Cov qauv siv hluav taws xob illuminometer zam kev siv lub taub hau kho qhov muag, DC fais fab mov tsuas yog xav tau lub roj teeb 3V, thiab lub tshuab txiav tawm, cov zaub tsav tsheb thiab cov zaub tau muab tso rau ntawm daim npav sib xyaw ua ke, uas ua rau cov qauv yooj yim, me me, yooj yim. txav mus, thiab muaj cov lus teb Sensitive thiab lwm yam zoo. Ordinary illuminometers siv photoresistors li photoelectric hloov dua siab tshiab cov cuab yeej, uas muaj ib tug DC fais fab mov, thiab yog sib txuas ua ke nyob rau hauv series nrog lub voltage converter Circuit Court, hloov, photoresistor, xeem Circuit Court, A / D converter, decoder, thiab tso saib tsav tsheb nyob rau hauv lub output kawg. DC fais fab mov. thiab tso saib.
Cov yam ntxwv ntawm cov qauv siv hluav taws xob illuminometer:
1. Qhov tseeb ntawm lub ntsuas hluav taws xob muaj feem xyuam rau nws qhov tseeb. Ntawm chav kawm, nws kuj yog ze ze rau nws tus nqi. Yog li ntawd, nws yog ib qho tsim nyog yuav tau yuav lub teeb pom kev zoo illuminometer ntawm tus nqi tsim nyog. Feem ntau, qhov yuam kev yuav tsum tsis pub tshaj ± 15 feem pua.
2. Cov hom xim them nyiaj lub teeb qhov chaw yog tag nrho-encompassing. Qee qhov hais txog cov teeb liab siab siab nrog lub teeb ntev dua, lossis xiav-violet teeb nrog luv luv wavelengths xws li Hnub Teeb fluorescent teeb; kuj tseem muaj ntau qhov sib npaug sib npaug xws li qhov muag teeb. Tib lub illuminance meter muaj qhov sib txawv wavelengths. rhiab heev yuav txawv me ntsis, yog li yuav tsum tau them nyiaj nruab nrab.
3. Kev them nyiaj Cosine Peb txhua tus paub tias qhov ci ntsa iab ntawm lub teeb pom kev muaj feem cuam tshuam nrog qhov xwm txheej ntawm lub teeb ci. Nyob rau hauv tib txoj kev, thaum ntsuas nrog ib tug illuminometer, lub sensor (Sensor) thiab qhov teeb meem lub kaum sab xis ntawm lub teeb qhov chaw yuav ib txwm cuam tshuam tus nqi nyeem ntawv ntawm lub illuminometer.
Yog li seb lub ntsuas hluav taws xob zoo puas muaj lub luag haujlwm ntawm cosine them nyiaj tsis tuaj yeem tsis quav ntsej.
4. Nyob rau hauv cov nqe lus ntawm ntim thiab qhov hnyav, lub illuminance meter muaj ntau ntau lub sijhawm, thiab lub sijhawm siv nws yog feem ntau nyob rau hauv ntau qhov chaw, yog li portable me me thiab lub teeb yuag yog qhov yuav tsum tau ua ua ntej rau lub illuminance meter.
