Hom kev koom tes:
Kev pom qhov muag pom kev pom: tsis yooj yim siv, tsis raug, tsis tshua siv
Photoelectric illuminance meter: feem ntau siv selenium photovoltaic illuminance meter thiab silicon photovoltaic illuminance meter
Kev sib xyaw thiab siv cov kev xav tau ntawm photocell illuminometer:
【Composition】: Microammeter, hloov pob qhov rooj, xoom hloov kho, davhlau ya nyob twg, photocell, V (λ) kho lim, thiab lwm yam.
Feem ntau siv selenium (Se) photocell lossis silicon (Si) photocell illuminometer, tseem hu ua lux meter
[Yuav tsum tau siv]: Lub illuminometer sojntsuam yog ua los ntawm iav, uas yog ib qho yooj yim rau tawg thiab puas, thiab cov nyhuv waterproof yog heev tsis zoo thaum siv.
① Photocells siv selenium (Se) photocells lossis silicon (Si) photocells nrog zoo linearity; lawv muaj peev xwm tswj tau zoo stability tom qab ua hauj lwm mus sij hawm ntev, thiab muaj siab rhiab heev; Thaum E yog siab, siv siab nyob rau hauv lub photocells, uas muaj tsawg rhiab heev thiab zoo linearity, tsis yooj yim puas los ntawm muaj zog lub teeb raug.
② Muaj V (λ) kho lim sab hauv, uas tsim nyog rau lub teeb pom kev sib txawv ntawm cov xim kub kub, thiab qhov yuam kev me me
③ Lub kaum sab xis cosine compensator (opal dawb iav los yog yas dawb) yog ntxiv rau pem hauv ntej ntawm lub photocell vim hais tias thaum lub teeb meem lub kaum sab xis loj, lub photocell deviates los ntawm txoj cai cosine.
④ Lub illuminometer yuav tsum ua hauj lwm nyob rau hauv chav tsev kub los yog ze rau chav tsev kub (lub drift ntawm lub photocell hloov nrog qhov kev hloov ntawm kub).
