RTD sensor yog ib hom kev ntsuas kub uas feem ntau siv nyob rau hauv nruab nrab thiab tsis tshua muaj kub cheeb tsam, uas siv cov yam ntxwv ntawm cov tsis kam ntawm cov tshuaj nws tus kheej hloov nrog kev hloov ntawm qhov kub thiab txias.
Thermal resistance feem ntau yog ua los ntawm cov khoom siv hlau ntshiab, platinum thiab tooj liab yog tam sim no siv dav tshaj plaws, thiab cov ntaub ntawv xws li npib tsib xee, manganese thiab rhodium yog tam sim no siv los ua thermal kuj. RTDs feem ntau siv ua ke nrog cov lus qhia, ntsuas ntsuas, thiab cov tswj hluav taws xob. Nws tuaj yeem ntsuas qhov ntsuas kub ntawm cov kua, vapor thiab gaseous media thiab cov khoom ntawm qhov chaw hauv thaj tsam ntawm -200 degree hauv ntau cov txheej txheem ntau lawm. Lub rooj sib dhos RTD feem ntau yog tsim los ntawm cov khoom tseem ceeb xws li ntsuas qhov ntsuas kub, cov khoom sib txuas thiab cov thawv sib txuas, uas muaj qhov zoo ntawm qhov ntsuas qhov tseeb thiab ruaj khov thiab txhim khu kev qha. Hauv kev siv tswv yim, Pt100 platinum thermal kuj yog qhov siv dav tshaj plaws. Cov txheej txheem ntawm armored platinum thermal kuj yog lub cev muaj zog uas muaj qhov ntsuas kub, cov khoom siv, cov khoom siv insulating thiab stainless hlau bushings, uas muaj cov txiaj ntsig zoo hauv qab no: lub cev lub cev, lub sijhawm thermal teb ceev, kev co kuj, kev pab lub neej ntev thiab lwm yam zoo. Cov nplaim hluav taws kub tsis kam siv lub thawv sib txuas tshwj xeeb los txwv qhov tawg ntawm cov pa sib xyaw ua ke hauv lub thawv sib txuas vim muaj cov pa taws lossis arcs, thiab lwm yam, thiab yuav tsis ua rau tawg ntawm qhov chaw tsim khoom.
Lub ntsej muag kawg RTD qhov ntsuas qhov ntsuas kub yog tsim los ntawm kev kho tshwj xeeb ntawm cov hlau qhov txhab thiab ua raws li lub ntsej muag kawg ntawm tus pas ntsuas kub. Piv nrog rau cov axial RTD dav dav, nws tuaj yeem cuam tshuam qhov ntsuas kub ntawm lub ntsej muag kawg kom ntsuas qhov tseeb thiab nrawm dua, thiab haum rau ntsuas qhov kub thiab txias.