LED spectrometer yog siv los ntes CCT (qhov sib txheeb xim kub), CRI (xim rendering Performance index), LUX (illuminance), thiab λP (lub ntsiab ncov wavelength) ntawm lub teeb ci LED, thiab tuaj yeem tso saib cov txheeb ze zog spectrum faib daim duab, CIE 1931 x,y chromaticity coordinate graph, CIE1976 u',v' coordinate map.
Lub integrating sphere yog ib tug kab noj hniav sphere coated nrog ib tug dawb diffuse reflection khoom nyob rau hauv lub puab phab ntsa, kuj hu ua ib tug photometric sphere, ib tug luminous kheej kheej, thiab lwm yam. Ib tug los yog ob peb lub qhov rais qhov rais qhib rau lub kheej kheej phab ntsa, uas yog siv raws li lub teeb inlet. qhov thiab qhov tau txais qhov tso rau lub teeb tau txais cov khoom siv. Cov phab ntsa sab hauv ntawm qhov sib xyaw ua ke yuav tsum yog qhov zoo nkauj kheej kheej, thiab nws feem ntau yuav tsum tau hais tias qhov sib txawv ntawm qhov zoo tshaj plaws kheej kheej yuav tsum tsis txhob siab tshaj 0.2% ntawm lub puab kab. Sab hauv ntawm lub pob yog coated nrog ib qho zoo tagnrho diffuse reflection khoom, uas yog, cov khoom uas muaj diffuse reflection coefficient ze rau 1. Cov khoom siv feem ntau yog magnesium oxide lossis barium sulfate. Tom qab sib tov nws nrog ib tug colloidal nplaum, tshuaj tsuag rau ntawm phab ntsa sab hauv. Lub spectral reflectance ntawm magnesium oxide txheej hauv qhov pom spectrum yog siab dua 99%. Nyob rau hauv no txoj kev, lub teeb nkag mus rau hauv lub integrating kheej kheej yog reflected ntau zaus los ntawm lub puab phab ntsa txheej los ua ib tug uniform illuminance nyob rau hauv lub puab phab ntsa. Txhawm rau kom tau txais qhov ntsuas qhov tseeb dua, qhov qhib qhov sib piv ntawm qhov sib xyaw ua ke yuav tsum yog me me li sai tau. Qhov qhib piv yog txhais raws li qhov piv ntawm thaj tsam ntawm lub kheej kheej ntawm qhov qhib ntawm qhov sib koom ua ke mus rau thaj tsam ntawm tag nrho cov phab ntsa sab hauv ntawm lub kheej kheej.
Post lub sij hawm: Aug-04-2021
