Thermometer txiav txim qhov emissivity ntawm cov khoom raug ntsuas
Emissivity qhia txog ib yam khoom muaj peev xwm ua kom lub teeb infrared. Yog li ntawd, qhov cuam tshuam ntawm qhov ntsuas kub uas tshwm sim los ntawm cov khoom sib txawv muaj qhov sib txawv emissivities yuav tsum tau them nyiaj raws li qhov teeb tsa emissivity. Cov yam tseem ceeb uas cuam tshuam rau emissivity yog: hom khoom, nto roughness, lub cev thiab tshuaj qauv, thiab cov khoom thickness. Daim duab 1 teev cov emissivities ntawm cov khoom siv rau kev siv yooj yim. Cov emissivity ntawm qee yam khoom siv engineering kuj tuaj yeem pom hauv cov ntaub ntawv muaj feem. Rau cov khoom uas tsis paub emissivity, koj tuaj yeem ua ntej siv tus pas ntsuas kub sib cuag los ntsuas qhov saum npoo ntawm cov khoom, thiab tom qab ntawd siv tus ntsuas kub infrared los ntsuas qhov saum npoo ntawm cov khoom. Nyob rau tib lub sijhawm, kho cov emissivity kom qhov ntsuas kub zoo ib yam nrog qhov ntsuas kub ntawm qhov ntsuas kub ntawm qhov sib cuag. Lub emissivity ntawm lub sijhawm no yog emissivity ntawm cov khoom ntsuas. Silver hmoov feem ntau yog siv los tiv thaiv corrosion rau cov khoom siv plhaub. Nws zoo li pleev xim tab sis tsis pleev xim. Nws yog tsim los ntawm zinc hmoov thiab ib rab diav, uas txawv ntawm cov xim zoo tib yam. Nws emissivity tsis tshua muaj qhia hauv cov ntaub ntawv. Koj tuaj yeem siv cov qauv hauv qab no los ntsuas nws cov emissivity: kub hauv chav kuaj, siv cov khoom siv thermal los ntsuas qhov kub ntawm cov hmoov hmoov, thiab tom qab ntawd kho cov emissivity. Thaum ntsuas kub ntawm tus pas ntsuas kub thiab cov thermal kuj Thaum ntsuas kub ntawm cov cuab yeej zoo sib xws, qhov emissivity yog qhov emissivity yuav tsum ntsuas. Qhov tseeb, ntau chav nyob tseem siv cov ntsuas ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas tsis tuaj yeem hloov kho. Thaum ntsuas kub, qhov sib thooj emissivity tsis tuaj yeem hloov kho raws li cov khoom ntawm cov khoom, thiab qhov yuam kev loj dhau.
Ntxuav lub lens thiab calibrating tus pas ntsuas kub
Tom qab tus pas ntsuas kub tau siv rau ib lub sijhawm, cov plua plav yuav ntim rau ntawm lub lens, uas yooj yim saib. Koj tuaj yeem siv lub pob ntxuav kom tshuab cov plua plav saum npoo av los yog siv cov paj rwb huv si dipped hauv dej me ntsis los ntxuav lub lens nto. Txwv tsis pub, qhov kub thiab txias tso tawm los ntawm tus pas ntsuas kub yuav qis dua qhov ntsuas kub ntawm lub hom phiaj. Cov ntsuas kub infrared yuav tsum tau ntsuas tsis tu ncua kom lawv tuaj yeem pom qhov ntsuas kub ntawm lub hom phiaj raug ntsuas. Yog tias qhov ntsuas kub ntawm tus pas ntsuas kub uas siv yog tsis kam rau siab thaum siv, nws yuav tsum raug xa rov qab mus rau lub chaw tsim khoom lossis chaw saib xyuas kom rov ua dua.
