Dab tsi yog kev tsim khoom lag luam ntawm cov thermored thermocotres?

Vim hais tias ntawm lawv cov kev tshwj xeeb tshwj xeeb, muaj kev ntseeg siab tau ua rau thermocouces tau loj hlob nyob rau hauv ntau cov kev cai saib xyuas qhov kub thiab txias. Paub txog li cas cov thermocoupples no yuav ua rau cov kev nkag siab tseem ceeb ntawm kev tsim kho ntawm lawv cov kev tsim kho thiab cov laj thawj ntawm lawv txoj kev ua haujlwm.
Xaiv cov ntaub ntawv los ua ntej hauv kev tsim cov khoom siv cua thermored. Qhov ntsuas kub tshwj xeeb thiab thov cov lus qhia hauv kev xaiv cov khoom siv thermoelectric zoo. Ntawm feem ntau siv thermoelectric cov ntaub ntawv yog nickel-chromium, npib tsib xee, platinum-rhodium, thiab lwm tus. Cov ntaub ntawv xaiv tau zoo no muab cov tshuaj ntsuam xyuas kom haum ntawm lawv cov txiaj ntsig thermoelectric zoo. Dhau li, kev thaiv cov ntaub ntawv sab nraud uas tau xaiv. Feem ntau siv rau qhov no yog stainless hlau, inconel, los yog lwm cov kev txhim kho corrosion-resistant alloys raws li lawv yuav tsum tau ua dhau kev ntxhov siab thiab xav tau ib puag ncig kev ntxhov siab thiab xav tau ib puag ncig.
Sib dhos cov khoom tseem ceeb tuaj ob tom qab cov ntaub ntawv tau xaiv. Lub plawv ntawm cov thermocouple-lub thermoelectric cov xov hlau-yog nyob rau hauv ib tug ceramic lossis pob zeb av insulating. Tus insulator no ua tiav ntau lub hom phiaj. Nws cais cov hlau thermoelectric ntawm ib qho ntxiv rau hluav taws xob, yog li tsis txhob muaj cov hluav taws xob luv luv. Los ntawm kev sib kis ntawm cov xov hluav taws xob thiab cov hluav taws xob ib puag ncig, nws tseem muaj rwb thaiv tsev thermal, yog li khaws cia qhov tseeb ntawm qhov ntsuas kub. Ua tib zoo ntim ib ncig ntawm cov xov hlau thermoelectric, cov tshuaj insulating yog tuaj yeem lav hom tubogeneous thiab tas li txheej ntawm kev tiv thaiv.
Cov kev sib dhos tau muab tso rau hauv cov txheej txheem tiv thaiv riam yog qhov sib dhos ntawm cov ntsiab lus tseem ceeb ntawm cov ntsiab lus tseem ceeb. Qhov no yog theem tseem ceeb ntawm kev tsim khoom raws li cov riam sab nraud muab cov tshuab thermocouple zog zog thiab kev tiv thaiv. Feem ntau yog tsim ntawm cov khoom siv corrosion-resistant cov ntaub ntawv, sab nraud sheath yog lub raj seamless. Cov xov thermoelectric lossis rwb thaiv tsev tsis raug puas tsuaj los ntawm kev tso ua ke hauv lub raj.
Txo lub tsho tiv thaiv thermocouple lub taub los tom ntej tom qab cov rooj sib txoos yog sab hauv sheath. Feem ntau, ua kom ib txoj kev ua tiav-ib qho los ua qhov no. Swaging dhau qhov kev ua rog thermocouple ntawm cov txheej txheem ntawm kev tuag nrog kev ua yeeb yam me me. Lub thermocouple's tag nrho cov cheeb yog qis dua thaum lub ntsej muag sab nraud thiab sab hauv cov ntsiab lus compress nyob rau hauv cov tuag. Nrog rau ua cov thermocouple ntau me, cov txheej txheem no nce nws cov khoom siv zog thiab hloov tau zoo.
Lub tsho tiv thaiv thermocouple yuav yauv mus rau kev kho cua sov tom qab kev ua kom sov. Txhua qhov nro sab hauv ua haujlwm thaum lub sijhawm ua haujlwm ywj siab tawm los ntawm kev kho cua sov. Nws kuj tseem pab cov neeg kho tshuab zoo ntawm cov khoom siv insulating thiab cov riam sab nraud kom zoo dua. Ua tib zoo saib xyuas ntawm cov txheej txheem kho cua sov tuaj yeem lav tias cov yam ntxwv thermoeltric ntawm cov xov hlau nyob tsis tau ua ke.
Thaum kawg lub armored thermocouple qhov xaus tau npaj txhij rau kev sib txuas. Cov khoom tsim nyog los yog kev sib txuas yog affixed rau lub thermoelectric xov, uas tsis muaj rwb thaiv tsev nyob rau lawv xaus. Cov txuas no yog tsim los muab cov hluav taws xob tsis sib xws nrog rau cov ntaub thaiv cov xaim hluav taws xob los ntawm kev ua phem. Txhawm rau kom nres ntawm noo noo los noo noo lossis lwm cov pa paug, xaus ntawm cov sheath sab nraud kuj tseem yuav muab khi lossis capped.
Lub fabrication ntawm cov thermored thermored thermored thermored thermored thermored thermorples yuav tsum tau xaiv cov khoom siv tiv thaiv, txoj kab uas ua kom muaj zog, kev npaj sov, thiab xaus rau kev npaj rau kev sib txuas. Lav cov khoom ua tau zoo, muaj kev cia siab, thiab kev ua tau zoo ntawm lub caj dab thermocouple yog nyob ntawm txhua theem hauv cov txheej txheem. To taub cov txheej txheem no pab cov lag luam los soj ntsuam cov thermocouples thiab xaiv cov kev xav tau zoo tshaj plaws rau lawv qhov ntsuas ntsuas kub.