high-temperature imaging tus pas ntsuas kub / high-temperature thermographic koob yees duab
Kev ntsuas kub yog qhov tseem ceeb rau ntau cov txheej txheem hauv kev lag luam hlau thiab hlau. Thermocouples feem ntau yog siv rau kev ua haujlwm feem ntau. Txawm li cas los xij, kev ntsuas kev sib cuag tsis tuaj yeem ua tsis tau nyob rau hauv qee qhov xwm txheej, vim yog txav cov khoom siv hlau lossis qhov chaw hnyav uas txwv tsis pub siv cov tshuaj tiv thaiv. Rau cov haujlwm tshwj xeeb zoo li no, cov ntsuas kub ntsuas kub ntsuas kub muab cov txiaj ntsig zoo los ntawm kev ntsuas qhov ntsuas kub ntawm cov duab.
Cov duab ntev ntev ua ke nrog kev ntsuas qhov ntsuas kub tsis sib cuag yog qhov zoo rau ntau cov txheej txheem steel, xws li cua sov rauv thiab dov mills. Los ntawm kev sib xyaw ua ke video duab nrog kev ntsuas kub infrared, cov ntsuas kub ntsuas kub ntsuas kub ua haujlwm zoo tshaj plaws los txhim kho kev soj ntsuam thiab ntsuas qhov ntsuas kub. Qhov kev sib xyaw ua ke no tsim cov kev xaiv tshiab rau steel mills uas tsis tau siv yav tas los saib xyuas lub koob yees duab, thiab ua kom yooj yim rau kev tu lub cub tawg. Kab lus no tsom mus rau qhov muaj peev xwm siv cov xwm txheej ntawm cov ntsuas kub ntsuas kub hauv cov nroj tsuag steel, thiab piav qhia txog kev ntsuas kub rau cov khoom thiab cov hlau molten.
Kev ntsuas kub hauv kev lag luam hlau thiab hlau
Feem ntau, infrared ntsuas kub ntawm steel yog nyuaj vim nws tsis tshua muaj emissivity. Emissivity yog ib yam khoom muaj txiaj ntsig, uas ntsuas qhov ntau npaum li cas ntawm cov hluav taws xob infrared emissions los ntawm qhov chaw nyob rau hauv kev sib piv nrog ib tug zoo tagnrho blackbody - ib tug zoo meej radiator nrog ib tug emissivity ntawm 1. Ib tug ntau dua emissivity tus nqi txhais tau tias ntau radiant zog mus txog lub detector. Hauv paus, qhov siab dua qhov emissivity, qhov yooj yim dua thiab raug qhov ntsuas kub ntawm qhov chaw.
Rau cov khoom steel, emissivity sib txawv nrog qhov kub thiab txias, qhov chaw nyob thiab tshuaj muaj pes tsawg leeg. Cov xwm txheej saum npoo yog qhov tseem ceeb cuam tshuam rau emissivity. Piv txwv li, tsis-oxidized stainless hlau hauv kev tsim khoom muaj qhov emissivity ntawm kwv yees li 0.4. Rau qhov hnyav oxidized thiab tsaus nti, tus nqi nce mus rau 0.8, thaum polished ci ntsa iab muaj qhov tsis zoo ntawm ib puag ncig 0.2.
Cov ntsuas kub ntsuas kub ntsuas kub tso cai rau kev ywj pheej thiab hloov pauv hloov pauv hloov pauv rau txhua qhov chaw xaiv tus cursor ntawm qhov screen. Yog li ntawd, kev nyeem ntawv zoo thiab ruaj khov tuaj yeem tau txais ntev npaum li lub cev tsis muaj zog thiab cov yam ntxwv ntawm cov txheej txheem raw khoom tau txhais kom meej.
