Ntaus tlocooobles: zoo tagnrho rau tsawg-kub thiab noo undermen

Nyob rau hauv lub ntiaj teb ntawm ntsuas cov ntsuas kub, ntaus th thermoocouples tau txua carved tawm ib tus kheej, tshwj xeeb tshaj yog nyob rau hauv cov chaw tsawg - thiab dej noo. Lawv cov cim tshwj xeeb thiab cov haujlwm ua rau lawv xaiv txoj kev xaiv tau rau ntau cov ntawv thov.

Ntaus tlocouples yog tsim ntawm tooj liab thiab constantan. Cov ntaub ntawv no muab cov khoom sib xyaw ua ke muab rau lawv cov chaw sib txawv uas zoo - haum rau cov xwm txheej tshwj xeeb. Ib qho ntawm thawj qhov zoo ntawm hom termocouples yog lawv cov kev ua tau zoo hauv cov chaw qis - qhov kub. Lawv tuaj yeem ntsuas qhov kub kom sov li -200 degree, ua rau lawv muaj kev cuam tshuam hauv cov ntawv thov cryogenic. Piv txwv li, hauv kev tshawb fawb txog kev kho mob, uas yog qhov chaw cia ntawm tsawg heev yog qhov tseem ceeb, ntaus t th thermorochouples tuaj yeem siv los soj ntsuam qhov kub ntawm cryogenic freezers. Qhov no ua kom pom tseeb tias cov qauv qauv, xws li cov qia hlwb lossis cov tshuaj tiv thaiv, yog khaws cia rau ntawm qhov ntsuas kub kom ua kom lawv muaj peev xwm thiab kev ua haujlwm zoo.

Lwm qhov zoo tshaj plaws yog lawv txoj kev tiv thaiv kom ya raws. Nyob rau hauv ib puag ncig huab cua, ntau qhov kub - ntsuas cov khoom siv tuaj yeem cuam tshuam los ntawm kev xeb, uas ua rau kev nyeem tsis raug lossis txawm tias ntaus ntawv tsis ua hauj lwm. Txawm li cas los xij, cov ntaub ntawv hauv hom t th thermocouples, tshwj xeeb yog lub constantan alloy, nthuav qhia zoo corrosion tsis kam. Qhov no ua rau lawv haum rau siv hauv kev siv uas noo noo yog tam sim no, xws li hauv cov chaw ua zaub mov nyob ze qhov chaw av noo muaj ntau. Hauv kev ua zaub mov ua khoom noj, piv txwv li, ntaus t th thermorochoples tuaj yeem siv los ntsuas qhov kub ntawm cov khoom noj txias, kom cov khoom noj kom muaj qhov tseeb kom tiv thaiv kev piam sij.

Qhov tseeb yog qhov tseem ceeb ntawm hom T Thermocouples. Lawv ua tib zoo ntsuas kom muab cov kev nyeem ntsuas kub hnyav hauv lawv cov haujlwm. Hauv cov txheej txheem kev siv uas yuav tsum tau daws qhov ntsuas kub kub, xws li hauv kev tsim cov khoom siv hluav taws xob, qhov tseeb ntawm hom t th thermocouples yog qhov tseem ceeb. Cov khoom siv no yuav rhiab rau qhov kev hloov pauv kub, thiab ntsuas qhov ntsuas kub tuaj yeem pab ua kom zoo thiab ua haujlwm ntawm cov khoom kawg.

Ntaus tlocouples tseem muaj lub sijhawm luv luv. Qhov no txhais tau tias lawv tuaj yeem ntes cov kev hloov pauv sai sai thiab muab - rau - hnub nyeem. Hauv kev tshawb fawb chaw tshawb fawb qhov kev sim no suav cov kev hloov kom sai, lub sijhawm sai no tso cai saib xyuas thiab kho qhov ntsuas kub thiab txias nyob rau hauv tiag tiag - lub sijhawm.

Txawm li cas los xij, zoo li txhua qhov thermocouples, ntaus t Thlourocouces muaj lawv cov kev txwv. Lawv tsis haum rau cov ntawv thov kub siab thiab qhov kub thiab txias tshaj plaws ib puag ncig 350 degree. Tsis tas li, lawv tuaj yeem cuam tshuam los ntawm kev cuam tshuam hluav taws xob hauv hluav taws xob hauv qee qhov chaw ib puag ncig, uas yuav xav tau kev tiv thaiv kom tsim nyog thaum lub sijhawm teeb tsa.