Vim li cas cov hlau tseem ceeb siv rau kev ntsuas kub hauv cov ntawv thov kub?

Hauv cov pob kub ntau dhau, qhov kub thiab txias yog qhov tseem ceeb kom paub tseeb tias kev tiv thaiv thiab kev ua haujlwm ntawm ntau cov txheej txheem. Cov hlau zoo nkauj ua si ua haujlwm loj hauv qhov kub thiab txias, tshwj xeeb hauv cov ntsiab lus ntawm thermocouples.
Thermocouples feem ntau siv rau qhov kub thiab txias vim tias lawv txoj kev ntseeg siab, qhov kub thiab txias ntau, thiab kev sib piv yooj yim. Lawv encompass tej steel hlau txuas ntawm ib kawg, tsim ib qho kev sib tshuam nyob rau hauv qhov ntsuas kub. Qhov hluav taws xob tsim tawm ntawm qhov kev sib tshuam no yog proportional rau qhov sib txawv ntawm qhov kub thiab txias ntawm qhov sib txuas thiab qhov taw qhia siv.
Ib qho ntawm cov laj thawj tseem ceeb ntawm cov hlau tseem ceeb yog siv rau hauv cov thermocouples ntau dhau yog lawv cov ntsiab lus melting ntau dhau. Cov hlau muaj txiaj ntsig suav nrog platinum thiab rhodium tuaj yeem ntsib qhov kub thiab txias ntau dhau nrog kev tawm melting lossis degrading. Qhov no ua rau lawv zoo tshaj plaws rau cov pob khoom uas qhov kub thiab txias tshaj qhov muaj peev xwm ntawm cov khoom sib txawv.
Lwm qhov nce ntawm cov hlau muaj txiaj ntsig hauv cov thermocouples yog lawv qhov ruaj khov. Thaum kub ntau dhau, ntau yam khoom tuaj yeem dhau los ntawm kev hloov kho tshuaj lom neeg lossis oxidation, uas yuav cuam tshuam rau lawv qhov tseeb. Cov hlau zoo nkauj, ntawm lwm sab tes, yog cov khoom zoo kawg thiab tiv thaiv oxidation thiab tshuaj lom neeg. Qhov no tau lees tias lub thermocouple txuas ntxiv nws qhov tseeb dhau lub sijhawm ntev.
Cov hlau muaj txiaj ntsig kuj tseem muaj qhov tseeb hluav taws xob conductivity. Qhov no yog qhov tseem ceeb rau cov thermocouples vim tias nws tso cai rau lub sijhawm ntsuab ntawm qhov hluav taws xob kos npe rau qhov ntsuas kub. High hluav taws xob conductivity guarantees qhov tseeb thiab kev cia siab rau qhov ntsuas kub.