Dab tsi yog thermocouple? Yuav ua li cas Thermocohople Ua Haujlwm? Dab tsi yog qhov xwm txheej yuav tsum ua rau thermocouple?

Dab tsi yog thermocouple? Qhov no pib nrog lub hauv paus ntsiab lus ntawm thermocouple kub ntsuas. Thermocouple yog qhov ntsuas kub siab thiab yog thawj lub twj paj nruag. Nws ntsuas ncaj qha kub thiab hloov cov teeb liab kub rau hauv qhov ntsuas kub los ntawm kev ntsuas hluav taws xob (ntsuas hluav taws xob). Tus txheej txheem yooj yim ntawm thermocouple kub ntsuas yog tias ob tug cwj pwm ntawm cov cheeb tsam sib txawv ua ib lub voj kaw. Thaum muaj qhov ntsuas kub ntawm ob qho kawg, qhov tam sim no yuav dhau los ntawm lub voj. Nyob rau lub sijhawm no, muaj lub zog hluav taws xob pom ntawm ob xaus - lub peev xwm thermoelectric, uas yog qhov thiaj li hu ua cov nyhuv pom. Ob homogeneous tus neeg coj ntawm cov khoom sib txawv yog thermocouples. Qhov kawg nrog qhov kub siab dua yog qhov ua haujlwm tiav, thiab qhov kawg nrog qhov kub qis yog qhov kawg. Qhov kawg xaus feem ntau yog nyob rau ntawm qhov kub tsis tu ncua. Raws li kev sib raug zoo ntawm thermoelectric muaj peev xwm thiab kub, lub ntsuas cua sov yog tsim; Cov nplai yog tau thaum muaj qhov kub pub dawb yog 0 degree. Txawv thermocouples sib txawv muaj cov nplai sib txawv. Thaum ib tus thib peb cov khoom siv hlau txuas nrog lub voj voos kub, ntev raws li qhov ntsuas kub ntawm ob qho tib si ntawm cov khoom siv, nws yuav tsis cuam tshuam los ntawm cov neeg thib peb sib txuas nrog lub voj. Yog li ntawd, thaum ntsuas qhov kub nrog qhov thermocouple, ntsuas ntsuas tau tuaj yeem txuas nrog. Tom qab ntsuas qhov ntsuas hluav taws xob thermoelectric, qhov ntsuas kub ntawm qhov nruab nrab ntsuas tau tuaj yeem paub.

Thermocouple ua hauj lwm lub ntsiab cai:
Ob tug nais ntsej muag ntawm cov khoom sib txawv (hu ua Thermocouple xaim lossis thermoelectrode) tau txuas nrog ob kawg los ua lub voj. Thaum qhov ntsuas kub ntawm lub hlws ris yog txawv, kev quab yuam hluav taws xob yuav tsim tawm hauv lub voj. Qhov tshwm sim no hu ua cov nyhuv thermoelectric, thiab lub zog hluav taws xob no hu ua lub peev xwm thermoelectric. Thermocouples siv lub ntsiab cai no los ntsuas qhov kub. Ntawm lawv, qhov kawg ncaj qha siv los ntsuas qhov ntsuas kub ntawm lub nruab nrab yog hu ua kev ntsuas qhov kawg (tseem hu ua qhov kawg); Lub sijhawm txias txias tau txuas nrog cov twj paj nruag tso tawm los yog cov twj paj nruag sib piv, thiab cov twj paj nruag tso tawm yuav qhia tau tias yog Thermocouple.

Thermocouple yog qhov tseeb lub zog hloov pauv, uas hloov lub zog thermal rau hauv lub zog hluav taws xob thiab siv cov khoom siv thermoelectric kub. Rau cov thermoelectric muaj peev xwm ntawm thermocouple, cov teeb meem nram qab no yuav tsum tau sau tseg:
1: Lub peev xwm thermoelecricle yog qhov sib txawv ntawm qhov kub thiab txias ntawm ob xaus ntawm qhov kub ntawm qhov sib txawv ntawm qhov kawg ntawm lub thermocrouple;
2: Qhov loj ntawm cov thermoelectric peev xwm tsim los ntawm thermocouple, thaum cov khoom ntawm thermocouple yog uniform yog uniform yog uniform, tsis muaj dab tsi ua rau qhov ntev thiab txoj kab uas hla ntawm cov thermocouple,
Tab sis tsuas yog nrog cov muaj pes tsawg leeg ntawm cov khoom siv thermocouple thiab qhov kub ntawm qhov sib txawv ntawm ob qho kawg;
3: Thaum cov khoom muaj pes tsawg leeg ntawm ob xaim hluav taws xob ntawm thermocouple yog txiav txim siab ntawm thermocoupricel yog tsuas muaj feem cuam tshuam rau qhov kub ntawm lub thermocouple; Yog hais tias qhov ntsuas kub ntawm qhov txias txias kawg ntawm lub thermocouple yog key, lub peev xwm thermoellepric tsuas yog ib qho nuj nqis ntawm kev ua haujlwm sov.

Feem ntau siv thermocouple cov ntaub ntawv yog:
Thermocouple kawm tus lej thermocouple khoom
Zoo Electrode qhov tsis zoo electrode
S Platinum Rhodium 10 ntshiab platinum
R Platinum Rhodium 13 ntshiab platinum
B Platinum Rhodium 30 Platinum Rhodium 6
K npib tsib chromium npib tsib xee-silicon
T dawb huv tooj liab liab-npib tsib xee
J hlau tooj liab-npib tsib xee
N npib-chromium-silicon npib tsib xee-silicon
E Nickel-chromium tooj liab-nickel