Tus pas ntsuas kub infrared tso saib LO txhais li cas?
Lub ntsuas kub infrared muaj qhov ntsuas kub ntawm -50 degree mus rau 550 degree, thiab cov tsos ntawm LO txhais tau hais tias qhov ntsuas kub ntsuas tau qis dua qhov qis dua, uas yog hais, qhov kub ntawm qhov khoom koj ntsuas yog qis dua -50 degree ! Nws kuj tuaj yeem yog vim roj teeb tsawg.
Kev Ntsuam Xyuas yuam kev ntawm Infrared Thermometer
Txij li thaum lub ntsuas kub infrared tsis sib cuag, nws cov txiaj ntsig ntsuas tau cuam tshuam los ntawm ntau yam. Los ntawm qhov kev xav ntawm qhov ntsuas nws tus kheej, muaj cov hauv qab no: siv lub cev tsis yog isothermal dub los ua qhov kev ntsuas qhov sib txawv, qhov sib txawv ntawm emissivity ntawm qhov ntsuas, qhov nruab nrab ntawm huab cua thiab lub lens qauv ntawm lub ntsuas qhov ntsuas ntawm lwm yam, Cov txiaj ntsig ntsuas tau cuam tshuam los ntawm emissivity ntawm cov khoom ntsuas, ntsuas qhov deb coefficient, thiab qhov kub ntawm ib puag ncig sab nraud.
Kev daws rau qhov yuam kev ntawm infrared tus pas ntsuas kub
Hauv daim ntawv thov, txoj kev sib piv ntawm qhov chaw thiab calibration feem ntau yog siv los tshem tawm cov teebmeem no ntau li ntau tau. Raws li qhov tseeb calibration xav tau, ob peb calibration kub yog xaiv raws li, thiab calibration sequence yog nqa tawm los ntawm qis kub mus rau high kub. Ua ntej teem lub emissivity ε=1 ntawm cov khoom rau calibration, ces kho tus nqi ntawm ε kom lub tso saib kub raws li qhov kub thiab txias calibration, nyeem qhov taw qhia tus nqi ntawm ε=1 thiab qhov taw qhia tus nqi ntawm ε<<1 after adjustment. Each calibration point is read repeatedly several times before data processing. For the thermometers whose indication error and repeatability meet the requirements, it is enough to mark their s value.
