Ntsuas lub hauv paus ntsiab lus ntawm illuminance meter
Lub photovoltaic cell yog ib qho khoom siv hluav taws xob uas ncaj qha hloov lub teeb lub zog rau hauv hluav taws xob hluav taws xob. Thaum lub teeb raug coj mus rau saum npoo ntawm selenium photovoltaic cell, qhov teeb meem teeb dhau los ntawm cov yeeb yaj kiab hlau 4 kom ncav cuag qhov demarcation ntawm cov semiconductor selenium txheej 2 thiab cov yeeb yaj kiab hlau 4, thiab ua rau cov nyhuv photovoltaic ntawm lub interface. Qhov loj ntawm cov photogenerated tam sim no muaj ib qho proportionality rau lub illumination ntawm lub teeb-tau txais nto ntawm lub photocell. Hauv qhov no, yog tias ib qho kev sib txuas sab nraud txuas nrog, qhov tam sim no dhau mus, thiab tus nqi ntawm qhov tam sim no qhia los ntawm microampere meter kawm tiav hauv lux (Lx). Qhov loj ntawm photocurrent nyob ntawm qhov siv ntawm qhov teeb meem teeb. Lub illuminance meter muaj cov cuab yeej sib txawv-ceev, kom nws tuaj yeem ntsuas qhov pom kev siab thiab tsis muaj qhov pom kev. Cite hom illuminance meter:
1. Visual illuminance meter: siv tsis yooj yim, tsis siab precision, tsis tshua siv
2. photoelectric illuminance meter: feem ntau siv selenium photocell illuminance meter thiab silicon photocell illuminance meter
Qhov txawv ntawm UV illuminance meter thiab illuminance meter
UV illuminance meter thiab illuminance meter yog cov cuab yeej rau ntsuas lub teeb siv, tab sis UV illuminance meter ntsuas qhov siv ntawm ultraviolet lub teeb, thaum lub illuminance meter yog ntsuas qhov siv ntawm pom lub teeb. Zoo li lub npe yuav luag zoo ib yam, tab sis muaj nuj nqi sib txawv heev.
UV illuminance meter tseem hu ua ultraviolet irradiance meter, chav tsev feem ntau yog mW / cm2 lossis uW / cm2. Raws li lub ultraviolet band, tuaj yeem muab faib ua UVA, UVB, UVC, thiab lwm yam., qhov sib txawv ntawm lub teeb ultraviolet siv nyob rau hauv ntau zaus. Piv txwv li, UVC band ntawm ultraviolet lub teeb yog tsuas yog siv rau kev ua kom tsis muaj menyuam, UVB band ntawm ultraviolet lub teeb yog siv rau kev kho mob ntawm daim tawv nqaij, UVA band ntawm ultraviolet lub teeb yog siv los kho. Yog li nyob rau hauv kev xaiv ntawm UV illuminance meter kuj yuav tsum tau raws li lub teeb qhov chaw ntawm lub band xaiv.
Illuminance meter yog siv los ntsuas qhov luminance, brightness ntawm lub instrumentation, chav tsev yog Lux, feem ntau yog siv nyob rau hauv pej xeem qhov chaw lub teeb pom kev, teeb pom kev zoo kev lag luam, kev lag luam photography, theem teeb pom kev zoo thiab lwm qhov chaw.
