Cov xaim hluav taws xob yog ib khub xov hlau nrog cov txheej txheem insulating uas muaj tib lub zog thermocouple nyob rau hauv ib tug kub ntau (0 ~ 100 ° C). Yuam kev vim qhov ntsuas kub hloov ntawm qhov kev sib tshuam. Cov ntaub ntawv them hluav taws xob hauv qab no yuav qhia koj cov khoom siv Thermocohopleuple xaim yog, thiab kev faib tawm ntawm Thermocouple Them Hlau.
1. Cov khoom siv thermocouple xaim xaim?
Cov nyiaj them rau cov nyiaj dav dav yuav tsum muaj qhov zoo thiab tsis zoo cov hluav taws xob kom zoo ib yam li cov ntaub ntawv zoo thiab tsis zoo ntawm qhov thermocouple. K-hom thermocouples yog npib tsib xee-cadmium (zoo) thiab nickel-silicon (tsis zoo -
2. Dab tsi yog qhov ua haujlwm ntawm Thermocouple them xaim
Nws yog kom txuas ntxiv cov kub electrode, uas yog, qhov txias txias ntawm lub xov tooj txawb thermocouple, thiab txuas nrog cov twj tso tawm los ua qhov ntsuas kub. Sib npaug rau tus qauv hauv tebchaws ntawm IEC 584-3 "Thermocouple Part 3 - Them Hlau". Cov khoom lag luam feem ntau yog siv nyob rau ntau qhov ntsuas kub ntsuas, thiab tau siv dav hauv lub zog nuclear, roj av, hlau hluav taws xob thiab lwm cov chaw haujlwm.
3. Kev faib tawm ntawm Thermocouple them nyiaj
Hauv txoj ntsiab cai, nws tau muab faib ua hom kev txuas ntxiv thiab them nyiaj. Lub nominal tshuaj muaj pes tsawg leeg ntawm cov xaim xaim hluav taws xob ntawm cov hom txuas txuas ntxiv yog tib yam li ntawm thermocouple, yog li lub peev xwm thermocoupric, yog li lub peev xwm thermoeltric kuj yog tib yam. Nws yog sawv cev los ntawm "X" hauv tus qauv, thiab nominal tshuaj muaj pes tsawg leeg ntawm cov xaim hluav taws xob yog tib yam. Nws yog txawv ntawm cov kev sib tw thermocouple, tab sis nyob rau hauv nws cov kev ua haujlwm kub muaj ntau, cov txiaj ntsig thermoelectric, uas yog sawv cev los ntawm "C" hauv tus qauv.
Kev them nyiaj tau raug muab faib ua cov qib thiab qib kawm. Qhov ua yuam kev tom qab them nyiaj ntawm qib Precision feem ntau tsuas yog ib nrab ntawm qib ntawd, uas feem ntau yog siv nyob rau hauv cov chaw nrog kev ntsuas siab yog qhov yuav tsum tau ua. Piv txwv li, rau cov xov tooj ntawm S thiab R Taus taus ntawm qib precision yog ± 2.5 ° C, thiab kev ua siab ntev ntawm qib kawm yog ± 5.0 ° C; Rau cov xov tooj ntawm cov nyiaj ntawm K thiab N ua siab ntev, kev ua siab ntev ntawm qib precision yog ± 1.5 ° C, qhov kev pheej hmoo ntawm qib dog dig yog ± 2.5 ℃. Hauv cov qauv, qib dog dig tsis tau cim, thiab qib precision yog ntxiv nrog "S".
Los ntawm kev ua haujlwm kub, nws muab faib ua kev siv dav dav thiab kev siv hluav taws kub. Kev ua haujlwm kub ntawm kev siv dav dav yog 0 ~ 100 ° C (ob peb yog 0 ~ 70 ° C);
Ntxiv rau, cov hlau core core tuaj yeem faib ua ib qho-txheej txheem (cov xov hlau)