General Requirements thiab Classification ntawm Illumination Meters
Lub teeb meter ua haujlwm li cas?
Lub germanium photocell yog siv los ua kev sojntsuam. Vim qhov sib txawv ntawm lub teeb, qhov tam sim no generated los ntawm photocell yog txawv. Qhov tam sim no yog tam sim no DC amplified, thiab tom qab ntawd DC teeb liab tau hloov mus rau hauv lub teeb liab digital uas ncaj qha cuam tshuam qhov kev siv ntawm lub teeb los ntawm kev hloov pauv digital-rau-analog thiab tso tawm.
General xav tau rau lub teeb meters
1. Me me thiab lub teeb yuag (CompactSize, LightWeight)
Lub cib fim rau kev siv lub ntsuas hluav taws xob yog qhov dav heev, thiab lub sijhawm siv feem ntau nyob hauv ntau qhov chaw. Yog li ntawd, thawj qhov yuav tsum tau ua ua ntej rau lub ntsuas hluav taws xob portable yog nws qhov me me thiab lub teeb yuag.
2. Qhov tseeb
Txawm hais tias lub teeb ntsuas qhov zoo lossis qhov tsis zoo muaj qhov sib raug zoo nrog 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 ntsuas hluav taws xob siab kom raug ntawm tus nqi tsim nyog. Feem ntau, nws yog qhov tsim nyog kom muaj qhov yuam kev tsis ntau tshaj ± 15%.
3. Xim Compensation﹝ColorCompensation﹞
Cov hom teeb pom kev zoo yog tag nrho-encompassing. Qee qhov tsom mus rau cov teeb liab siab siab nrog lub teeb ntev dua, lossis cov teeb xiav-violet nrog luv luv wavelengths xws li Daylight fluorescent teeb. Kuj tseem muaj qhov sib npaug sib npaug xws li cov qij taws teeb. Tib lub illuminance meter yuav muaj qhov sib txawv me ntsis rau qhov sib txawv wavelengths. sib txawv, yog li tsim nyog them nyiaj.
4. Cosine Compensation﹝CosineCompensation﹞
Raws li peb txhua tus paub, qhov ci ntsa iab ntawm qhov illuminated nto yog cuam tshuam nrog qhov xwm txheej ntawm lub teeb ci. Ib yam li ntawd, thaum ntsuas nrog lub teeb ntsuas, qhov xwm txheej ntawm lub ntsuas ntsuas (Sensor) thiab lub teeb pom kev zoo yuav cuam tshuam rau kev nyeem ntawv tus nqi ntawm lub teeb ntsuas. Yog li ntawd, seb lub ntsuas hluav taws xob zoo puas muaj lub luag haujlwm ntawm cosine them nyiaj tsis tuaj yeem tsis quav ntsej.
Classification ntawm illuminance meters
1. Visual illuminance meter: Nws tsis yooj yim rau siv, muaj qhov tseeb tsawg thiab tsis tshua siv.
2. Photoelectric illuminance meter: Selenium photovoltaic illuminance meter thiab silicon photovoltaic illuminance meter yog feem ntau siv.
Kev siv lub teeb meter
1. Daim ntawv thov nyob rau hauv cov chaw pej xeem
Txhawm rau kom ntseeg tau tias tib neeg tuaj yeem nyob hauv lub teeb pom kev zoo, peb lub teb chaws tau tsim cov qauv kev noj qab haus huv rau sab hauv tsev (nrog rau cov chaw pej xeem) illumination, thiab siv cov ntsuas hluav taws xob los ntsuas cov teeb pom kev hauv ntau qhov chaw.
2. Kev lag luam teeb pom kev zoo, kev lag luam yees duab, theem teeb pom kev zoo, thiab lwm yam.
Illuminance meters tau ua tiav siv ntau txoj haujlwm, xws li kev lag luam teeb pom kev zoo, kev lag luam yees duab, theem teeb pom kev zoo, thiab lwm yam. Cov qauv sib txawv ntawm cov illuminance meters tuaj yeem ua tau raws li kev ntsuas sib txawv.
3. Factory ntau lawm kab thov
Hauv cov chaw tsim khoom, cov teeb pom kev zoo ntawm cov kab ntau lawm yog qhov nruj heev. Kev ua haujlwm tsis tu ncua yuav ua rau pom kev qaug zog thiab txo qis kev ua haujlwm zoo. Feem ntau qhov yuav tsum tau illumination ntau dua los yog sib npaug rau 1000Lx. Rau qhov chaw uas muaj qhov xav tau teeb pom kev zoo, koj tuaj yeem xaiv qhov loj-nruab qhov ntsuas ntsuas nrog qhov loj heev. Muaj peev xwm tuav lub teeb pom kev zoo ntsuas lub teeb.
4. Illuminance meters tau siv dav, suav nrog cov ntawv thov hauv peb lub neej niaj hnub, xws li cov chaw tsim khoom, tsev khaws khoom, tsev kawm ntawv, chaw ua haujlwm, tsev, kev tsim teeb pom kev zoo, chav kuaj, thiab lwm yam.
