Kauj ruam los ntawm kauj ruam qhia txog kev siv cov illuminance meters
① Qhib lub hwj chim.
② Qhib lub npog qhov muag pom lub teeb thiab tso lub teeb ntes kab rov tav rau hauv txoj haujlwm ntsuas.
③ Xaiv lub ntsuas ntsuas tsim nyog.
Yog tias tsuas yog "1" pom nyob rau sab laug kawg ntawm cov zaub, nws txhais tau hais tias qhov illuminance ntau dhau lawm thiab koj yuav tsum nias qhov tseem ceeb (⑧ qhov tseem ceeb) los kho qhov ntsuas qhov sib npaug.
④ Lub illuminance meter pib ua hauj lwm thiab qhia cov illuminance tus nqi ntawm cov zaub.
⑤ Cov ntaub ntawv qhia ntawm cov zaub hloov tas li, thaum cov ntaub ntawv tso saib ruaj khov dua, nias lub khawm tuav kom kaw cov ntaub ntawv.
⑥ Nyeem thiab sau cov txiaj ntsig pom tau pom hauv cov ntawv nyeem. Tus nqi pom zoo yog sib npaug ntawm cov khoom ntawm tus lej uas tau pom nyob rau hauv qhov kev nyeem ntawv thiab tus nqi ntau.
Piv txwv li: 500 yog tso tawm rau ntawm qhov screen, lub kaum sab xis sab xis ntawm cov xwm txheej yog "× 2000", qhov ntsuas qhov ntsuas qhov pom kev yog 1,000,000lx, piv txwv li (500 × 2000) .
⑦ Nias lub ntsuas phoo dua kom thim qhov kev nyeem tus nqi ntsuas phoo.
⑧ Txhua qhov kev soj ntsuam, peb nyeem sib law liag thiab sau cia.
⑨ Tom qab txhua qhov kev ntsuas ua tiav, nias lub hwj huam hloov khawm kom txiav tawm lub hwj huam mov.
⑩ Npog lub hau ntawm lub teeb pom kev thiab muab nws rov qab rau hauv lub thawv.
Illuminance meter ceev faj
1, daim ntawv thov photocell ntawm zoo linearity ntawm selenium (Se) photocells los yog silicon (Si) photocells; kev ua haujlwm ntev ntev tuaj yeem ua kom muaj kev ruaj ntseg zoo, thiab siab rhiab heev; siab E thaum xaiv lub siab sab hauv photocells, nws tsis tshua muaj rhiab heev thiab zoo linearity, los ntawm lub teeb ci tsis yooj yim rau kev puas tsuaj.
2, them nyiaj hauv V (λ) kho lim, haum rau cov xim sib txawv ntawm qhov kub thiab txias qhov teeb pom kev zoo, qhov yuam kev me me.
3, lub photocell ua ntej ntxiv cosine lub kaum sab xis compensator (opal iav los yog dawb yas) vim hais tias qhov teeb meem lub kaum sab xis yog loj, lub photocell deviates los ntawm txoj cai cosine.
4, lub illuminance meter yuav tsum ua hauj lwm nyob rau hauv chav tsev kub los yog nyob ze ntawm chav tsev kub (photocell drift nrog kub hloov thiab hloov.
