Dab tsi yog qhov kev sib raug zoo ntawm kev pabcuam lub neej thiab kev tsis zoo ntawm thermocouples?
Tso lus
Hauv cov tswv yim thov, prefabricated thermocouples feem ntau muaj kev tiv thaiv cov raj thiab tsuas yog siv nrog cov hlau liab hauv tshwj xeeb. Yog li ntawd, feem ntau, lub neej ntawm lub raj tiv thaiv tiv thaiv kev txiav txim siab lub neej ntawm thermocouple. Nws yog ib qho tsim nyog los sau thiab khaws cov ntaub ntawv ntawm cov ntaub ntawv thov cov ntaub ntawv ntawm thermocouples dhau sijhawm ntev los muab cov txiaj ntsig raug. Thermocouples feem ntau siv cov ntsuas kub nyob hauv kev tshawb fawb thiab kev tsim khoom. Txawm hais tias lawv cov qauv yooj yim, ntsuas tsis tseem ceeb tuaj yeem tshwm sim yog tias tsis tau ua tiag thaum siv. Ntawm no, cov kev sib tham me me yuav tau ua rau kev xaiv cov ntsiab lus ntsuas kub rau cov lus nug yooj yim uas yuav tshwm sim thaum thov. Qhov laj thawj tseem ceeb rau kev ua yuam kev hauv thermocouple penetration qhov tob, lub sijhawm teb, thermal impiation, thiab thermal impedance yuav kuj pom. Kev ceev faj rau thermocouple heterogeneity, rwb thaiv tsev tsis kam, xaiv oxidation, K-Statored Thermocouple yuam yuav tseem yuav taw tes.
Kev ua rau muaj sia thiab lub neej ntawm thermocouples
Qhov thiaj li hu ua kev cuam tshuam ntawm thentomenon yog hais txog qhov tshwm sim ntawm kev laus thiab degeneration ntawm thermocouples tom qab siv. Thermocoter ua los ntawm cov hlau lossis alloys maj mam loj hlob rau lawv cov nplej sab hauv ntawm cov kub. Lub alloy muaj ib qho me me ntawm impurities, thiab nws orientation lossis cov duab tseem yuav hloov kho, thiab nws tseem yuav hloov kho rov qab los yog oxidizing roj hauv ib puag ncig ib puag ncig. Nrog rau cov kev hloov saum toj no, lub peev xwm thermoelectric siab ntawm thermocouple yuav kuj hloov pauv kev hloov pauv ntau. Yog li ntawd, qhov tsis zoo ntawm thermocoples yog kev tsis pom kev.
Qhov kev cuam tshuam ntawm thermocouples yog qhov ntau txheej txheem, uas yog sib txawv rau kev ntsuas thiab yuav sib txawv nrog hom, lub taub, huab cua, thiab lub sijhawm ntawm lub thermocouple. Qhov kev pabcuam lub neej ntawm lub thermocouple yog hais txog lub sijhawm thaum thermocouple detmerates dhau ntawm kev tso cai ua yuam kev, lossis txawm so thiab siv tsis tau.
