Kev Siv Cov Khoom Siv Siab Purity Li Cas Txhim Kho Qhov Zoo ntawm Thermocouples?

Cov tshuaj purity siab ua kom lub tsev hluav taws xob tas li. Nyob rau hauv ib lub thermocouple, hluav taws xob conductivity thiab cov tsev sib txawv ntawm cov khoom ua si qhov tseem ceeb hauv kev txheeb xyuas qhov tseeb ntawm qhov ntsuas kub. Cov tshuaj purity siab muaj tsawg dua impurities thiab versions, uas ua rau cov yam ntxwv ntawm hluav taws xob ntau dua. Txoj kev no uas lub thermocouple yuav tsim ntau dua qhov kev cia siab thiab kev nyeem ntawv raug nyob rau ntau qhov ntau ntawm qhov kub thiab txias. Piv txwv li, cov hlau purity siab siv nyob rau hauv cov xov hlau thermocouple tuaj yeem muaj qhov ua tau zoo dua thiab muaj zog hluav taws xob, uas tso cai rau qhov ntsuas kub kom raug.
Lawv txo cov thermal gradients nyob rau hauv lub thermocouple. Cov impurities hauv cov khoom tuaj yeem ua rau cov qauv nyob ze hauv thermal conductivity, lub ntsiab rau thermal gradients nyob rau hauv lub thermocouple. Cov gradients no tuaj yeem cuam tshuam rau qhov tseeb ntawm qhov ntsuas qhov ntsuas kub nrog kev pab ntawm kev siv kev qhia yuam kev. Cov khoom siv purity siab muaj ntau dua cov thermal conductivity, txo qis thermal gradients thiab ua kom qhov ntsuas kub kom raug nyob rau lub sijhawm ua tiav ntawm lub thermocouple. Qhov no yog qhov tseem ceeb tshwj xeeb hauv cov pob khoom uas xav tau kev tswj hwm qhov kub thiab txias, nrog rau hauv kev tshawb fawb kho mob lossis kev lag luam.
Cov tshuaj purity siab tsis tshua muaj kev cuam tshuam rau cov tshuaj lom neeg. Hauv ob peb qhov chaw, cov thermocouples tuaj yeem raug muab tshem tawm rau cov tshuaj sib xyaw lossis cov khoom sib txawv uas tuaj yeem cuam tshuam nrog cov tshuaj thiab muaj kev cuam tshuam rau lawv qhov kev ua tau zoo. Cov tshuaj purity siab tsis tshua muaj peev xwm ua rau cov ntaub ntawv no, ua rau muaj feem cuam tshuam los yog hloov kho hauv tsev hluav taws xob. Qhov no tso cai rau khaws qhov tseeb thiab sib npaug ntawm cov thermocouple lub sijhawm. Piv txwv li, nyob rau hauv ib puag ncig corrosive, high-purity alloys tuaj yeem tiv taus tshuaj lom neeg thiab ua kom zoo ntsuas kub.
Lawv muaj ntau dua lub sij hawm ntev nyiaj tshuav. Cov impurities hauv cov khoom tuaj yeem hloov kho hauv cov tsev hluav taws xob thaum lub sijhawm, lub ntsiab kom glide hauv cov ntawv nyeem thermocouple. Cov khoom siv purity siab muaj zog ntau dua thiab tsis tshua muaj peev xwm txaus siab rau qhov kev hloov kho, ua rau muaj qhov tseeb ntawm lub sijhawm ntev dua. Qhov no yog qhov tseem ceeb rau cov pob khoom uas tsis nres thiab qhov ntsuas kub kom raug yog xav tau rau lub sijhawm ntev.