Yuav ua li cas tus pas ntsuas kub infrared txiav txim siab nqes hav thiab emissivity
Yuav ua li cas txiav txim siab txoj kab nqes
Cov kev siv tau zoo ntawm kev txiav txim siab txoj kab nqes suav nrog ntsuas qhov khoom siv qhov ntsuas kub uas siv cov kev sojntsuam (xws li RTD), thermocouple, lossis lwm yam tsim nyog. 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 qhov tseeb, thiab qhov tseeb nqes hav tau txais.
Yuav ua li cas txiav txim siab emissivity
Txiav txim siab qhov kub ntawm qhov khoom siv qhov kev sojntsuam (xws li RTD), thermocouple, lossis lwm txoj kev tsim nyog. Kho tus nqi emissivity kom txog thaum qhov ntsuas kub ntawm lub taub hau sensor yog tib yam li qhov ntsuas kub tiag tiag, uas yog, qhov tseeb emissivity tau txais.
Yog hais tias ib feem ntawm qhov saum npoo ntawm cov khoom tuaj yeem coated, qhov saum npoo ntawm cov khoom tuaj yeem blackened nrog matte carbon dub. Lub sijhawm no, qhov emissivity yog kwv yees li {{0}}.98. Teem lub emissivity rau 0.98 thiab ntsuas qhov kub ntawm qhov blackened ib feem. Thaum kawg, ntsuas qhov chaw nyob ib sab ntawm qhov blackened ib feem ntawm cov khoom thiab kho cov emissivity kom txog rau thaum qhov ntsuas kub yog sib npaug rau qhov ntsuas kub. Qhov tseeb emissivity yog tam sim no tau.
Optimize nto qhov ntsuas kub raws li cov lus qhia hauv qab no:
1. Siv lub ntsuas ntsuas los ntsuas qhov emissivity ntawm ib yam khoom.
2. Sim kom tsis txhob xav txog; tiv thaiv cov khoom los ntawm qhov kub thiab txias qhov chaw nyob ib puag ncig.
3. Thaum cov khoom kub siab, yog tias muaj ob peb qhov sib tshooj wavelengths muaj, xaiv qhov luv wavelength.
4. Rau cov ntaub ntawv translucent, xws li iav; Thaum ntsuas kub, xyuas kom meej tias qhov kub thiab txias tom qab yog qhov sib xws thiab qis dua qhov kub ntawm cov khoom.
5. Thaum cov emissivity tsawg dua 0.9, lub taub hau sensor thiab qhov chaw ntawm lub hom phiaj yuav tsum khaws cia li ntsug li sai tau. Tsis txhob tso cai rau lub kaum sab xis ntawm lub axis ntawm lub taub hau sensor thiab cov kab ib txwm ntawm cov khoom nto siab tshaj 45 degree
