Lub hauv paus ntsiab lus ntawm kev ntsuas qhov ntsuas hluav taws xob yog dab tsi?
Tib neeg thiab txhua tus tsiaj nyob hauv lub ntiaj teb ntawm qhov kaj. Yog tsis muaj teeb, kev ua neej nyob yuav tsum tso tseg. Hauv kev coj ua ntawm tib neeg rov siv lub teeb pom kev zoo thiab tsim cov khoom siv teeb pom kev zoo, lawv ua cov txheeb ze sib piv ntawm photometry txhua lub sijhawm. Photometry yog dav siv nyob rau hauv lub neej txhua hnub. Yog li ntawd, manufacturers tau tsim ntau yam photometers, ntawm cov illuminance meters yog ib hom ntawm.
Ib qho illuminance meter (los yog lux meter) yog ib qho kev luam tawm optical fiber ntau thiab cov khoom siv kho qhov muag rau kev ntsuas lub teeb ci thiab lub teeb ci ntuj. Nws daws qhov teeb meem ntawm kev ntsuas tsis tu ncua ntawm lub teeb siv thiab tsis siv neeg kaw. Nws yog tsim los ntawm lub teeb pom kev, lub tshuab hluav taws xob hloov pauv tsis siv neeg, lub kaw lus nkhaus, lub tshuab luam ntawv digital thiab ib qho khoom siv tam sim no digital. Lub nkhaus kaw cov cuab yeej siv cov txheej txheem kho qhov muag fiber ntau frictionless, thiab lub teeb pom kev yog lub lim thiab xiav silicon Nws yog tsim los ntawm cov cell photovoltaic kom pom cov spectrum teb nkhaus raws li tib neeg kev pom spectrum nkhaus tau teev tseg los ntawm International Commission on Illumination ( CIE).
Lub hauv paus ntsiab lus ntawm kev ntsuas lub ntsuas hluav taws xob: lub photoelectric caij uas ncaj qha hloov lub teeb lub zog rau hauv lub zog hluav taws xob. Illumination yog qhov ntom ntom ntawm luminous flux tau txais ntawm lub dav hlau illuminated. Lub illuminance meter yog siv los ntsuas lub teeb siv (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. Nws yog ib qho ntawm cov cuab yeej siv feem ntau hauv kev ntsuas qhov pom kev.
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. Selenium (Se) photovoltaic cells los yog silicon (Si) photovoltaic cells feem ntau yog siv los ua lub teeb pom kev, los yog hu ua lux meters.
Cov kev xav tau ntawm kev siv lub ntsuas hluav taws xob: Lub ntsuas hluav taws xob ntsuas hluav taws xob yog ua los ntawm iav, uas yooj yim kom poob thiab puas, thiab cov nyhuv dej tsis zoo thaum siv tib lub sijhawm.
1. Cov cell photovoltaic yuav tsum siv cov selenium (Se) photovoltaic cell los yog silicon (Si) photovoltaic cell nrog zoo linearity; lawv muaj peev xwm tswj tau zoo stability rau lub sij hawm ntev thiab muaj siab rhiab heev; Thaum E yog siab, siv cov cell photovoltaic nrog siab sab hauv tsis kam, uas muaj tsawg rhiab heev thiab linearity. Zoo, tsis yooj yim puas los ntawm lub teeb muaj zog;
2. Muaj V (λ) kho lim sab hauv, uas yog tsim rau illumination ntawm lub teeb qhov chaw nrog cov xim sib txawv thiab muaj me me yuam kev;
3. Ntxiv ib cosine lub kaum sab xis compensator (opalescent iav los yog dawb yas) nyob rau hauv pem hauv ntej ntawm lub photovoltaic cell vim hais tias thaum lub teeb meem lub kaum sab xis loj, lub photovoltaic cell deviates los ntawm txoj cai cosine;
4. Lub illuminance meter yuav tsum ua hauj lwm ntawm chav tsev kub los yog ze rau chav tsev kub (photocell drift hloov nrog kub hloov).
Classification ntawm illuminance meters:
1. Visual illuminance meter: Nws tsis yooj yim rau siv, muaj qhov tseeb tsawg thiab tsis tshua siv;
2. Photoelectric illuminance meter: Selenium photovoltaic illuminance meter thiab silicon photovoltaic illuminance meter yog feem ntau siv.
