Qhov ntsuas kub li cas rau lub ntsuas kub infrared?
Theoretical cov ntsiab lus ntawm infrared ntsuas kub
Nyob rau hauv qhov xwm txheej, thaum qhov kub ntawm ib yam khoom yog siab tshaj li xoom, vim muaj nyob rau hauv thermal zog, nws yuav tsis tu ncua radiate electromagnetic nthwv dej rau ib puag ncig, nrog rau infrared rays nrog ib tug wavelength ntau ntawm 0.75μm ~ 100 μm. Nws qhov tseem ceeb tshaj plaws yog tias ntawm qhov ntsuas kub thiab qhov ntev, lub zog hluav taws xob tawm los ntawm ib qho khoom muaj qhov siab tshaj plaws. Cov khoom no yog hu ua lub cev dub, thiab nws qhov kev xav coefficient yog teem rau 1. Lub reflection coefficient ntawm lwm cov ntaub ntawv yog tsawg dua 1, uas yog hu ua lub cev dub. Nws yog lub cev grey, vim hais tias kev sib raug zoo ntawm spectral hluav taws xob fais fab P (λT) ntawm lub cev dub thiab qhov kub thiab txias T txaus siab rau Planck txoj cai. Nws qhia tau hais tias ntawm qhov kub thiab txias T, lub zog hluav taws xob ntawm lub cev dub ntawm ib cheeb tsam ntawm lub wavelength λ yog P (λT). Raws li qhov kev sib raug zoo no, qhov kev sib raug zoo nkhaus tuaj yeem tau txais, uas yog:
(1) Raws li qhov kub thiab txias, lub zog hluav taws xob ntawm cov khoom yuav muaj zog dua. Qhov no yog qhov pib ntawm infrared radiation txoj kev xav thiab lub hauv paus rau kev tsim ntawm ib leeg-band infrared thermometers.
(2) Raws li qhov kub thiab txias nce, cov hluav taws xob siab tshaj plaws txav mus rau qhov kev taw qhia luv luv (saib sab laug), thiab txaus siab rau Wien txoj kev hloov pauv. Lub wavelength ntawm lub ncov yog inversely proportional rau qhov kub thiab txias T, thiab cov dotted kab yog cov kab txuas cov peaks. Cov mis no qhia peb tias vim li cas cov ntsuas kub kub feem ntau ua haujlwm ntawm cov nthwv dej luv luv, thiab cov ntsuas kub qis feem ntau ua haujlwm ntawm cov nthwv dej ntev.
(3) Tus nqi ntawm kev hloov pauv ntawm lub zog hluav taws xob nrog qhov kub thiab txias yog ntau dua ntawm lub wavelengths luv dua ntawm cov nthwv dej ntev. Ntawd yog, cov ntsuas ntsuas kub ua haujlwm ntawm lub wavelengths luv luv muaj cov teeb liab-rau-suab nrov piv (siab rhiab heev) thiab muaj zog tiv thaiv kev cuam tshuam. Tus pas ntsuas kub yuav tsum sim ua haujlwm ntawm tus nqi siab tshaj. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog nyob rau hauv wavelengths, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm qhov kub thiab txias me me lub hom phiaj.
Dab tsi yog qhov kub thiab txias ntawm lub ntsuas kub infrared?
Qhov kub ntawm lub ntsuas kub infrared yog qhov qub yog tias nws qis dua 36 degrees.
1. Thaum siv lub ntsuas kub infrared los ntsuas qhov kub thiab txias ntawm cov khoom luminous, xws li txhuas thiab stainless hlau, qhov kev xav ntawm qhov chaw yuav cuam tshuam rau kev nyeem ntawv ntawm tus ntsuas kub infrared.
2. Ua ntej nyeem qhov ntsuas kub, koj tuaj yeem tso ib daim kab xev rau ntawm qhov chaw hlau. Tom qab qhov kub thiab txias yog sib npaug, ntsuas qhov kub ntawm cov kab xev.
3. Lub ntsuas kub infrared tuaj yeem siv los txav rov qab los ntawm chav ua noj mus rau qhov chaw txias thiab tseem muab qhov ntsuas kub kom raug. Nws yuav tsum tau ntsuas tom qab ib lub sijhawm nyob rau hauv qhov chaw tshiab kom ua tiav qhov kub thiab txias.
4. Nws yog qhov zoo tshaj rau tso tus pas ntsuas kub rau hauv qhov chaw uas nquag siv.
