Kev ntsuas cov qauv thiab cov qauv ntawm cov ntsuas hluav taws xob
1. Illumination xeem txoj cai
Illumination yog qhov ntom ntom ntawm luminous flux tau txais ntawm lub dav hlau illuminated. Illumination kua txiv yog ib qho cuab yeej siv los ntsuas qhov illumination ntawm qhov illuminated nto. Nws yog ib qho ntawm cov cuab yeej siv feem ntau hauv kev ntsuas qhov pom kev.
2. Lub hauv paus ntsiab lus ntawm lub illuminance meter
Lub illuminance meter muaj ob ntu: lub taub hau photometric (tseem hu ua lub teeb tau txais kev sojntsuam, suav nrog lub receiver, V (λ) khub lim, thiab cosine corrector) thiab nyeem ntawv.
Kev ntsuas cov kauj ruam thiab cov txheej txheem
Hauv chav ua haujlwm, qhov teeb pom kev zoo yuav tsum ntsuas ntawm txhua qhov chaw ua haujlwm (piv txwv li, rooj, workbench) thiab tom qab ntawd ntsuas qhov nruab nrab. Rau cov chav khoob lossis chav tsis ua haujlwm uas qhov chaw ua haujlwm tsis tau txiav txim siab, yog tias cov teeb pom kev dav dav siv ib leeg, ib qho 0.8m siab kab rov tav dav hlau feem ntau yog xaiv los ntsuas qhov illuminance. Faib qhov ntsuas rau hauv qhov sib npaug ntawm cov squares (los yog ze li ntawm squares), ntsuas qhov illumination Ei ntawm qhov nruab nrab ntawm txhua square, thiab nws qhov nruab nrab illumination yog sib npaug rau qhov nruab nrab illumination ntawm txhua qhov taw tes, uas yog
Qhov twg Eav - qhov nruab nrab illumination ntawm qhov ntsuas cheeb tsam, lx;
Ei —— illuminance ntawm qhov chaw ntawm txhua daim phiaj ntsuas, lx;
N — Tus naj npawb ntawm cov ntsiab lus ntsuas.
Illumination uniformity yog hais txog qhov piv ntawm qhov tsawg kawg nkaus illumination rau qhov nruab nrab illumination ntawm ib qho chaw teev tseg, uas yog:
Nyob rau hauv cov mis, Emin — hais txog qhov tsawg kawg nkaus illumination ntawm qhov ntsuas qhov chaw, lx.
Hauv qhov kev sim no, qhov ntsuas qhov taw qhia saum npoo txheej txheej hauv chav tuaj yeem yog qhov chaw xaiv, thiab qhov tsawg kawg nkaus illumination tuaj yeem suav tias yog qhov tsawg kawg nkaus illumination tus nqi hauv qhov ntsuas ntsuas.
Ntsuas qhov ntev ntawm txhua qhov square hauv chav rau lm. Ib chav loj tuaj yeem
Qhov twg Eav - qhov nruab nrab illumination ntawm qhov ntsuas cheeb tsam, lx;
Ei —— illuminance ntawm qhov chaw ntawm txhua daim phiaj ntsuas, lx;
N — Tus naj npawb ntawm cov ntsiab lus ntsuas.
Illumination uniformity yog hais txog qhov piv ntawm qhov tsawg kawg nkaus illumination rau qhov nruab nrab illumination ntawm ib qho chaw teev tseg, uas yog:
Nyob rau hauv cov mis, Emin — hais txog qhov tsawg kawg nkaus illumination ntawm qhov ntsuas qhov chaw, lx.
