Ua ntej, ntau lub thermocouples yog xim - coded. Cov xim no - coding system yog ib qho kev siv pom sai, tab sis nws yog ib qho tseem ceeb uas yuav tsum tau ceev faj. Piv txwv li, hauvHom K thermocouples, uas yog cov feem ntau siv cov thermocouples vim lawv qhov kub thiab txias ntau thiab kev ruaj ntseg zoo, cov hlau zoo feem ntau yog ua los ntawm chromel thiab feem ntau xim daj, thaum cov hlau tsis zoo, ua los ntawm alumel, feem ntau yog xim liab. Txawm li cas los xij, xim - coding qauv yuav txawv nyob rau hauv txawv cheeb tsam los yog raws li txawv manufacturers. Hauv qee qhov kev teeb tsa uas tsis yog qauv lossis laus dua, cov xim yuav tsis ua raws li cov lus pom zoo. Yog li ntawd, tsis txhob cia siab rau cov xim rau kev txheeb xyuas; nws yuav tsum tau siv raws li qhov pib qhia.

Lwm txoj kev txhim khu kev qha yog los xyuas cov khoom siv hlau. Cov thermocouples sib txawv yog tsim los ntawm cov hlau sib txawv, thiab txhua hom muaj ib txoj hlua zoo thiab tsis zoo raws li cov ntaub ntawv no. Piv txwv li, hauvHom J thermocouples, cov hlau zoo yog ua los ntawm cov hlau, paub txog nws cov lus teb zoo nyob rau hauv qee qhov kub thiab txias, thiab cov hlau tsis zoo yog constantan, uas muaj kev ruaj ntseg zoo thiab sib haum nrog hlau. Los ntawm kev xa mus rau cov kev cai thermocouple hom specifications, uas qhia meej meej muaj pes tsawg leeg thiab polarity ntawm txhua hom, cov neeg siv tuaj yeem txiav txim siab qhov tseeb polarities nrog qhov tseeb dua. Tsis tas li ntawd, qee cov thermocouples siab heev tuaj nrog cov ntaub ntawv uas tsis tsuas yog sau cov ntaub ntawv tab sis kuj muab cov ntaub ntawv ntxiv txog cov yam ntxwv ntawm cov hluav taws xob xav tau ntsig txog cov xov hlau zoo thiab tsis zoo.

Peb lub tuam txhab cov khoom siv thermocouple hlau muaj qhov zoo sib xws hauv qhov no. Peb kom meej meej cim qhov zoo thiab tsis zoo nyob ntawm tej ntawm tag nrho peb cov khoom, tsis tsuas yog los ntawm standardized xim - coding tab sis kuj nrog cov ntawv ntshiab. Cov ntawv sau tau luam tawm siv cov ntawv zoo, cov cwj mem ruaj khov uas yuav tsis ploj los yog hnav yooj yim, txawm tias nyob rau hauv ib puag ncig hnyav. Qhov kev txheeb xyuas dual no ua kom cov neeg siv tuaj yeem txheeb xyuas cov xov hlau ceev thiab raug, txuag lub sijhawm thiab txo qhov kev pheej hmoo ntawm kev sib txuas tsis raug.

Ntxiv mus, peb cov xov hlau thermocouple yog tsim los ntawm cov hlau zoo hlau nrog zoo thermal stability thiab durability. Cov txheej txheem tsim khoom suav nrog kev tswj hwm nruj ntawm txhua theem, los ntawm kev xaiv cov khoom siv raw mus rau qhov kawg ntim. Txawm hais tias nws yog rau cov ntawv thov kev lag luam kub, xws li kev tsim steel qhov twg qhov kub thiab txias tuaj yeem ncav cuag qib siab, lossis cov kev sim kev tshawb fawb meej uas xav tau qhov tseeb ntawm feeb, peb cov khoom tuaj yeem tswj tau qhov kev ua tau zoo thiab ntsuas qhov tseeb. Peb kuj tseem ua qhov kev sim nruj rau txhua pawg ntawm cov xov hlau thermocouple, suav nrog kev sim rau hluav taws xob conductivity, thermal emf stability, thiab txhua yam muaj zog. Nrog rau cov txheej txheem tswj xyuas nruj, peb lav tias cov xaim zoo thiab tsis zoo hauv peb cov khoom siv thermocouple ua tau raws li cov qauv kev lag luam siab tshaj plaws, muab cov kev daws teeb meem rau kev ntsuas kub rau koj.

Hauv kev xaus, thaum muaj ntau txoj hauv kev los txheeb xyuas qhov zoo thiab qhov tsis zoo ntawm cov khoom siv thermocouple, xaiv peb cov khoom zoo thermocouple hlau ua kom yooj yim cov txheej txheem thiab xyuas kom meej thiab ruaj khov ntsuas kub. Peb txoj kev cog lus rau qhov zoo thiab cov neeg siv khoom - tus phooj ywg tsim ua rau peb xaiv qhov zoo tshaj plaws rau tag nrho koj cov thermocouple hlau xav tau.