Lub hauv paus ntsiab lus ntawm far infrared cua sov ntawm coj yug me nyuam teeb
Lub wavelength ntawm lub teeb infrared yog {{0}}.75μm-1000μm, uas nyob nruab nrab ntawm electromagnetic nthwv dej thiab pom lub teeb, thiab kis tawm hauv daim duab hluav taws xob. Nyob rau hauv kev lag luam, infrared rays nrog wavelengths ntawm 0.75 μm mus rau 1.5 μm yog hu ua ze infrared rays, thiab infrared rays nrog wavelengths ntawm 1.5 μm mus rau 1 000 μm yog hu ua far infrared rays. Far-infrared rays, zoo li pom lub teeb, ultraviolet rays, thiab X-rays, yog tag nrho cov electromagnetic nthwv dej, thiab lawv mus rau tib ceev, mus txog 300,000 kilometers ib ob. Lub luag haujlwm tseem ceeb ntawm infrared rays yog thermal nyhuv.
Kev nqus spectrum ntawm feem ntau cov organic teeb meem thiab dej yog nyob rau hauv thaj tsam ntawm 2.5μm ~ 25μm. Thaum lub wavelength ntawm cov hluav taws xob qhov chaw yog tib yam li cov khoom uas tau rhuab, cov khoom yog nquag nqus infrared rays. Lub wavelengths ntawm far-infrared rays poob rau hauv pawg no. Thaum tshav kub kub qhov kub nyob rau hauv thaj tsam ntawm 200 degree ~ 727 degree, 80 feem pua ntawm tag nrho cov radiant zog yuav converge nyob rau hauv ntau ntawm 2.5μm ~ 15μm. 15μm siab dua, lub zog yog lwm 15 feem pua (200t) mus rau 4 feem pua (600 degree C), thiab lub zog radiant saum 250 degree C yog tsawg dua. Nws tuaj yeem pom tias feem ntau ntawm lub zog ntawm cov hluav taws xob nyob deb infrared yog yooj yim absorbed los ntawm cov teeb meem.
Tom qab cov molecules ntawm cov khoom nqus infrared lub zog, lub zog ntawm photon tuaj yeem hloov pauv tag nrho rau hauv kev vibration ntawm lub molecule, uas yog, lub zog tig; nws kuj tuaj yeem hloov lub zog hloov ntawm cov molecule. Tsis tas li ntawd, qhov kev vibration spectrum muaj cov txiaj ntsig ntawm kev nthuav dav ntawm kev co thiab kev sib hloov, uas tuaj yeem nthuav dav lub amplitude nrog rau qhov sib npaug ntawm qhov nruab nrab, thiab ua kom muaj kev vibration sab hauv. Vim tias qhov kev ua ntawm electrons thiab kev co ntawm cov molecules yog nyob rau hauv high speeds, qhov kev ua no tas li ua rau lub vibrations ntawm lattices thiab bonds sib tsoo. Qhov kev hloov ntawm lub xeev kev ua ub no zoo li ob yam khoom txav nrawm nrawm nrawm thiab ua kom sov, yog li cov cua kub ceev ceev. Nyob rau tib lub sijhawm, thaum cov hluav taws xob hluav taws xob infrared heats ib yam khoom, nws yog nyob ntawm qhov chaw uas cov hluav taws xob infrared tuaj yeem nkag mus, thiab nws qhov kub thiab txias feem ntau siab dua nws cov tsos. Piv txwv li, rau pob kws pob kws tom qab hluav taws xob infrared, qhov ntsuas kub sab hauv yog ntsuas los ntawm 5 degree -10 degree siab dua qhov kub sab nraud. Yog li ntawd, cov khoom rhuab los ntawm infrared hluav taws xob thaum lub sij hawm lub cev qhuav dej thiab ziab yog nyob rau hauv lub simultaneous kev txiav txim ntawm qhov kub thiab txias gradient thiab cov av noo gradient ntawm sab hauv siab thiab sab hauv qis, thiab cov dej nyob rau hauv sab hauv yog tsis tu ncua hloov tawm thiab diffused thiab evaporated mus cuag lub hom phiaj. ntawm ceev kom qhuav.
Hauv kev lag luam, cov cua kub nyob deb infrared muaj ntau qhov zoo piv nrog cov cua kub cua sov thiab ziab: lub sijhawm ci tuaj yeem ua kom luv luv; Kev siv hluav taws xob tuaj yeem raug tshem tawm mus rau 1/2 ~ 1/3; nws kuj tuaj yeem txuag tau qhov chaw zoo heev. Tsis tas li ntawd, daim ntawv thov yog yooj yim, tus nqi qis, kev tswj qhov kub thiab txias yog qhov yooj yim, kev teeb tsa yooj yim, kev nqis peev me me, thiab kev tsim khoom yooj yim.
