Lub teeb siv ntsuas ntsuas qhov twg yog siv?
Lub illuminance meter yog siv nyob rau hauv cov cheeb tsam no. 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. Photocell muaj pes tsawg leeg, kom pom cov spectrum teb nkhaus ua raws li tib neeg kev pom spectrum nkhaus raws li Commission on Illumination (CIE).
Portable illuminance meter belongs rau kev ua haujlwm ntawm kev ntsuas illuminance thiab tsim nyog rau kev ntsuas lub teeb pom kev thaum lub sijhawm ua liaj ua teb, lub neej txhua hnub, thiab kev mus ncig sab nraud. Nws siv lub photoresistor ua ib qho khoom siv hluav taws xob hloov hluav taws xob, uas muaj cov khoom siv hluav taws xob DC, thiab txuas mus txuas ntxiv hauv cov khoom siv hluav taws xob hloov hluav taws xob, hloov pauv, photoresistor, ntsuas Circuit Court, A / D converter, decoder, zaub tsav tsheb thiab ib qho zaub ntawm qhov tso zis kawg ntawm DC fais fab mov. . Lub SO 200K lub teeb siv ntsuas ntsuas tsis txhob siv lub taub hau photometric, thiab DC fais fab mov tsuas yog siv 9VBlock 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 Nws muaj qhov zoo ntawm kev ua haujlwm thiab lwm yam.
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 qhov muag pom thiab ob qhov zoo tib yam photoelectric receivers los tsim ib qho kev kuaj pom ob txoj hauv kev. Lub Circuit Court ib feem txais ob txoj kev amplification, thiaj li hais tias tus nqi hluav taws xob ntawm qhov yuav tsum tau kuaj band yuav raug ntsuas, thiab lwm yam muaj zog heev astigmatism txiav-tawm.
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 teeb pom kev zoo: Lub ntsuas hluav taws xob 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.
