Kev taw qhia thiab kev ua haujlwm ntawm lub ntsuas hluav taws xob
1. Illuminometer:
Lub lux meter, tseem hu ua lux meter, yog ib qho cuab yeej tshwj xeeb rau kev ntsuas luminosity thiab brightness. Nws yog qhov ntsuas ntawm lub teeb siv lub teeb (illuminance), uas yog qhov degree uas ib yam khoom yog illuminated, uas yog, qhov piv ntawm cov luminous flux tau nyob rau saum npoo ntawm cov khoom mus rau qhov chaw illuminated. Lub ntsuas hluav taws xob feem ntau yog tsim los ntawm selenium lossis silicon photovoltaic cell thiab microampere meter.
2. Kev ntsuas txoj cai:
Lub cell photovoltaic 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 tshwm sim nyob rau saum npoo ntawm selenium hnub ci cell, qhov teeb meem tshwm sim dhau los ntawm cov hlau nyias zaj duab xis 4 thiab mus txog qhov sib cuam tshuam ntawm semiconductor selenium txheej 2 thiab cov hlau nyias zaj duab xis 4, tsim cov nyhuv photoelectric ntawm lub interface. Qhov loj ntawm lub photocurrent generated yog proportional rau lub illuminance nyob rau saum npoo ntawm photovoltaic cell txais lub teeb. Hauv qhov no, yog tias ib qho kev sib txuas sab nraud txuas nrog, qhov tam sim no yuav ntws los ntawm, thiab tus nqi tam sim no yuav qhia rau ntawm microampere meter nrog lux (Lx) raws li qhov ntsuas. Qhov loj ntawm photocurrent nyob ntawm lub zog ntawm qhov teeb meem teeb. Lub illuminance meter muaj lub iav hloov khoom siv, yog li nws tuaj yeem ntsuas ob qhov siab thiab qis illuminance.
Hom illuminance meters: 1. Visual illuminance meter: siv tsis yooj yim, tsis muaj tseeb, tsis tshua siv. 2. Optoelectronic illuminance meter: feem ntau siv selenium solar cell illuminance meter thiab silicon solar cell illuminance meter.
Qhov txawv ntawm UV illuminance meter thiab illuminance meter
UV lux meter thiab lux meter yog ob qho tib si rau kev ntsuas lub teeb siv, tab sis UV lux meter ntsuas qhov siv ntawm ultraviolet lub teeb, thaum lux meter ntsuas qhov siv ntawm pom lub teeb. Cov npe yuav zoo sib xws, tab sis cov haujlwm sib txawv heev.
UV illuminance meter, tseem hu ua ultraviolet irradiance meter, feem ntau yog ntsuas hauv mW / cm2 lossis uW / cm2 units. Raws li lub wavelength ntau ntawm cov hluav taws xob ultraviolet, nws tuaj yeem muab faib ua UVA, UVB, UVC, thiab lwm yam. Qhov sib txawv wavelengths ntawm ultraviolet hluav taws xob yog siv rau ntau qhov xwm txheej. Piv txwv li, UVC ultraviolet rays yog siv los ua kom tsis muaj menyuam, UVB ultraviolet rays yog siv rau kev kho mob ntawm daim tawv nqaij, thiab UVA ultraviolet rays yog siv los kho. Yog li thaum xaiv lub sijhawm UV teeb pom kev zoo, nws tseem yuav tsum tau xaiv raws li lub wavelength band ntawm lub teeb ci.
Illuminometer yog ib qho cuab yeej siv los ntsuas luminosity thiab brightness, nrog rau chav tsev ntawm Lux. Nws yog tsuas yog siv los xyuas qhov illuminance ntawm pej xeem teeb pom kev zoo, teeb pom kev lag luam ntau lawm, kev lag luam yees duab, theem teeb pom kev zoo thiab lwm qhov chaw.
