Dab tsi yog lub neej ntev ntawm armored platinum tiv thaiv tus pas ntsuas kub?

Txhawm rau kom paub seb puas muaj lub platinum tiv thaiv qhov kub thiab txias (PTT) muaj teeb meem tshwm sim, koj yuav tsum ua qhov kev kuaj mob dav dav uas suav nrog kev kuaj hluav taws xob, tshuaj xyuas lub cev, thiab kev kawm txog kev ua haujlwm. Sheathed platinum kuj kub detectors feem ntau ua hauj lwm nyob rau hauv industrial kub ntsuas daim ntaub ntawv vim hais tias lawv yog me me thiab muaj peev xwm tiv taus shocks. Txawm li cas los xij, lawv qhov tsis xws luag feem ntau nyuaj nrhiav thiab yuav tsum tau pom siv cov txheej txheem tshawb fawb.




Thawj kauj ruam hauv kev ntsuam xyuas ua ntej yuav tsum tau saib ntawm qhov kev teeb tsa thiab qhov tshwm sim. Saib rau tej yam tshwm sim deformation, flattening, los yog txhua yam kev puas tsuaj ntawm lub tes tsho tiv thaiv, tshwj xeeb tshaj yog nyob ib ncig ntawm lub khoov qhov twg muaj tej tawg los yog dents. Cov kev tsis zoo ntawm lub cev no tuaj yeem ua rau cov rwb thaiv tsev tawg lossis cov hlau hauv platinum tawg. Xyuas kom pom tias lub hlws ris lub thawv foob tseem zoo li qub thiab yog tias lub nplhaib sealing pom cov tsos mob ntawm hnav, tawv, lossis tawg. Yog tias lub thawv haum nrog lub npog ntsej muag lossis lub caj pas tsis nruj, noo noo tuaj yeem nkag tau yooj yim, uas ua rau cov rwb thaiv tsev tsis zoo. Yog hais tias cov terminals yog xeb, blackened los ntawm oxidation, los yog muaj plua plav ntau rau lawv, nws txhais tau hais tias ib puag ncig yog av noo heev los yog cov txij nkawm tsis zoo txaus, uas yuav ua rau cov teeb liab kis tau tus mob tsis zoo.







Qhov thib ob, txoj hauv kev tseem ceeb los nrhiav qhov txhaum yog ntsuas hluav taws xob. Pt100 platinum tiv thaiv tus pas ntsuas kub yuav tsum nyeem 100Ω ntawm 0℃thaum siv lub siab -precision multimeter los ntsuas qhov tsis kam. Qhov kev tiv thaiv yuav tsum nce mus txog 0.385Ω rau txhua 1℃qhov kub thiab txias. Yog tias qhov ntsuas tsis kam qis dua tus nqi nominal (piv txwv li, qis dua 90Ω), nws tuaj yeem txhais tau tias muaj luv luv hauv RTD. Qhov no feem ntau yog tshwm sim los ntawm dej nkag mus rau hauv lub raj tiv thaiv, hlau shavings bridging saum npoo, los yog rwb thaiv tsev tsis ua hauj lwm uas ua rau platinum hlau kov lub casing. Yog tias qhov kev tiv thaiv siab heev los yog tsis kawg, nws txhais tau hais tias cov hlau lead yog qhib los yog lub davhlau ya nyob twg thaiv yog xoob. Koj yuav tsum ua tib zoo saib ntawm lub thawv sib txuas kom pom tias muaj cov ntsia hlau ploj lawm lossis cov pob qij txha tau xoob. Yog tias lub ntsuas ntsuas pom qhov kev nyeem tsis zoo, koj yuav tsum kuaj xyuas qhov tsis raug xaim polarity lossis ib feem luv luv Circuit Court.



Tsis tas li ntawd, koj yuav tsum ntsuas cov rwb thaiv tsev tiv thaiv kom pom tias cov rwb thaiv tsev sab hauv ua haujlwm zoo npaum li cas. Siv 500V megohmmeter kom paub seb qhov rwb thaiv tsev zoo li cas ntawm RTD cov hlau lead thiab cov raj tiv thaiv ua haujlwm. Hauv cov xwm txheej ib txwm, nws yuav tsum yog ntau tshaj 100MΩ. Yog tias nws tsawg dua 10MΩ, nws txhais tau hais tias cov txheej txheej rwb thaiv tsev ntub dej, qias neeg, lossis qub, uas tuaj yeem ua rau kev ntsuas kev sib hloov, hloov pauv, lossis ceeb toom cuav. Rwb thaiv tsev tawg sai dua nyob rau hauv qhov chaw kub, av noo, yog li nws yuav tsum tau kuaj tsis tu ncua thiab tiv thaiv los ntawm ya raws.







Tsis tas li ntawd, nws qhov kev ua tau zoo dynamic yuav tsum tau ntsuas los ntawm qhov nws cuam tshuam li cas rau kev hloov pauv hauv qhov kub thiab txias. Muab lub sensor tso rau hauv chav da dej nrog qhov kub thiab txias thiab saib seb qhov ntsuas kub nyob li cas thiab lub sij hawm teb yog qhov qub. Yog tias kev nyeem ntawv hloov pauv ntau lossis siv sijhawm ntev los teb, nws tuaj yeem txhais tau tias qhov kev sib cuag tsis zoo lossis qhov cua sov ua haujlwm tsis zoo vim muaj plua plav, hlau shavings, lossis cov khoom qias neeg hauv lub raj tiv thaiv. Yog tias qhov ntsuas kub tau qis txhua lub sijhawm thiab tsis muaj qhov qhib qhov hluav taws xob, cov khoom siv platinum kuj tuaj yeem raug corroded thiab tawg, uas yuav ua rau kev sib raug zoo - qhov kub thiab txias sib txawv ntawm cov qauv calibration. Hauv qhov no, calibration yog xav tau.







Koj kuj yuav tsum xav txog ib puag ncig uas qhov kev teeb tsa thiab siv yuav tshwm sim. Ntev - lub sij hawm raug kev co, kub siab, los yog corrosive yam yuav ua tau yooj yim ua rau cov hlau lead ua tawg los yog lub raj tiv thaiv mus rau qhov. Thermal cycling stress tuaj yeem tsim micro- tawg hauv cov qauv sab hauv ntawm cov khoom siv thaum nws qhib thiab kaw ntau zaus. Qhov no tuaj yeem ua rau muaj kev poob qis. Hauv qhov xwm txheej no, sim maj mam co lub sensor thiab saib seb lub ntsuas ntsuas kev nyeem hloov pauv. seb nws ua li cas, nws tuaj yeem txhais tau tias muaj kev sib txuas sab hauv.







Qhov kawg tab sis tsis kawg, tshem tawm cov kev cuam tshuam sab nraud. Txhawm rau kom tsis txhob muaj teeb meem kev kuaj mob tsis raug vim qhov ntsuas ntsuas tsis ua haujlwm, xyuas seb cov twj paj nruag thib ob puas ua haujlwm raug thiab yog cov xov hlau raug. Saib cov ntaub ntawv ib sab ntawm lwm cov ntsiab lus ntsuas uas ua haujlwm zoo ib yam. Yog tias qhov no tsuas yog ib qho tsis ncaj ncees lawm, armored platinum tiv thaiv tus pas ntsuas kub yog qhov teeb meem.







Cov Ntsiab Lus Txiav Txim Siab: Kom sai sai pom cov teeb meem tsis tu ncua nrog armored platinum tiv thaiv tus pas ntsuas kub, siv lub tshuab multimeter, megohmmeter, thiab cov xwm txheej uas tus pas ntsuas kub tau siv los ua raws li cov txheej txheem kuaj mob "sab nraud ua ntej sab hauv, zoo li qub ua ntej dynamic, hluav taws xob ua ntej thermal." Feem ntau cov teeb meem yog los ntawm kev txhim kho qhov tsis ncaj ncees lawm los yog corrosion nyob rau hauv ib puag ncig, tsis yog los ntawm ib qho teeb meem ntawm qhov nws tus kheej.