Ntsuas lub hauv paus ntsiab lus ntawm illuminance meters thiab hom kev koom tes
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 raug coj mus rau saum npoo ntawm selenium photocell, qhov teeb meem tshwm sim dhau los ntawm cov yeeb yaj kiab hlau 4 thiab mus txog qhov sib faib ntawm cov semiconductor selenium txheej 2 thiab cov yeeb yaj kiab hlau 4, tsim cov nyhuv photoelectric 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 meem. Lub illuminance meter muaj cov cuab yeej sib txawv-ceev, kom nws tuaj yeem ntsuas qhov pom kev siab thiab tsis tshua muaj illuminance. Cite hom illuminance meter:
1. qhov muag pom kev illuminance meter: tsis yooj yim siv, siab precision, tsis tshua siv 2. photoelectric illuminance meter: feem ntau siv selenium photocell illuminance meter thiab silicon photocell illuminance meter
Hom kev koom tes
1. Visual illuminance meter: siv tsis yooj yim, tsis siab precision, tsis tshua siv
2. Photoelectric illuminance meter: feem ntau siv selenium photoelectric cell illuminance meter thiab silicon photoelectric cell illuminance meter
Muaj pes tsawg leeg thiab kev siv ntawm photoelectric cell illuminance meter yuav tsum:
1. Composition: microampere meter, hloov pob qhov rooj, xoom hloov kho, davhlau ya nyob twg, photocells, V (λ) kho lim thiab lwm yam khoom.
Feem ntau siv selenium (Se) photocells lossis silicon (Si) photocells illuminance meter, tseem hu ua lux meter
2. Siv cov kev cai:
Illuminance meter sojntsuam yog ua los ntawm iav, yooj yim rau poob thiab tawg, thaum siv cov nyhuv dej tsis zoo heev
① photocell daim ntawv thov ntawm zoo linearity ntawm selenium (Se) photocells los yog silicon (Si) photocells; Lub sijhawm ua haujlwm ntev tuaj yeem ua kom muaj kev ruaj ntseg zoo, thiab siab rhiab heev; siab E thaum xaiv qhov siab tiv thaiv photocells, nws rhiab heev yog tsawg thiab linear, tsis yooj yim rau puas los ntawm lub teeb ci irradiation.
② them nyob rau hauv lub V (λ) kho lim, haum rau txawv xim kub lub teeb qhov chaw illumination, qhov yuam kev me me
③ photocell ua ntej qhov sib ntxiv ntawm cosine lub kaum sab xis them nyiaj (opal iav lossis yas dawb) vim tias qhov xwm txheej yog qhov loj, lub photocell deviates los ntawm txoj cai cosine.
④ 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)
