Yuav Ua Li Cas Teem Slope thiab Emissivity rau Infrared Thermometers
Yuav ua li cas txiav txim siab txoj kab nqes
Cov kev siv tau zoo rau kev txiav txim siab txoj kab nqes suav nrog kev siv cov tshuaj ntsuam xyuas (xws li RTDs), thermocouples, lossis lwm txoj hauv kev tsim nyog los ntsuas qhov ntsuas kub. Tom qab tau txais qhov ntsuas kub tiag tiag, kho qhov teeb tsa emissivity kom txog rau thaum qhov ntsuas kub ntawm lub taub hau sensor yog sib npaug rau qhov ntsuas ntsuas qhov tseeb, uas yog qhov tseeb nqes hav.
Yuav ua li cas txiav txim siab emissivity
1. Siv cov kev sojntsuam (xws li RTD), thermocouples, lossis lwm txoj hauv kev los txiav txim siab qhov kub ntawm qhov khoom. Kho tus nqi emissivity kom txog rau thaum qhov ntsuas kub ntawm qhov ntsuas lub taub hau sib npaug ntawm qhov ntsuas kub, uas yog qhov tseeb emissivity.
2. Yog hais tias ib feem ntawm qhov saum npoo ntawm cov khoom tuaj yeem coated, qhov saum npoo ntawm cov khoom tuaj yeem coated nrog matte carbon dub. Lub sijhawm no, emissivity yog hais txog 0.98. Teem lub emissivity rau 0.98 thiab ntsuas qhov kub ntawm qhov blackened ib feem. * Tom qab ntawd ntsuas qhov chaw nyob ib sab ntawm qhov blackened ib feem ntawm cov khoom thiab kho cov emissivity kom txog thaum qhov ntsuas kub ntsuas qhov ntsuas kub tiag tiag. Hauv qhov no, qhov tseeb emissivity tau txais.
Optimize qhov ntsuas kub ntawm qhov chaw raws li cov hauv qab no:
1. Siv cov cuab yeej ntsuas los ntsuas qhov emissivity ntawm cov khoom.
2. Sim kom tsis txhob xav txog ntau li ntau tau; Tiv thaiv cov khoom los ntawm qhov chaw kub-kub kub hauv qhov chaw ib puag ncig.
3. Thaum qhov kub ntawm ib yam khoom siab, yog tias muaj ntau qhov sib tshooj wavelengths tuaj yeem siv tau, xaiv qhov luv wavelength.
4. Rau cov khoom siv pob tshab xws li iav; Thaum ntsuas kub, nws yuav tsum tau ua kom ntseeg tau tias qhov kub thiab txias tom qab yog qhov sib xws thiab qis dua qhov kub ntawm cov khoom.
5. Thaum lub emissivity tsawg dua 0.9, lub taub hau sensing yuav tsum tau khaws cia li perpendicular li sai tau rau saum npoo ntawm lub hom phiaj. Tsis txhob ua lub kaum sab xis ntawm lub axis ntawm lub taub hau thiab qhov qub ntawm cov khoom nto siab tshaj 45 degree
