiab txias ntawm qhov chaw. lub cuab yeej nyob rau hauv kev sim.
Txoj kev nqes hav yog qhov piv ntawm cov emissivity nyob rau hauv lub monochrome broadband kub ntsuas hom rau emissivity nyob rau hauv lub monochrome nqaim band kub ntsuas hom, uas yuav siv tau thaum xam qhov ntsuas kub nyob rau hauv ob-xim kub ntsuas hom. Txij li thaum lub emissivity ntawm lub narrowband hom tsis tuaj yeem hloov kho, nws tau los ntawm kev faib cov monochromatic broadband emissivity los ntawm txoj kab nqes nqi.
Yog tias koj yuav tsum tau ua tib zoo saib xyuas qhov ntsuas qhov nqaim, ua kom qhov nqaim emissivity ntau dua 1.
Emissivity yog ib qho kev ntsuas ntawm ib yam khoom lub peev xwm los radiate lub teeb infrared. Tus nqi no tuaj yeem yog los ntawm {{0}} ( daim iav) mus rau 1.0 (lub cev dub), yog tias qhov teeb tsa emissivity ntau dua li qhov tseeb emissivity, lub taub hau sensor yuav nyeem qis. Piv txwv li, yog tias qhov tseeb emissivity ntawm cov khoom yog 0.9 thiab cov nqi teev yog 0.95, qhov ntsuas kub yuav qis.
