Cov lus piav qhia txog qhov Illuminance calibration cov ntsiab cai thiab txoj kev ntawm Illuminance Meter
Calibration cov ntsiab cai:
Ua kom ci ntawm photovoltic cell yog ls {{= Kuv / r2, thiab hloov R kom tau txais cov ntawv sau cov ntaub ntawv txawv. Hloov ua cov nplai tam sim no mus rau lub qhov hluav taws xob cenpumance raws li kev sib sau ntawm e thiab kuv.
Txoj kev calibration:
Siv lub teeb siv lub teeb ua haujlwm teeb, ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm Ammeter ntawm kev ua haujlwm ntawm lub xov tooj ntawm lub ntsej muag, thiab cov teeb meem Los ntawm qhov no, ib qho ntawm thaj chaw thaj chaw thaj tsam txawv uas kuv tuaj yeem tau txais, thiab qhov sib txawv ntawm cov photocrurrent Kuv thiab qhov kev txiav txim siab ntawm qhov kev txiav txim siab ntawm lub chaw ntsuas dej. Txoj kev ntsuas hluav taws xob nkhaus ntawm kev ntsuas Illuminance tuaj yeem faib los ntawm lub xov tooj ntawm daim ntawv Illuminance, uas yog qhov ntsuas hluav taws xob ntawm kev ua kom zoo nkauj illuminance
Yam cuam tshuam rau kev nkhaus calibration:
Thaum hloov photovoltic hlwb thiab ammeters, kev rov ua dua tshiab yog qhov yuav tsum tau; Tom qab siv Muruminance meter rau ib lub sijhawm, nws yuav tsum tau recantibrated (feem ntau 1-2 sij hawm ib xyoos); Siab precision illuminance yuav ntsuas siv cov teeb meem teeb lub teeb ci ntsa iab; Kev nthuav dav cov kev ntsuas hluav taws xob ntau ntawm cov ntsuas hluav taws xob tuaj yeem hloov pauv R, thiab teeb tsa tus qauv sib txawv kuj tseem siv tau. Ib qho kev loj heev ammeter tuaj yeem xaiv tau
Kev ntsuas qhov zoo tshaj plaws yuav tsum muaj cov xwm txheej hauv qab no:
● Qhov loj me thiab lub teeb yuag (sib xyaw loj, lub teeb yuag)
Cov tsam thawj rau kev siv dav hlau illuminance yog qhov dav dav heev, thiab lub sijhawm ua haujlwm me me thiab lub teeb hnyav yog thawj qhov yuav tsum tau ua ua ntej rau kev thaj chaw illuminance.
●Qhov yog
Qhov zoo ntawm kev ua kom illuminance yog qhov tseeb hais txog nws qhov tseeb. Yog lawm, nws tseem muaj feem cuam tshuam nrog nws tus nqi, yog li ntawd nws yog ib qho tsim nyog los yuav ib qho kev tsim kho illuminance nrog cov nqi tsim nyog, feem ntau nrog kev ua yuam kev ntawm tsis muaj ntau tshaj ± 15%.
Cov xim them nyiaj
Muaj ntau yam teeb meem teeb tsa, qee qhov tsom rau lub teeb liab ntev ntev, lossis luv dua wavelength xiav ntshav lub teeb ci ntsa iab; Kuj tseem muaj cov kev faib tawm tshwj xeeb xws li Incandescent qij, qhov twg cov rhiab ntawm tib lub wavelengths, yog li cov nyiaj them me ntsis yog qhov tsim nyog.
● Koob iav cos cosine
Raws li peb txhua tus paub, qhov ci ci ntawm ci ntsa iab saum npoo muaj feem xyuam rau qhov xwm txheej kaum ntawm lub teeb ci. Los ntawm tib lub token qub, thaum siv ib qho kev ntsuas illuminance rau kev ntsuas, lub kaum sab xis ntawm cov teeb meem yuav cuam tshuam rau kev nyeem ntawm illuminance meter. Yog li seb puas yog qhov zoo illuminance muaj cosine kev them nyiaj tsis tuaj yeem tsis quav ntsej.
