Ua haujlwm ua haujlwm ntawm thermocouple thiab thermal resistor kub sensor!
Tso lus
Thermocouples thiab thermal tsim tawm yog qhov kub hnov cov ntsiab thiab cov twj tseem ceeb. Lawv ncaj qha ntsuas qhov kub thiab txias thiab hloov cov cim hluav taws xob hauv thermoelectric muaj peev xwm teeb tsa, uas yog ces hloov mus rau hauv nruab nrab ntawm cov twj ntsuas hluav taws xob (theem nrab seev). Tus txheej txheem yooj yim ntawm thermocouple kub ntsuas yog tias ob tug cwj pwm ntawm cov qoob loo sib txawv ua ib lub voj kaw. Thaum muaj qhov ntsuas kub ntawm ob qho kawg, tam sim no yuav ntws los ntawm lub voj. Nyob rau lub sijhawm no, muaj lub zog hluav taws xob ntawm ob xaus - thermoelectric muaj peev xwm, uas yog qhov thiaj li hu ua cov nyhuv pom. Ob homogeneous tus cwj pwm ntawm cov compositions 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 tau txais thaum kawg xaus kub yog 0 degree, thiab sib txawv thermocouces 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.
Ua haujlwm ua haujlwm ntawm thermocouple kub sensor
Ob tug neeg sib txawv ntawm cov khoom sib txawv (hu ua Thermocouple xaim lossis kub electrode) tau txuas rau ob qho 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 ib lub zog hloov pauv, uas hloov tau cua sov lub zog 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 thermoelectric yog qhov sib txawv ntawm qhov kub thiab txias ntawm ob qho kawg ntawm qhov sib txawv txias thiab ua haujlwm kawg ntawm thermocouple;
2: Qhov loj ntawm cov thermoelectric peev xwm tsim los ntawm thermocouple, tsis muaj dab tsi los ua qhov ntev thiab qhov sib txawv ntawm qhov sib txawv ntawm ob xaus;
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. Weld ob tug cwj pwm lossis semiconductors a thiab b ntawm cov khoom sib txawv ua ke los ua lub voj kaw, raws li qhia hauv daim duab. Thaum muaj qhov sib txawv ntawm ob qho tib si txuas cov ntsiab lus 1 thiab 2 ntawm kev coj ua A thiab B, yog li ua ib qho tam sim no ntawm cov hluav taws xob. Qhov tshwm sim no hu ua cov nyhuv thermoelectric nyhuv. Thermocouples ua haujlwm los ntawm kev siv cov nyhuv no.
