Infrared tus pas ntsuas kub saum npoo emission
Txhua qhov ntsuas infrared tau txais cov ntaub ntawv ntsuas kub 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. Hauv lwm lo lus, rau tib lub zog hluav taws xob, qhov qis dua qhov emissivity, qhov siab dua qhov kub yuav tshwm sim. Vim tias qhov emissivity saum npoo ntawm ib yam khoom yog txiav txim siab los ntawm cov khoom siv thiab lub xeev ntawm qhov chaw (xws li oxidation nto, txheej khoom, roughness thiab paug lub xeev, 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 raug tshuaj xyuas, thiab muab cov nqi no rau hauv lub computer ua qhov tseem ceeb rau kev ntsuas kub lossis kho qhov ε. kho tus nqi ntawm infrared ntsuas ntsuas kom tag nrho cov ntsuas kub tso zis yog emissivity kho. Lwm qhov kev tawm tsam los tshem tawm qhov cuam tshuam ntawm emissivity ntawm cov txiaj ntsig kev xeem yog: thaum siv lub koob yees duab infrared thermal imaging rau kev ntsuas, qhov emission yuav tsum raug kho, thiab emissivity tus nqi ntawm qhov chaw ntawm cov khoom nyob rau hauv kev ntsuam xyuas yuav tsum tau pom thiab emissivity kho rau. tau txais kev ntsuas qhov ntsuas kub kom ntseeg tau los txhim kho kev ntseeg tau ntawm kev kuaj pom; rau cov khoom siv uas tsis tshua muaj tshwm sim hauv kev tshawb 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 nce thiab ruaj khov tus nqi emissivity kom tau txais qhov tseeb kub ntawm qhov chaw ntawm lub cuab yeej hauv qab. xeem.
Txoj kab nqes yog qhov piv ntawm cov emissivity nyob rau hauv ib qho xim wideband ntsuas kub hom rau cov emissivity nyob rau hauv ib qho xim nqaim ntsuas kub hom. Nws yog siv thaum xam qhov ntsuas kub nyob rau hauv lub dual-xim kub ntsuas hom. Txij li thaum lub emissivity ntawm lub narrowband hom tsis tuaj yeem hloov kho, nws yog xam los ntawm kev faib cov monochromatic broadband emissivity los ntawm tus nqi nqes hav.
Yog tias koj yuav tsum tau xyuam xim rau qhov ntsuas qhov nqaim, kho txoj kab nqes thiab broadband emissivity kom qhov nqaim emissivity ntau dua 1.00 (lossis tsawg dua 0.10).
Emissivity yog ib qho kev ntsuas ntawm ib yam khoom lub peev xwm los radiate lub teeb infrared. Tus nqi no tuaj yeem nyob ntawm {{0}} (specular) mus rau 1.0 (blackbody). Yog tias qhov emissivity tau teem rau tus nqi ntau dua li qhov tseeb emissivity, kev nyeem ntawv ntawm lub taub hau sensor yuav qis. Piv txwv li, yog tias qhov tseeb emissivity ntawm cov khoom yog 0.9 thiab qhov teeb tsa tus nqi yog 0.95, qhov ntsuas kub yuav qis dua.
