Lub illuminance meter txoj kev khiav hauj lwm txoj kev xav thiab daim ntawv thov technology tau tshwm sim.
Lub illuminance meter yog lub tshuab luam ntawv tsis siv neeg kho qhov muag fiber ntau thiab cov khoom siv kho qhov muag rau kev ntsuas qhov siv ntawm cov teeb pom kev zoo thiab lub teeb 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 photodetector, ib qho tsis siv neeg iav hloov amplifier Circuit Court, ib tug nkhaus kaw cov cuab yeej, lub tshuab luam ntawv digital thiab ib qho instantaneous digital zaub ntaus ntawv. Lub nkhaus kaw cov cuab yeej siv cov txheej txheem kho qhov muag fiber ntau frictionless, thiab lub photodetector yog tsim los ntawm lub lim thiab xiav silicon photocell, kom pom cov spectrum teb nkhaus ua raws li tib neeg kev pom spectrum nkhaus uas tau teev tseg los ntawm International Commission on Illumination (CIE) .
Lub hnab tshos hluav taws xob illuminance meter belongs rau kev ntsuas kev ntsuas teeb pom kev zoo thiab tsim nyog rau kev ntsuas lub teeb pom kev thaum lub sijhawm ua liaj ua teb, lub neej txhua hnub, thiab mus ncig sab nraud. Nws siv lub photoresistor ua ib qho khoom siv hluav taws xob hloov hluav taws xob, uas muaj DC fais fab mov, hloov hluav taws xob hloov hluav taws xob, hloov hluav taws xob, photoresistor, ntsuas hluav taws xob, A / D converter, decoder, tus tsav tsheb thiab cov khoom sib txuas hauv series. ntawm qhov tso zis kawg ntawm DC fais fab mov. Tus qauv siv hluav taws xob zam kev siv lub taub hau photometric, thiab DC fais fab mov tsuas yog siv 3V roj teeb. Lub decoder, tso saib tsav tsheb thiab cov zaub tau muab tso rau ntawm daim npav sib xyaw ua ke, ua rau nws yooj yim hauv cov qauv, me me, yooj yim txav, thiab muaj qhov zoo ntawm cov lus teb zoo. Cov qauv siv hluav taws xob cuam tshuam nrog lub ntsuas hluav taws xob ultraviolet illuminance meter, uas yog cov cuab yeej ntsuas qhov muag. Nws yog tus cwj pwm los ntawm ob txoj kev txiav-tawm cov ntxaij lim dej thiab ob qhov zoo tib yam photoelectric receivers los tsim ib lub teeb ob lub teeb. Lub Circuit Court ib feem txais ob txoj kev amplification, kom cov hluav taws xob muaj nuj nqis ntawm qhov yuav tsum tau kuaj band yuav raug ntsuas kom raug, thiab lub teeb stray cut-off muaj zog heev.
Lub hauv paus ntsiab lus ntawm kev ntsuas lub teeb pom kev zoo: lub teeb pom kev yog qhov ntom ntom ntawm cov luminous flux tau txais ntawm lub dav hlau illuminated. Lub illuminance meter yog ib qho cuab yeej siv los ntsuas qhov illuminance ntawm lub teeb pom kev zoo, thiab nws yog ib qho ntawm cov cuab yeej siv dav hauv kev ntsuas illuminance.
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.
