Video: Yuav ua li cas koj xam Lux rau Watts?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
Nws txhais tau tias lub zog hauv watts yog xam los ntawm kev muab qhov pom kev ci ci hauv ua lux los ntawm thaj tsam thaj tsam hauv square metres. Qhov txiaj ntsig tau muab faib los ntawm kev ua haujlwm zoo nyob hauv lumens ib watt.
Ua li no, pes tsawg Lux yog 100 watt lub teeb?
16 00 Nws
koj yuav xam cov qib lux li cas? Sib npaug cheeb tsam hauv square metres los ntawm ua lux , los yog cheeb tsam hauv square feet ntawm footcandles. ua haujlwm tawm pes tsawg qhov muag teev koj xav tau. Faib tus naj npawb ntawm lumens los ntawm tus naj npawb ntawm lumens xa los ntawm txhua lub teeb.
Ua qhov no hauv kev txiav txim siab, pes tsawg Lux yog 40 watt teeb?
40 Watt hauv Lumens
| Hom teeb | 200-300 lumens | 1000-1250 lumens |
|---|---|---|
| Teeb | 25-30 watts | 120 kwv |
| Halogen | 18-25 watts | 100 w tso |
| CFL | 5-6 Wg | 20 watt |
| LED | 2-4 watts | 10-13 teev |
Koj yuav hloov W m2 rau Lux li cas?
Tsis muaj qhov yooj yim hloov dua siab tshiab , nws nyob ntawm lub wavelength lossis xim ntawm lub teeb. Txawm li cas los xij, rau lub hnub muaj kwv yees hloov dua siab tshiab ntawm 0.0079 W / m2 ua ib Lux . Txhawm rau txuas tus lej ua piv txwv: yog tias peb nyeem 75, 000 Lux ntawm lub teeb sensor, peb hloov tias nyeem ntawv W / m2 xav raws li hauv qab no: 75, 000 × 0.0079 = 590 W / m2 xav.
Pom zoo:
Koj xam xam lux thiab lumens li cas?
1 lx = 1 lm/mm2. 1 Lumen ib Square Meter: Lumen ib square meter sib npaug rau Lux (SI unit). Kev ntsuas tus naj npawb ntawm Lumens poob ntawm thaj tsam ntawm ib square meter, lub ntsiab lus ntawm Lux
Koj xam xam qhov nruab nrab qhov pom kev li cas?
Qhov nruab nrab qhov ci ntsa iab a = ntev ntawm chav nyob hauv meters; b = dav ntawm cheeb tsam hauv meters; h = nrug deb ntawm qhov nruab nrab ntawm cov teeb pom kev zoo thiab lub dav hlau uas koj yuav tsum ntsuas lub teeb pom kev zoo (piv txwv li qhov siab ntawm cov teeb pom kev zoo 2.80 m, qhov chaw ua haujlwm ntawm qhov siab 0.8 m, h = 2.80 txog 0.8 = 2)
Yuav ua li cas lux qib xam rau txoj kev teeb pom kev zoo?
Qhov Nruab Nrab Lux Qib ntawm Txoj Kev Teeb yog ntsuas los ntawm 9 point method. Ua ob qhov sib npaug sib npaug nruab nrab ntawm ob txoj kev teeb pom kev. Peb muaj 3 ntsiab lus P1, P2 thiab P3 nyob rau hauv lub teeb ncej ces P4 & P7 yog cov ntsiab lus opposite ncej 1 los yog Point P3 tib yam muaj feem xyuam rau P6 thiab P9 rau ncej 2
Koj xam xam qhov chaw txav chaw nyob li cas?
Txhawm rau txiav txim siab qhov hloov chaw ntawm qhov chaw nres nkoj, peb tsuas yog muab thaj tsam hla ntu los ntawm qhov ntev ntawm qhov chaw nres nkoj (uas peb tau txiav txim siab ua 12 "hauv qhov piv txwv no.) Displaced Volume = 9.61625 X 12 = 115.395 cu.in
Koj xam xam pib lub zog ntawm lub cav li cas?
Raws li koj pom qhov sib npaug torque yog cov khoom ntawm lub zog thiab qhov kev ncua deb ntawm lub zog thiab qhov chaw ntawm kev sib hloov. Piv txwv li, yog tias koj xav tuav lub zog ua haujlwm ntawm qhov kawg ntawm rub, T = F x r