Infrared (IR) hluav taws xob yog ib hom hluav taws xob hluav taws xob uas tsis pom ntawm tib neeg lub qhov muag tab sis tuaj yeem hnov ​​​​zoo li cua sov.Nws muaj ntau yam kev siv xws li cov chaw taws teeb tswj, cov khoom siv thermal imaging, thiab txawm ua noj.Txawm li cas los xij, muaj qee lub sijhawm uas yuav tsum tau thaiv lossis txo qhov cuam tshuam ntawm cov hluav taws xob infrared, xws li hauv qee qhov kev sim kev tshawb fawb, txheej txheem kev lag luam, lossis txawm rau kev noj qab haus huv thiab kev nyab xeeb ntawm tus kheej.Hauv qhov no, cov ntaub ntawv tshwj xeeb tuaj yeem siv los ua kom txo qis lossis cuam tshuam tag nrho cov hluav taws xob infrared.

Ib qho khoom siv feem ntau siv los thaiv IR hluav taws xob yogIR thaiv cov khoom.Cov khoom no feem ntau yog tsim los ntawm kev sib xyaw ntawm cov ntaub ntawv xws li hlau oxides thiab tau tsim tshwj xeeb los nqus lossis cuam tshuam cov hluav taws xob infrared.Feem ntau cov hlau oxides pom nyob rau hauv infrared thaiv cov khoom muaj xws li zinc oxide, titanium oxide, thiab hlau oxide.Cov khoom no feem ntau sib xyaw nrog cov polymer lossis resin puag los tsim cov yeeb yaj kiab lossis txheej txheej uas tuaj yeem siv rau ntau qhov chaw.

Qhov ua tau zoo ntawm infrared blocking hais nyob ntawm ntau yam, nrog rau qhov loj thiab cov duab ntawm cov khoom, thiab lawv cov concentration hauv zaj duab xis lossis txheej.Feem ntau hais lus, cov khoom me me thiab cov ntsiab lus siab dua ua rau IR thaiv cov khoom zoo dua.Tsis tas li ntawd, kev xaiv ntawm cov hlau oxide kuj tuaj yeem cuam tshuam rau kev ua haujlwm ntawm infrared thaiv cov khoom.Piv txwv li, zinc oxide hais tau paub los thaiv qee qhov wavelengths ntawm infrared tawg, thaum titanium oxide zoo dua ntawm lwm cov wavelengths.

Ntxiv rau infrared blocking hais, muaj lwm yam ntaub ntawv uas yuav siv tau los thaiv los yog attenuate infrared tawg.Ib qho kev xaiv nrov yog siv cov ntaub ntawv uas muaj kev cuam tshuam siab, xws li hlau xws li txhuas lossis nyiaj.Cov hlau no muaj qhov ua kom pom qhov chaw siab, uas txhais tau tias lawv tuaj yeem cuam tshuam ntau ntawm cov hluav taws xob infrared rov qab mus rau nws qhov chaw.Qhov no zoo txo ​​cov nqi hluav taws xob infrared uas dhau los ntawm cov khoom siv.

Lwm txoj hauv kev los thaiv cov hluav taws xob infrared yog siv cov ntaub ntawv uas muaj cov khoom nqus tau zoo heev.Qee cov organic tebchaw, xws li polyethylene thiab qee hom iav, muaj cov coefficient siab nqus rau cov hluav taws xob infrared.Qhov no txhais tau hais tias lawv nqus feem ntau ntawm cov hluav taws xob infrared uas tuaj rau hauv kev sib cuag nrog lawv, tiv thaiv nws los ntawm kev hla.

Ntxiv nrog rau cov khoom siv tshwj xeeb, cov khoom siv thickness thiab ntom kuj cuam tshuam rau nws lub peev xwm los thaiv cov hluav taws xob infrared.Cov ntaub ntawv tuab thiab denser feem ntau muaj peev xwm thaiv tau infrared zoo dua vim tias muaj ntau ntawm infrared absorbing los yog xav txog cov khoom tam sim no.

Hauv cov ntsiab lus, muaj ntau yam khoom siv uas tuaj yeem siv los thaiv lossis txo qis infrared tawg.Infrared thaiv cov khoom, xws li cov uas ua los ntawm cov hlau oxides, tau dav siv vim lawv cov khoom tshwj xeeb uas tso cai rau lawv nqus lossis cuam tshuam cov hluav taws xob infrared.Txawm li cas los xij, lwm cov ntaub ntawv kuj tseem siv tau, xws li cov hlau uas muaj kev cuam tshuam siab lossis cov organic sib txuas nrog kev nqus coefficients siab.Cov yam ntxwv xws li qhov loj me, qhov concentration thiab hom hlau oxide siv ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm IR thaiv cov ntaub ntawv.Thickness thiab ntom kuj ua rau cov khoom muaj peev xwm los thaiv cov hluav taws xob infrared.Los ntawm kev xaiv cov ntaub ntawv raug thiab txiav txim siab txog cov xwm txheej no, kev thaiv IR zoo tuaj yeem ua tiav hauv ntau yam kev siv.