Liab / xiav LED kev loj hlob teeb feem ntau hu ua nqaim-band spectroscopy vim lawv emit wavelengths nyob rau hauv ib tug me me nqaim-band range.
LED loj hlob teeb uas muaj peev xwm emit "dawb" lub teeb feem ntau hu ua "broad spectrum" los yog "tag nrho spectrum" vim hais tias lawv muaj tag nrho cov wide-band spectrum, uas zoo ib yam li lub hnub uas qhia "dawb" lub teeb, tab sis qhov tseeb muaj. tsis muaj tseeb Dawb lub teeb wavelength.
Nws yuav tsum tau muab sau tseg tias hauv paus tag nrho cov "dawb" LEDs yog xiav lub teeb vim hais tias lawv yog coated nrog ib tug txheej ntawm phosphor uas converts xiav lub teeb rau ntev wavelengths.Phosphors nqus lub teeb xiav thiab rov tso tawm qee qhov lossis feem ntau ntawm cov photons rau hauv lub teeb ntsuab thiab liab.Txawm li cas los xij, cov txheej no txo cov kev ua haujlwm ntawm photon hloov mus rau photosynthetic zoo hluav taws xob (PAR) siv tau lub teeb, tab sis nyob rau hauv cov ntaub ntawv ntawm ib qho teeb pom kev zoo, nws yuav pab muab qhov chaw ua haujlwm zoo dua thiab txiav txim siab qhov zoo ntawm spectral.
Nyob rau hauv luv luv, kom paub qhov ua tau zoo ntawm lub teeb, koj yuav tsum tau faib nws cov photosynthetic photon flux (PPF) los ntawm cov input wattage, thiab lub zog efficiency tus nqi tau yog qhia raws li "μmol / J".Qhov loj dua tus nqi, lub teeb yuav hloov hluav taws xob hluav taws xob rau hauv PAR photons, qhov ua tau zoo dua yuav yog.
1.Red/Blue LED Loj hlob teeb
Ntau tus neeg feem ntau koom nrog "ntsuab / paj yeeb" LED loj hlob teeb nrog lub vaj teeb pom kev zoo.Lawv siv kev sib txawv ntawm cov xim liab thiab xiav LEDs, thiab lawv tau pom zoo tshwj xeeb rau cov neeg cog qoob loo uas tuaj yeem tau txais hnub ci.Txij li thaum photosynthesis peaks ntawm liab thiab xiav wavelengths, qhov kev sib xyaw ua ke ntawm spectra tsis yog tsuas yog qhov zoo tshaj plaws rau kev loj hlob ntawm cov nroj tsuag, tab sis kuj muaj zog tshaj plaws.
Los ntawm qhov kev xav no, yog tias tus neeg cog qoob loo tuaj yeem siv lub hnub ci, nws ua rau kev txiav txim siab los nqis peev feem ntau ntawm lub zog hauv lub wavelength uas yog qhov zoo tshaj plaws rau photosynthesis, thiaj li ua kom lub zog txuag tau ntau tshaj plaws.Liab / xiav LED teeb muaj zog ntau dua li "dawb" lossis tag nrho-spectrum LEDs, vim tias liab / xiav LED muaj qhov zoo tshaj plaws photon efficiency piv nrog rau lwm yam xim;uas yog, lawv tuaj yeem hloov lub zog hluav taws xob tshaj plaws rau hauv photons, yog li tus nqi Rau txhua duas, cov nroj tsuag tuaj yeem loj hlob ntxiv.
2.Broad-spectrum "dawb lub teeb" LED loj hlob teeb
Nyob rau hauv ib lub tsev cog khoom, lub hnub ci sab nraum zoov yuav offset lub teeb "liab los yog ntshav" tawm los ntawm lub teeb liab / xiav LED.Thaum lub teeb liab / xiav LED yog siv los ua ib lub teeb ci hauv tsev, qhov spectrum nws muab rau cov nroj tsuag yog txwv heev.Tsis tas li ntawd, kev ua haujlwm hauv lub teeb no tuaj yeem ua rau tsis xis nyob.Yog li ntawd, ntau tus neeg cog qoob loo sab hauv tsev tau hloov los ntawm nqaim-spectrum LEDs mus rau "dawb" puv-spectrum LED loj hlob teeb.
Vim lub zog thiab kho qhov muag poob hauv cov txheej txheem hloov dua siab tshiab, lub zog ua haujlwm ntawm broad-spectrum LEDs qis dua li ntawm cov liab / xiav LEDs.Txawm li cas los xij, yog tias siv los ua lub teeb pom kev zoo hauv kev ua liaj ua teb sab hauv tsev, broad-spectrum LED kev loj hlob teeb zoo dua li cov teeb liab / xiav LED vim tias lawv tuaj yeem tawm ntau lub wavelengths ntawm ntau theem ntawm cov qoob loo.
LED kev loj hlob teeb yuav tsum muab lub teeb pom kev zoo tshaj plaws rau cov nroj tsuag kev loj hlob thiab tawm los, thaum tseem tso cai rau kev yooj yim ntawm cov qoob loo thiab kev loj hlob mus, thiab tsim kom muaj ib qho chaw ua haujlwm zoo.
Post lub sij hawm: Mar-22-2021