Vim li cas kuv thiaj li yuav tsum tau siv lub ntsuas hluav taws xob?
● Me me thiab lub teeb yuag (Compact Size, Lub teeb yuag)
Lub cib fim rau kev siv lub ntsuas hluav taws xob yog qhov dav heev, thiab lub sijhawm ntawm daim ntawv thov feem ntau nyob hauv ntau qhov chaw, yog li lub cev nqa tau nrog me me thiab lub teeb yuag yog thawj qhov yuav tsum tau ua ua ntej rau lub ntsuas hluav taws xob.
● Qhov tseeb
Qhov zoo ntawm lub illuminance meter yog kiag li muaj feem xyuam rau nws qhov tseeb. Tau kawg, nws kuj tseem cuam tshuam nrog nws cov nqi, yog li nws yog qhov yuav tsum tau yuav lub ntsuas hluav taws xob nrog qhov tseeb ntawm tus nqi tsim nyog, feem ntau nrog qhov yuam kev tsis pub dhau ± 15%.
Xim Xaus
Muaj ntau hom teeb pom kev zoo, qee qhov tsom mus rau lub teeb ntev lub teeb liab siab siab, lossis luv luv wavelength xiav xiav teeb xws li Hnub Teeb fluorescent teeb; Kuj tseem muaj cov kab sib npaug sib npaug xws li cov qij incandescent, qhov rhiab heev ntawm tib lub illuminance meter yuav txawv me ntsis rau cov wavelengths sib txawv, yog li kev them nyiaj nruab nrab yog tsim nyog.
● Kev them nyiaj Cosine
Raws li peb txhua tus paub, qhov ci ntsa iab ntawm qhov chaw illuminated yog cuam tshuam nrog qhov xwm txheej ntawm lub teeb ci. Los ntawm tib lub token, thaum siv lub ntsuas hluav taws xob rau kev ntsuas, lub kaum sab xis ntawm qhov tshwm sim ntawm lub sensor thiab lub teeb ci yuav cuam tshuam rau kev nyeem ntawv ntawm lub ntsuas hluav taws xob. Yog li seb lub ntsuas hluav taws xob zoo puas muaj cov txiaj ntsig cosine tsis tuaj yeem tsis quav ntsej.
