Video: SI unit ntawm kev siv hluav taws xob yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
SI unit of radiant siv yog cov watt rau steradian (W/sr), thaum ntawd spectralintensity hauv zaus yog qhov watt rau steradian rau hertz (W·sr−1· Hz −1) thiab qhov ntawd spectral siv hauv wavelength yog qhov watt rau steradian ib meter (W·sr−1· m−1) - feem ntau watt rau steradian rau nanometer (W·sr−1·nm−1).
Xav txog qhov no, txhais li cas los ntawm kev siv hluav taws xob?
Kev siv hluav taws xob . Cov kev siv hluav taws xob yog txhais raws li tus nqi ntawm emitted zog ntawm cheeb tsam cheeb tsam los ntawm chav tsev khoom lub kaum ntse ntse.
Ib yam li ntawd, ib qho ntawm cov hauv qab no yog lub tsev ntawm radiance? The SI unit ntawm radiance yog watt per steradianper square meter (W. sr. m−2), thaum lub spectral radiance nyob rau hauv zaus yog watt ib steradian ib square meter ib hertz (W.
Ua raws li qhov no hauv kev xav, dab tsi yog qhov radiant siv ntawm lub teeb?
Radiant siv tuaj yeem txhais tau tias yog tus nqi ntawm lub zog tawm los ntawm qhov chaw nyob rau hauv ib qho kev taw qhia ntawm ib chav tsev solidangle. Hauv cov ntsiab lus yooj yim, nws yog tus nqi ntawm cov kev siv zog ntawm electromagnetic tawg.
Wm2 ntsuas yog dab tsi?
Hauv radiometry, irradiance yog cov radiant flux (lub zog) tau txais los ntawm qhov chaw ntawm ib chav tsev. SI unit ofirradiance yog cov watt ib square meter ( W.
Pom zoo:
Dab tsi yog qhov txawv ntawm kev txuag hluav taws xob thiab lub hauv paus ntsiab lus ntawm kev txuag hluav taws xob?
Lub caloric txoj kev xav tau khaws cia tias cov cua sov tsis tuaj yeem tsim los yog rhuav tshem, qhov kev txuag ntawm lub zog ua rau lub hauv paus ntsiab lus tsis sib xws uas cov cua sov thiab cov tshuab ua haujlwm sib hloov tau
Dab tsi yog cov yam ntxwv ua siab hloov hluav taws xob hloov hluav taws xob LET muaj thaum piv nrog LET hluav taws xob tsawg?
Dab tsi yog cov yam ntxwv ua kom muaj hluav taws xob hloov hluav taws xob siab (LET) hluav taws xob muaj thaum piv nrog cov hluav taws xob qis-LET? Cov huab hwm coj ntau ntxiv, txo qhov nkag mus. (Vim lawv cov nqi hluav taws xob thiab cov khoom loj heev, lawv ua rau ntau ionizations hauv cov ntaub so ntswg, sai sai poob lub zog
Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms?
Tus nqi zoo attracts tus nqi tsis zoo thiab ua rau lwm tus nqi zoo. Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms? Cov nqi hluav taws xob yog cov cuab yeej ntawm tag nrho cov atoms
Dab tsi yog kauj ruam transformers siv hauv kev xa hluav taws xob hluav taws xob?
Cov hluav taws xob hluav taws xob tau xa mus rau qhov ntev ntawm qhov hluav taws xob siab. Yog li, cov kauj ruam nce transformers yog siv ntawm cov chaw nres tsheb fais fab kom nce qhov hluav taws xob ntawm lub zog whereas cov kauj ruam-down transformers yog siv los txo qhov voltage mus txog 220 V
Dab tsi yog qhov zoo ntawm kev siv lub tshuab hluav taws xob hloov hluav taws xob hauv atomic absorption?
Qhia qhov zoo thiab qhov tsis zoo ntawm lub cub tawg piv nrog kev siv cov nplaim taws hauv atomic absorption spectroscopy. Cov txiaj ntsig tseem ceeb yog ntau dua rhiab heev (concentration thiab tshwj xeeb tshaj yog loj). Lub ntsiab tsis zoo yog cov cuab yeej cuab tam ntau dua thiab cov nqi ntsuas