Lub hauv paus ntsiab lus thiab kev siv thev naus laus zis ntawm lub ntsuas hluav taws xob tau nthuav tawm
Ntau tus neeg yuav thiab tau nkag siab tiag tiag lub ntsuas hluav taws xob, thiab txawm tias tsis paub nws lub hauv paus ntsiab lus thiab nws cov cuab yeej siv. Cia wb mus saib ua ke:
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. Kev sib xyaw ntawm cov cell photovoltaic, 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 li photoelectric hloov dua siab tshiab ntaus ntawv, uas muaj ib tug DC fais fab mov, thiab yog sib txuas nyob rau hauv series nrog ib tug voltage converter Circuit Court, ib tug hloov, ib tug photoresistor, ib tug xeem Circuit Court, ib tug A / D converter, ib tug decoder, ib tug zaub. tsav tsheb thiab ib qho zaub 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 xav tau 3V roj teeb. Lub decoder, cov zaub tsav tsheb thiab cov zaub tau muab tso rau ntawm daim npav sib xyaw ua ke, uas ua rau nws yooj yim hauv cov qauv, me me, yooj yim txav, thiab rhiab hauv cov lus teb. Etc. Cov qauv siv hluav taws xob muaj feem xyuam rau lub ntsuas hluav taws xob hluav taws xob ultraviolet, uas yog cov cuab yeej siv kho qhov muag. Nws yog tus cwj pwm los ntawm ob txoj hauv kev txiav tawm qhov muag pom thiab ob qhov zoo tib yam photoelectric receivers los tsim ib lub teeb pom kev zoo dua. 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 teeb pom kev zoo: Lub teeb pom kev zoo yog tsim los ntawm 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 .
