Lub ntsiab lus ntawm photometers
Lub teeb ntsuas hluav taws xob yog qhov ntsuas qhov ntsuas qhov muag uas ntsuas qhov siv ntawm lub teeb ci thiab ntuj tsim. Tau daws qhov teeb meem ntawm kev ntsuas 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 tshuab kaw lus nkhaus, lub tshuab luam ntawv digital thiab cov khoom siv digital digital instantaneous. Lub nkhaus kaw cov cuab yeej siv kho qhov muag fiber ntau uas tsis yog kev sib txhuam cov ntaub ntawv, thiab cov khoom siv kho qhov muag yog tsim los ntawm cov khoom siv kho qhov muag thiab cov xim 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 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, kom cov qauv yooj yim, lub ntim me me, nws yooj yim txav, thiab nws kuj muaj cov lus teb rhiab heev. 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, kom cov hluav taws xob muaj nuj nqis ntawm qhov kev xeem band yuav raug ntsuas kom raug, thiab lwm yam Astigmatism txiav tawm muaj zog heev.
