Daim ntawv thov ntawm cov iav hloov tau yooj yim yog qhov tshwm sim ntau hauv ob lub xyoo dhau los. Qee tus neeg siv tau swm rau lub siab pob tshab ntawm ultra-dawb iav thiab tom qab ntawd saib ntawm lub khob ntse. Kuv ib txwm hnov tias daim iav ntse yuav mob ntau dua. Kuv cia siab tias lub khob ntom ntom kuj tuaj yeem ua pob tshab. Cov. Dimming iav tau tsim rau tam sim no, thev naus laus zis tau loj hlob thiab tau tsim ua ntau hom. Raws li kev txhim kho yav tom ntej, cov tuam ntxhab thiab cov neeg siv tau muaj cov kev coj ua: kev nce qib ntau dua.
Transmittance yog qhov tseem ceeb tshaj plaws los ntsuas qhov ntsuas ntawm lub ntsej muag zoo. Thaum dimming iav thawj zaug nkag mus rau Tuam Tshoj xyoo 2002, nws kis tau tsuas yog li 70%. Niaj hnub no, tom qab ntau tshaj li kaum xyoo, kev sib kis tau mus txog 80%, thiab txawm tias ob peb lub tuam txhab muaj peev xwm ua tau ib qho zoo kawg nkaus 85%. Vim ntau yam txheej xwm, qhov nce ntawm transmittance tau ntsib ib qho kev txhaws.
Qhov xa tawm ntawm lub khob dimming yog cuam tshuam los ntawm peb ntu ntawm cov yeeb yaj kiab uas dim, zaj duab xis thiab zaj duab xis iav qub. Qhov kev txhim kho ntawm cov transmittance yog qhov tseem ceeb vim yog kev txhim kho ntawm cov khoom sib hloov ntawm cov yeeb yaj kiab sib txawv, yog li cov chaw tsim khoom ntawm cov yeeb yaj kiab uas tsis sib haum yog tsis nkees. Tsim ib zaj duab xis-kis ua haujlwm nrog kev sib kis tau zoo dua.
Tsom iav iav muaj ob sab, uas yog permeability thiab tiv thaiv, siv rau cov ntsiab lus sib txawv hauv cov teb sib txawv. Piv txwv li, chaw ua haujlwm daim ntawv tsom rau permeability, thaum ntawv thov chav dej tsom ntau dua rau vaj tse. Qhov no tau hais txog ib qho parameter - taws kub nnyiab ya, taws kub nnyiab ya thiab transmittance yog txheeb ze.
Peb cia siab tias thaum lub khob iav pob tshab, lub pob tshab yog qhov siab thiab tus neeg taws kub nawv qis, yog li cov pob tshab yog qhov zoo tshaj plaws; nws kuj yog qhov tsim nyog tias cov taws kub nnyiab siab thaum opaque, kom cov cuab yeej thaiv cov cuab yeej zoo dua. Tab sis qee zaum nws tsis zoo rau ob qho tib si, vim tias thaum tsis zoo, nws nyob ze rau (tsis pub dhau 5cm) nws tuaj yeem pom tus duab ntxoov ntxoo. Tam sim no, cov taws kub nnyiab ntawm lub khob iav ntom nti feem ntau yog li 8%, cov neeg lag luam thev naus laus zis tuaj yeem ua tiav qis dua 3%, thiab cov opaque ntau dua 95%. Muaj tsawg chav rau kev txhim kho nyob rau hauv lawg.
Voltage kuj tseem yog qhov tseem ceeb cuam tshuam rau qhov kev sib kis. Qhov tsim nyog tsav voltage tsim nyog kom ua tiav qhov zoo ntawm qhov ntsuas ntawm lub khob dimming.
Ob peb lub xyoo dhau los, cov hluav taws xob txuas hluav taws xob hauv lub tebchaws yog 65 ~ 70V, uas tsis tshua muaj kev nyab xeeb, tab sis nws dhau lawm thiab qhov sib kis tsis zoo. Yog li no, txhua lub tuam txhab ua raws txoj ntsiab cai ntawm "txo siab tsis txo" "tsis pom zoo". Txog xyoo no, cov kev tshwm sim ntawm cov khoom tshiab tau txo qhov voltage mus rau 60V, ntxiv rau 48V, 36V, 24V, thiab lwm yam, tab sis siv qis dua. Qhov hluav taws xob qis yog kev nyab xeeb thiab lub zog ntau dua, tab sis tus nqi kim dua.
Txij li cov iav dimming yuav tsum tau ua kom muaj zog kom ua pob tshab, ntau tus neeg txhawj xeeb txog qhov teeb meem kev siv hluav taws xob hauv daim ntawv thov ntau thaj chaw, thiab yog li ntawd nws yog qhov tsim nyog kom muaj cov iav trans-dimming uas "energized thiab av, thiab lub zog yog pob tshab ". Txawm li cas los xij, xws li iav thev naus laus zis yog tsis paub tab thiab kim, yog li nws yog tus qauv tshiab hauv kev txhim kho ntawm cov iav dimming.
Dimming iav cov khoom lag luam tau ntsib cov theem ntawm "txij li zoo mus rau qhov zoo", thiab yuav muaj ntau hom khoom zoo tshaj plaws nyob rau hauv kev ua lag luam hauv ob peb xyoos tom ntej no.
