Yuav ua li cas kom ntseeg tau qhov tseeb ntawm qhov ntsuas kub ntawm qhov ntsuas kub tsis tshua muaj siab?

Nyob rau hauv lub ntiaj teb no ntawm kub tsis tshua muaj kub ib puag ncig, qhov tseeb qhov kub thiab txias yog ib qho nyuaj tab sis tseem ceeb ua hauj lwm. Duab cov kev tshawb fawb soj ntsuam mob siab rau nyeem cov phenomena cryogenic los yog ib qho kev sib tw tshawb nrhiav hauv cheeb tsam uas qhov kub thiab txias tuaj yeem poob mus rau zero kiag li. Hauv cov xwm txheej zoo li no, ua kom qhov tseeb ntawm kev nyeem ntawv kub yog qhov tseem ceeb rau kev kawm kho mob thiab kev siv thev naus laus zis.
Cov thermocouples tuaj yeem raug ntiav nyob rau hauv qhov kub tsis tshua muaj kub. Ib qho tseem ceeb kom paub tseeb tias qhov tseeb yog xaiv qhov zoo ntawm thermocouple. Tshwj xeeb cryogenic thermocouples yog tsim los ua haujlwm ntawm qhov kub thiab txias thiab muab kev sib npaug ntau dua thiab raug. Piv txwv li, cov ntaub ntawv zoo ntawm cov thermocouples crafted los ntawm cov tsis tshua muaj hlau los yog alloys tuaj yeem ntsib mus rau qhov kub tsis tshua muaj qhov tsis zoo uas tsis muaj kev puas tsuaj loj hauv kev ua haujlwm tag nrho.
Lwm qhov tseem ceeb tshaj plaws yog txoj cai rwb thaiv tsev. Ntawm qhov kub tsis tshua muaj siab, txhua qhov kev sov so tuaj yeem ua rau muaj qhov cuam tshuam rau qhov ntsuas kub. Insulating lub thermocouple thiab nws cov coj nrog cov khoom uas muaj thermal conductivity tsawg yog qhov tseem ceeb. Qhov no ua kom yooj yim kom txo tau qhov sov so los ntawm qhov chaw nyob ib puag ncig thiab ua kom cov ntawv nyeem kom raug. Piv txwv li, kev siv lub tshuab nqus tsev rwb thaiv tsev cables lossis cov khoom siv hluav taws xob sib txawv tuaj yeem txo qhov ua kom sov thiab txhim kho qhov tseeb.
Calibration yog qhov tseem ceeb rau qhov tseeb qhov ntsuas kub hauv qab qhov kub tsis tshua muaj siab. Tsis tu ncua calibration nyob rau hauv kev tawm tsam rau ib tug saib xyuas nyob rau hauv qis kub yog ib qho tseem ceeb kom paub tseeb tias lub thermocouple yog muab kev nyeem ntawv. Qhov no tej zaum yuav raug ua raws li kev siv tshwj xeeb calibration gadget thiab cov txheej txheem tsim los rau qhov kub thiab txias. Piv txwv li, lub calibration tubtub nrog ib tug raws nraim tswj uas tsis muaj dej kub yuav siv tau los calibrate lub thermocouple.
Kev txo cov suab nrov hluav taws xob kuj tseem ceeb heev. Nyob rau hauv ib puag ncig uas tsis muaj qhov kub thiab txias, lub suab nrov hluav taws xob tuaj yeem cuam tshuam nrog qhov ntsuas kub thiab ua rau kev nyeem ntawv yuam kev. Siv cov ntaub thaiv npog thiab cov tswv yim hauv av zoo tuaj yeem pab txo cov suab nrov hluav taws xob thiab txhim kho qhov tseeb ntawm qhov ntev. Tsis tas li ntawd, kos npe filtering thiab amplification qauv yuav siv tau los kho qhov kos npe-rau-suab nrov piv.
Ua tib zoo teeb tsa thiab tswj cov thermocouple yog qhov tseem ceeb. Lub thermocouple yuav tsum tau teeb tsa rau hauv ib qho uas txo qis kev nyuaj siab thiab cov neeg kho tshuab deformation, vim tias cov no tuaj yeem cuam tshuam rau nws qhov kev ua tau zoo tag nrho ntawm qhov kub thiab txias. Tsis tas li ntawd, txoj cai tswj hwm thiab chaw nres tsheb ntawm lub thermocouple thaum tam sim no tsis siv lawm tuaj yeem pab tuav nws qhov tseeb thiab siv tau ntev. Hauv kev xaus, ua kom qhov tseeb ntawm qhov ntsuas kub hauv qab qhov kub tsis tshua muaj qhov xwm txheej hu rau kev ceev faj xaiv cov thermocouples, txoj cai rwb thaiv tsev, zoo tib yam calibration, minimization ntawm hluav taws xob nrov, thiab ceev faj teeb tsa thiab tswj. Los ntawm kev hais txog cov xwm txheej no, kev nyeem qhov ntsuas kub kom raug tuaj yeem tau txais txawm tias qhov siab tshaj plaws qhov kub thiab txias ib puag ncig.