Cov teeb meem twg peb yuav tsum tau them sai sai thaum nkag siab thermal resistors?

1. Rau cov thermoelectric muaj peev xwm ntawm thermocouples, 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 qhov sib txawv ntawm qhov sib txawv ntawm qhov kawg thiab qhov ua haujlwm kawg ntawm thermocrouple;

2: Qhov luaj li ntawm cov thermoelectric peev xwm tsim los ntawm thermocouple yog ywj siab ntawm qhov ntev thiab txoj kab uas hla ntawm cov thermocouple yog uniform.

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. Qhov ob qho ntawm cov khoom sib txawv (hu ua Thermocouple xov tooj lossis cov hluav taws kub txuas ntxiv) txuas ntxiv ntawm 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.
Thaum ntsuas qhov kub thiab txias, ntsuas kub thermocouple yuav tsum tau hais tias qhov kawg ntawm txoj kev ntsuas txias (yog li nws thermoelectric muaj peev xwm yog ib feem ntawm kev ntsuas ntsuas kub. Yog tias (qhov chaw nyob) Kub ntawm qhov hloov txias kawg hloov thaum ntsuas kev ntsuas, nws yuav cuam tshuam qhov tseeb ntawm qhov ntsuas tau. Siv qee yam kev ntsuas ntawm qhov xaus txias kom them rau qhov cuam tshuam los ntawm kev hloov pauv qhov kub txias yog hu ua kev them nqi txias kawg ntawm thermocouple.

Daim Ntawv Ntxiv: Kev Xam Xam ntawm Kev Siv Hluav Taws Xob Los ntawm qhov kub thiab txias rau cov hmoov av: ntsuas qhov tseeb kub thiab txias txias, hloov lawv mus rau cov neeg muaj nuj nqis, rho tawm cov nqi ntawm cov nqi zeb, thiab tom qab ntawd tau kub.
Piv txwv. Yog hais tias qhov ntsuas ntsuas tau muaj kev them nqi txias kawg, qhov tseeb kub yog 520 degrees; Yog hais tias qhov ntsuas ntsuas tsis tau muaj kev them nyiaj txias kawg 21.497Mv +1 mv =22. 497Mv; Tom qab ntawd tshawb xyuas cov K-hom thermocouple clove lub rooj kom tau txais ntawd 22.497MV sib raug ntawm 543.47 degrees, uas yog, qhov tseeb kub yog 543.47 degrees. PS: Tus lej kawm tiav yog cov txheej txheem txheem siv los cuam tshuam qhov ntsuas kub ntawm qhov ntsuas kub thiab txias nrog rau cov thermal resistor, thermocouple, resistor, thiab muaj peev xwm.

Thib ob, qhov sib txawv ntawm thermocouple thiab thermal resistor:

Ua ntej, qhov xwm ntawm teeb liab. Lub thermal resistor nws tus kheej yog lub resistor. Kev hloov pauv ntawm qhov kub ua rau lub resistor los tsim cov khoom lag luam zoo lossis tsis zoo rau kev tawm tsam; Thaum lub thermocouple tsim kev hloov pauv hauv voltage, uas hloov pauv nrog kev hloov ntawm kub. Txawm hais tias lawv tau hu rau qhov ntsuas kub thiab txias ntsuas, lawv txoj kev ntsuas ntsuas kub sib txawv. Thermocouples yog siv nyob rau hauv qhov chaw kub khiav dej ib puag ncig, xws li platinum rhodium {}}}}}}}}}} 0 degrees 1800 degrees hauv ib lub sij hawm luv luv. S hom ntsuas 20 ~ 1300 (luv luv 1600), K Hom Ntsuas 50 ~ 1000, Luv 1200). XK hom 50 ~ 600 (800), E Hom 40 ~ 800 (900). Kuj tseem muaj J hom, thiab lwm yam. Hom twj paj nruag no feem ntau siv rau qhov kub siab dua li 500 degrees. Hauv thaj chaw tsawg, cov zis thermoelectric muaj peev xwm yog heev me me. Thaum lub peev xwm me me, cov kev ntsuas cuam tshuam rau kev cuam tshuam thiab theem theem nrab metres yog xav tau heev, txwv tsis pub ntsuas qhov ntsuas tau. Ib qho ntxiv, hauv qhov chaw kub qis dua, qhov kev txheeb ze yuam kev tshwm sim los ntawm kev hloov ntawm qhov txias txias thiab qhov kev hloov ntawm qhov kub thiab txias yog qhov nyuaj rau kev them nyiaj. Nyob rau lub sijhawm no, ntawm nruab nrab thiab tsawg kub, ntsuas qhov ntsuas kub ntawm lub ntsuas kub (xws li qis dua cov roj carbon monoxe) Tam sim no lub Platinum Thermal Resistor PT100 yog ib txwm siv (muaj cov lej ntawm BA1 -50} ~~ 150. Hauv qee lub sijhawm tshwj xeeb, tseem muaj cov lag luam tsis taus, manganese resistors, thiab lwm yam).

Thib ob, cov kub muaj txiaj ntsig tau pom los ntawm ob lub sensors sib txawv. Thermal resistors feem ntau ntes tau ib qho kub thiab txias ntawm {{}} qhov kub thiab txias tuaj yeem kuaj tau kub ntau ntawm {1}} degrees (lossis siab dua). Yog li ntawd, cov qub yog qhov ntsuas kub qis, thaum tom kawg yog qhov ntsuas kub siab.

Thib peb, los ntawm cov khoom taw tes pom, thermal tsim yog cov khoom siv hlau nrog cov khoom siv kub, thaum yog, ob cov hlau sib txawv. Vim qhov kub hloov pauv, muaj peev xwm sib txawv yog tsim ntawm ob qho kawg ntawm ob lub xov hlau sib txawv.

Plaub, kev txiav txim siab ntawm chaw haujlwm thaum ua haujlwm

Thermocouces muaj cov kab lis zoo thiab tsis zoo thiab them cov xov hlau kuj muaj cov qauv zoo thiab tsis zoo. Ua ntej, xyuas kom meej qhov kev sib txuas thiab kev teeb tsa muaj tseeb. Hauv kev ua haujlwm. Cov uas muaj cov neeg sib txawv yog cov luv luv Circuit Court, qhib Circuit Court, kev sib tiv tauj tsis zoo (tuaj yeem raug txiav txim los ntawm kev txiav txim siab) thiab detheration (txheeb los ntawm cov xim saum npoo). Thaum kuaj xyuas, cais cov thermocouple los ntawm theem ob, siv cov cuab yeej thib ob, ntsuas kom luv-ntsuas cov nyiaj them rau hauv chav tsev ob, thiab lub ntsuas qhia txog chav sov. Tom qab ntawd luv luv-Circuitle Terminal, thiab lub meter qhia tias qhov chaw kub huab cua (yog tias tsis yog, cov kab mob yog forty). Tom qab ntawd siv cov multimeter ntawm MV iav mus rau kwv yees li kwv yees lub peev xwm thermoellepric (yog tias ib txwm, thov tshawb xyuas cov txheej txheem). Lub luv ntawm Circuit Court thiab qhib Circuit Court ntawm Thermal resistor tuaj yeem raug txiav txim nrog ib tug multometer. Thaum lub sijhawm ua haujlwm, yog tias muaj kev xav tsis pub dhau los, tsuas yog tshem ib lub xaim tawm ntawm lub resistor kawg thiab saib cov twj tso tawm. Yog tias **** tau mus txog, cov thermal resistor luv scrcuital rov qab rau xoom, thiab cov hlau yog luv-taws thiab cov kev sib txuas ib txwm muaj thiab kev teeb tsa tau lav. Yog tias lub ntsuas dej tsawg lossis tsis ruaj khov, lub raj tiv thaiv tiv thaiv yuav muaj dej nyob hauv.