Cov kauj ruam nyob rau hauv kev siv lub illuminance meter thiab illuminance calibration
Cov kauj ruam rau kev siv
① Qhib lub hwj chim.
② Qhib lub npog lub teeb pom kev thiab tso lub teeb ntes kab rov tav rau hauv txoj haujlwm ntsuas.
③ Xaiv qhov ntsuas qhov tsim nyog.
Yog tias tsuas yog "1" tshwm 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 tus yuam sij) 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 pom 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 tseg.
⑨ Tom qab txhua qhov kev ntsuas tiav, nias lub hwj huam hloov khawm kom txiav tawm lub hwj chim mov.
⑩ Npog lub hau ntawm lub teeb pom kev thiab muab nws rov qab rau hauv lub thawv.
Illumination calibration
Lub hauv paus ntsiab lus ntawm calibration:
Ua Ls irradiate lub photocell vertically → E=I / r2, hloov r kom tau tus nqi ntawm lub teeb tam sim no nyob rau hauv txawv illuminance, thiab hloov lub teev tam sim no mus rau illuminance scale los ntawm kev sib tham ntawm E thiab i.
Txoj kev Calibration:
Kev siv lub teeb siv hluav taws xob teeb pom kev zoo, nyob ze rau qhov chaw ua haujlwm ntawm qhov chaw teeb pom kev zoo, hloov lub photocell thiab tus qauv teeb nyob deb l, kaw nyob rau hauv qhov kev ncua deb ntawm ammeter nyeem, los ntawm txoj cai inverse square ntawm kev ncua deb E {{ 0}} I / r2 xam ntawm lub teeb illuminance E, uas tuaj yeem tau txais los ntawm ntau qhov sib txawv ntawm cov teeb pom kev sib txawv ntawm lub teeb tam sim no tus nqi ntawm i, rau lub photocurrent i thiab qhov illuminance ntawm E nkhaus, uas yog, rau qhov illuminance ntawm calibration. nkhaus los ntawm qhov illuminance no tuaj yeem ua rau hu Indexing uas yog qhov ntsuas qhov ntsuas qhov ntsuas
Cov yam ntxwv cuam tshuam rau calibration nkhaus:
Photocells thiab ammeter hloov yuav tsum tau rov calibrated; illuminance meter yuav tsum tau siv rau ib lub sij hawm yuav tsum tau re-calibrated illuminance meter (feem ntau yuav tsum tau kuaj xyuas 1-2 zaug ib xyoos); high-precision illuminance meter tuaj yeem siv los kuaj xyuas lub teeb siv ntawm cov qauv teeb; nthuav qhov ntau ntawm illuminance meter tuaj yeem hloov pauv mus rau qhov deb r, koj tuaj yeem xaiv lub teeb sib txawv, kev siv me me ntawm ammeter.
