Qhov sib txawv ntawm qhov kub thiab txias ntsuas hluav taws xob tiv thaiv thiab thermocouple

Qhov sib txawv ntawm thermocouples thiab thermal resesors
{{01. Cov teeb liab sib txawv:
Thermal deistors yog tsim lawv tus kheej . Thermal resistor ua haujlwm raws li lub hauv paus uas cov tsis kam ntawm cov hlau tsis kam pauv nrog kub; Thaum thermouples: Weld ob lub xov hlau lossis cov nyhav sib txawv ntawm ob qho tib si Ntxim .
2. Cov ntsuas kub tau pom los ntawm ob sensors yog txawv:
Thermal resistors feem ntau ntes tau qhov ntsuas kub kub ntawm {{degrees, thaum qhov ntsuas kub thiab txias tau ntau yam ntawm {}} {3}
3. cov khoom sib txawv:
Thermal tsim tawm yog cov khoom siv hlau nrog cov khoom siv kub-rhiab {}} Cov khoom siv bimetalce {}}}}}}}}}}}}}}} Qhov sib txawv yog tsim ntawm ob kawg ntawm ob qho sib txawv hlau hlau. Nws tuaj yeem faib ua cov lej sib txawv (MV), nrog rau cov lej tiav thiab tsis zoo} tsim nyog, thiab qee tus yog pheej yig dua resistors, tab sis cov nqi ntawm thermocoup yog siab thaum cov nqi hlau muaj suav nrog {}}
4. kev sib txawv nrog PLC:
Cov lus tawm tswv yim ntawm thermal resistors thiab thermiource sib raug zoo rau 4 ~} Kos npe, Thermocouple yog TC Liab Teeb! (PLC kuj muaj thermal resistor module thiab thermocouple module, uas tuaj yeem ncaj qha cov tswv yim tsis kam thiab thermocouple teeb liab .
Qhov ntsuas kub ntawm cov resistor txawv ntawm cov thermocouple resistor yog ntsuas, ntev li ntev tau ntsuas {} Tam sim no, muaj ob hom: hlau thermal resistor thiab semiconductor thermistor .
The resistance value and temperature of metal thermal resistor can generally be expressed by the following approximate relationship, that is, Rt{{0}}Rt0[1+α(t-t0)]
Qhov twg rt yog cov tsis kam nqi ntawm qhov kub t; Rt {{{{{0}}}} yog cov tshuaj tiv thaiv tus nqi tiv thaiv ntawm T0 (feem ntau yog0=0 degree); α yog cov ntsuas kub yog kub li cas {}} Qhov kev sib raug zoo ntawm cov cua nab kuab thiab kub} AB / nyob rau RT yog tus nqi tiv thaiv kub t; A thiab b nyob ntawm tus qauv ntawm semiconductor cov ntaub ntawv . tsis tu ncua {}}
Hauv kev sib piv, tus ntsuas kub muaj qhov kub tshaj tawm thiab ntsuas qhov ntsuas kub yog qhov tsis zoo, thiab kev tswj hwm tsheb ntawm cov khoom siv hauv tsev thiab tsheb feem ntau haum rau kev ntsuas kub nyob rau hauv cov ntau ntawm -200}}}}} Lawv tau siv dav hauv cov txheej txheem tswj {}}
Los ntawm qhov kev hloov pauv ntawm qhov hloov pauv ntawm qhov kub, feem ntau cov khoom siv hluav taws xob tsis muaj zog, thiab cov khoom siv hluav taws xob loj dua li siv tau kub {{.} Nws yuav tsum muaj cov nqi nruab nrab muaj nuj nqi (nyiam dua txoj kev sib raug zoo).