Lub hauv paus ntsiab lus thiab kev siv tshuab ntawm illuminance meter tau qhia
Ntau tus neeg yuav tsis tau nkag siab tiag tiag lub ntsuas hluav taws xob, thiab tej zaum yuav tsis paub nws txoj cai lossis kev siv tshuab. Cia wb mus saib ua ke:
Illuminometer yog ib qho kev ntsuas kho qhov muag uas tau luam tawm cov fibers optical thiab ntsuas qhov siv ntawm cov khoom tsim thiab ntuj tsim. 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 kev hloov pauv tsis siv neeg amplifier Circuit Court, lub kaw lus nkhaus, lub tshuab luam ntawv digital, thiab ib qho khoom siv digital instantaneous. Lub nkhaus kaw cov cuab yeej siv lub fiber optic frictionless kaw txoj kev, thiab lub photodetector yog tsim los ntawm ib tug lim thiab ib tug xiav silicon photovoltaic cell, ua rau pom spectrum teb nkhaus raws li tus tib neeg pom spectrum nkhaus teev los ntawm lub International Commission on Illumination (CIE) .
Hnab tshos hluav taws xob illuminance meter belongs rau lub teb ntawm illuminance ntsuas technology, haum rau ntsuas illuminance nyob rau hauv kev ua liaj ua teb ntau lawm, lub neej txhua hnub, thiab sab nraum zoov mus txawv tebchaws. Nws siv lub photoresistor ua ib qho khoom siv hluav taws xob hloov hluav taws xob, uas muaj DC fais fab mov. Qhov hluav taws xob hloov hluav taws xob hloov hluav taws xob, hloov pauv, photoresistor, ntsuas hluav taws xob, A / D converter, decoder, tso saib tsav tsheb, thiab cov khoom sib txuas ua ke nyob rau hauv series ntawm qhov tso zis hluav taws xob ntawm DC fais fab mov. Cov qauv siv hluav taws xob no zam kev siv lub taub hau photometric, thiab tsuas yog yuav tsum muaj 3V roj teeb rau DC fais fab mov. Lub decoder, tso saib tsav tsheb, thiab cov zaub tau muab tso rau ntawm ib 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 rhiab. Lub tshuab ntsuas hluav taws xob UV, yog cov cuab yeej ntsuas qhov muag. Nws feature yog ib tug dual txoj kev detector muaj li ntawm ob unidirectional txiav-tawm optical lim thiab ob zoo tib yam photoelectric receivers. Lub Circuit Court ib feem siv dual txoj kev amplification, uas tuaj yeem ntsuas qhov ntsuas hluav taws xob ntawm qhov ntsuas qhov xav tau. Lub teeb stray cutoff muaj zog
Lub hauv paus ntsiab lus ntawm kev ntsuas lub ntsuas hluav taws xob: lub teeb pom kev yog qhov ntom ntom ntawm cov luminous flux tau txais ntawm lub dav hlau illuminated. Illuminometer yog ib qho cuab yeej siv los ntsuas qhov illuminance ntawm lub teeb pom kev zoo thiab yog ib qho ntawm cov cuab yeej siv feem ntau hauv kev ntsuas qhov pom.
Lub hauv paus ntsiab lus ntawm lub ntsuas hluav taws xob: 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.
