Kev siv thiab hom illuminance meters
Illuminance meter raws li cov khoom siv hluav taws xob hloov pauv kom paub qhov txawv ntawm lub ntsiab silicon (selenium) photocell illuminance meter thiab photoelectric tube illuminance meter. Nws tus nqi illuminance tuaj yeem qhia los ntawm cov duab digital lossis tus taw tes. Txawm hais tias hom teeb pom kev zoo li cas, yog los ntawm kev sojntsuam photometric, ntsuas lossis hloov kab thiab tus naj npawb ntawm meters thiab lwm yam khoom.
Cov yam ntxwv tseem ceeb ntawm lub ntsuas hluav taws xob teeb pom kev zoo thiab cov lus qhia ntau ntawm qhov yuam kev
1. Spectral teb ntawm tus ntes nyob rau hauv lub wavelength ntawm lub monochromatic hluav taws xob irradiation uas tsim los ntawm photocurrent los yog voltage tso zis nqi thiab cov monochromatic hluav taws xob flux ratio, hu ua spectral teb ntawm lub detector. Qhia raws li S. Cov lus qhia yog: lub wavelength ntawm lub spectral lub luag hauj lwm thiab cov ntaub ntawv wavelength ntawm lub spectral responsivity piv, hu ua tus txheeb ze spectral responsivity. Denoted los ntawm S: qhov kev hloov nyob rau hauv lub teb nrog wavelength los ntawm ...
2.Kev siv lub ntsuas hluav taws xob
① Qhib lub hwj huam mov.
② Qhib lub hau ntawm lub teeb ntes thiab tso lub teeb ntes kab rov tav rau hauv txoj haujlwm ntsuas.
③ Xaiv lub ntsuas ntsuas tsim nyog.
Yog tias sab laug kawg ntawm cov zaub tsuas pom "1", uas yog, lub teeb pom kev ntau dhau, koj yuav tsum nias qhov yuam sij (⑧ qhov tseem ceeb), kho lub sijhawm ntsuas.
④ Lub illuminance meter pib ua hauj lwm thiab qhia cov illuminance tus nqi ntawm cov zaub.
⑤ Cov ntaub ntawv pom ntawm cov zaub hloov tas li, thaum cov ntaub ntawv tso saib ruaj khov dua, nias lub khawm HOLD (⑧ tus yuam sij) txhawm rau xauv cov ntaub ntawv.
⑥ Nyeem thiab sau cov txiaj ntsig pom nyob rau hauv cov ntawv nyeem. Tus nqi pom zoo yog sib npaug rau cov khoom ntawm tus lej tso tawm thiab qhov ntau tus nqi hauv tus nyeem ntawv.
Piv txwv li: lub vijtsam qhia 500, lub kaum sab xis ntawm lub xeev cov zaub yog "× 2000", qhov ntsuas qhov ntsuas qhov pom ntawm 1,000,000lx, uas yog (500 × 2000).
⑦ Nias lub ntsuas phoo dua kom thim qhov kev nyeem tus nqi ntsuas phoo.
⑧ Txhua qhov kev soj ntsuam, peb nyeem sib law liag thiab sau tseg.
⑨ Tom qab txhua qhov kev ntsuas tiav, nias lub hwj huam hloov khawm kom txiav tawm lub hwj chim mov.
⑩ Npog lub hau ntawm lub teeb pom kev thiab muab nws rov qab rau hauv lub thawv.
