Vim li cas thiaj siv cov hlau muaj txiaj ntsig los ntsuas qhov ntsuas kub hauv cov ntawv thov kub?

Nyob rau hauv ib puag ncig kub heev, kev xaiv cov khoom rau qhov ntsuas kub yog qhov tseem ceeb heev. Cov hlau muaj txiaj ntsig muab ntau lub tsev uas ua rau lawv tsim nyog rau cov pob khoom zoo li no.
Thermocouples feem ntau yog siv los ntsuas qhov kub thiab txias hauv ntau qhov chaw kub. Cov hlau muaj txiaj ntsig yuav yog cov khoom ntxiv rau cov thermocouples hauv cov xwm txheej ntawd. Platinum thiab rhodium, piv txwv li, feem ntau yog siv cov khoom muaj txiaj ntsig zoo hauv cov thermocouples ntau dhau. Cov hlau no muaj cov ntsiab lus melting ntau dhau, uas tso cai rau lawv los tiv thaiv qhov kub thiab txias ntau dhau nrog tawm melting lossis deforming. Qhov kev sib npaug no yog qhov tseem ceeb rau qhov tseeb qhov ntsuas kub hauv qhov kev tawm tsam uas muaj qhov kub thiab txias heev, ua ke nrog rau hauv cov khoom siv hluav taws xob lossis cov khoom siv dav hlau.
Lwm qhov txiaj ntsig ntawm cov khoom muaj nqis hlau yog lawv cov kev tiv thaiv oxidation thiab corrosion. Ntawm qhov kub thiab txias, ntau yam khoom muaj kev cuam tshuam rau oxidation thiab degradation, uas tuaj yeem cuam tshuam rau qhov tseeb thiab kev ntseeg siab ntawm kev ntsuas kub. Cov hlau muaj txiaj ntsig, txawm li cas los xij, zoo nkauj inert thiab tuaj yeem ntsib oxidation thiab corrosion, ua kom cov nyeem tsis tu ncua thiab raug raws sijhawm.
Cov hlau zoo nkauj kuj tseem muaj cov khoom siv hluav taws xob tsim nyog. Hauv cov thermocouples, hluav taws xob conductivity ntawm cov khoom yog qhov tseem ceeb rau kev tsim hluav taws xob qhov no yog proportional rau qhov kub qhov sib txawv. High hluav taws xob conductivity tso cai rau ua tej yam kom raug thiab cia siab rau qhov ntsuas kub.
Tsis tas li ntawd, cov khoom muaj nqis hlau tuaj yeem muab kev sib npaug ntau dua thiab rov ua dua ntawm kev ntsuas. Lawv lub cev thiab tshuaj lom neeg lub tsev tseem ua tau zoo sib xws nyob rau ntau qhov kub thiab txias, uas ua rau lawv tsim nyog rau cov pob khoom uas yog qhov ntsuas kub tsis tu ncua yog qhov tseem ceeb.
Kev siv cov khoom muaj nqis hlau nyob rau hauv qhov kub thiab txias ntsuas cov khoom siv ntxiv kuj tseem suav nrog tus nqi zoo dua piv rau cov khoom sib txawv. Txawm li cas los xij, cov koob hmoov uas lawv muab rau hauv cov lus ntawm qhov tseeb, qhov sib npaug, thiab kev ruaj khov feem ntau tshaj qhov kev txhawj xeeb ntawm cov nqi hauv cov pob khoom uas qhov ntsuas kub ntau dhau yog qhov tseem ceeb.