UV teeb yog ib hom hluav taws xob hluav taws xob hluav taws xob nrog lub wavelength thaj tsam ntawm 10 thiab 400 nanometers, ua rau nws pom tsis tau ntawm tib neeg lub qhov muag. Nws yog feem ntau siv hauv cov chaw kuaj mob vim tias nws muaj peev xwm ua rau cov tshuaj tiv thaiv photochemical, ua kom tsis muaj menyuam, thiab kuaj cov tshuaj fluorescent.
Lub hauv paus ntawm UV teeb nyob rau hauv qhov chaw kuaj mob tuaj yeem sib txawv nyob ntawm daim ntawv thov tshwj xeeb. Qee qhov chaw feem ntau suav nrog mercury vapor teeb, xenon teeb, thiab LED teeb.
Mercury vapor teeb tsim UV teeb los ntawm kev tsim hluav taws xob tawm hauv kev sib xyaw ntawm mercury vapor thiab argon gas. Cov teeb no emit ib tug dav spectrum ntawm wavelengths, nrog rau UV hluav taws xob. Lawv feem ntau siv rau hauv kev tshawb fawb thiab kev lag luam, xws li hauv kev tsim cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob.
Xenon teeb, ntawm qhov tod tes, tsim UV teeb los ntawm kev tso tawm hluav taws xob siab los ntawm cov roj sib xyaw uas muaj xenon. Qhov no ua rau lub emission ntawm ib tug dav spectrum ntawm UV wavelengths, xws li UVA, UVB, thiab UVC. Cov teeb no feem ntau yog siv rau hauv analytical chemistry thiab cov ntaub ntawv tshawb fawb txog kev tshawb fawb vim lawv lub peev xwm los tsim cov hluav taws xob siv hluav taws xob ntau dhau ntawm ntau lub wavelengths.
LED teeb yog qhov niaj hnub ntau dua ntawm UV teeb, thiab lawv tau dhau los ua neeg nyiam nyob rau xyoo tas los no. Cov teeb no siv cov khoom siv hluav taws xob kom tso tawm UV hluav taws xob ntawm cov wavelengths tshwj xeeb, ua rau lawv zoo tagnrho rau cov phiaj xwm kev siv xws li UV kho, dej huv, thiab tshuaj ntsuam xyuas.
Ntxiv nrog rau cov peev txheej ntawm UV teeb, kuj tseem muaj cov teeb tshwj xeeb uas tso tawm tsuas yog cov wavelengths ntawm UV hluav taws xob. Piv txwv li, UVA teeb tawm hluav taws xob hauv thaj tsam ntawm 320-400 nm, thaum UVB teeb tawm hluav taws xob nyob rau hauv thaj tsam ntawm 280-320 nm. UVC teeb, ntawm qhov tod tes, tso tawm hluav taws xob hauv thaj tsam ntawm 100-280 nm, ua rau lawv muaj txiaj ntsig tshwj xeeb ntawm kev ua kom tsis muaj menyuam thiab ib puag ncig.
Zuag qhia tag nrho, lub hauv paus ntawm UV teeb nyob rau hauv lub chaw soj nstuam yuav nyob ntawm seb qhov kev thov tshwj xeeb thiab cov txiaj ntsig xav tau. Thaum cov mercury vapor thiab xenon teeb tseem siv dav hauv ntau qhov kev tshawb fawb thiab kev lag luam, LED teeb tau dhau los ua neeg nyiam rau lawv qhov kev ua tau zoo thiab kev ua haujlwm hauv cov ntawv thov. Txawm li cas los xij, txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tau saib xyuas UV hluav taws xob thiab ua raws li cov txheej txheem kev nyab xeeb tsim nyog txhua lub sijhawm.
