Dab tsi yog qhov ua tsis tau zoo ntawm ceev - txuas hom thermocouples

I. Tsawg Thermoelectric Potential (Low Reading on the Instrument)

Qhov no yog qhov teeb meem feem ntau, thiab nws tshwm sim raws li qhov ntsuas kub uas qis dua qhov ntsuas kub tiag tiag.


Phem los yog oxidized ceev -txuas kev sib cuag

Yog hais tias lub connector yog nyob rau hauv ib tug kub los yog ntub qhov chaw nyob rau lub sij hawm ntev, lub pins nto yuav oxidize los yog sau cov plua plav, uas yuav ua rau cov kev tiv thaiv tiv thaiv siab dua thiab cov teeb liab kis tau tus mob.

Kev daws: Tshem lub connector tawm thiab xyuas nws tsis tu ncua. Yog tias tsim nyog, ntxuav cov pins nrog dej cawv tsis muaj dej thiab muab cov tshuaj pleev xim rau lawv kom tsis txhob xeb.

Lub caij nplooj ntoos hlav sab hauv ua tsis tau, yog li tsis muaj kev sib cuag txaus.

Nquag ntsaws thiab unplugging lossis annealing ntawm qhov kub thiab txias tuaj yeem ua rau lub caij nplooj ntoos hlav tsis tshua muaj elastic, uas tuaj yeem ua rau lub teeb liab poob los ntawm kev ua rau nws nyuaj rau cov pins kom sib cuag nrog lub qhov (socket).

Txhawm rau kho qhov teeb meem, koj tuaj yeem hloov lub connector lub caij nplooj ntoos hlav sab hauv lossis tag nrho cov khoom txuas nrog lub siab -zoo kub-plated ib qho.

"Green Corrosion" los yog tawg ntawm cov khoom siv thermocouple electrode

Thaum K-hom thermocouples tau siv rau lub sijhawm ntev ntawm qhov kub siab tshaj 900 degree, cov nickel-chromium zoo electrode tuaj yeem oxidize xaiv, tsim cov xim ntsuab corrosion uas txo cov thermoelectric tej zaum tso zis.

Txhawm rau kho qhov teeb meem, txiav tawm qhov tsis zoo thiab rov- vuam nws, lossis hloov nws nrog N- hom thermocouple kom nws ruaj khov dua.

Cov nyiaj them xaim thiab cov khoom txuas tsis txuas nrog nruj txaus.

Yog tias qhov crimping nyob rau sab nraum qab ntawm lub connector tsis nruj, kev co tuaj yeem ua rau cov xaim tuaj yeem dawb los yog ua rau kev sib txuas tsis zoo, uas tuaj yeem cuam tshuam cov teeb liab.

Kev daws: Muab cov khoom sib txuas los tshuaj xyuas qhov zoo ntawm cov crimping, thiab siv ob txoj kev kho uas suav nrog ob qho tib si vuam thiab crimping kom nws ntseeg tau ntau dua.



II. Siab Thermoelectric Potential (High Instrument Reading)

Qhov kev ua yuam kev no tsis tshwm sim ntau zaus, tab sis nws tseem cuam tshuam rau qhov kev txiav txim siab.

Calibration ntawm lub thermocouple thiab tso saib ntsuas tsis zoo ib yam.

Yog tias lub thermocouple yog K- hom thiab lub ntsuas ntsuas tau teem rau S- hom, tib lub peev xwm ntsuas kub yuav raug nyeem raws li qhov kub ntau dua vim tias ob hom kev ntsuas sib txawv.

Kev daws: Txheeb xyuas qhov kev ntsuas ntsuas ntawm ob qho tib si thermocouple thiab lub ntsuas ntsuas kom paub tseeb tias lawv zoo ib yam.

DC Interference Signal nyob rau sab saum toj ntawm

Hauv av voj voog tam sim no tuaj yeem muab ntxiv rau lub peev xwm thermoelectric thaum koj nyob ze - cov khoom siv fais fab DC lossis thaum lub hauv av tsis zoo. Qhov no tuaj yeem ua rau cov ntsuas ntsuas siab dhau.

Txhawm rau tiv thaiv kev ua ib lub voj, siv ib qho - taw tes grounding mus kom ze, nrog cov thaiv thaiv txheej hauv av tsuas yog ib qho kawg.



III. Tsis ruaj tsis khov Signal Output (Tus nqi ntawm cov zaub hloov txhua lub sijhawm)

Kev ruaj ntseg ntawm kev tswj tsis siv neeg yog cuam tshuam los ntawm kev hloov pauv loj hauv kev nyeem ntawv.

Loose los yog vibrating ceev connectors uas ua rau kev sib txuas mus poob ntawm lub sij hawm

Yog tias koj muab cov khoom txuas rau ntawm cov khoom siv vibrating xws li twj thiab compressors, nws tuaj yeem xoob me ntsis vim qhov kev vibration, uas tuaj yeem ua rau lub teeb liab tawm ntawm lub sijhawm.

Siv cov khoom sib txuas ceev nrog lub tshuab xauv, lossis muab tso rau hauv cov clips uas txwv tsis pub cov khoom los ntawm kev tawm mus.Thermocouple electrodes uas "yuav luag tawg" lossis tsis zoo welded

Cov kab hluav taws xob thermocouple tuaj yeem txuas thiab txiav tawm ib ntus thaum lawv co vim tias lawv hnav tawm lossis muaj pob txha me me. Qhov no yuav ua rau muaj teeb meem cuam tshuam.

Siv ib tug multimeter los ntsuas lub Circuit Court tsis kam. Yog tias tus nqi hloov pauv, koj yuav tsum hloov lub thermocouple tam sim ntawd.

Kev cuam tshuam los ntawm electromagnetic teb (EMI)

Thaum koj nyob ze ntawm cov khoom siv hluav taws xob muaj zog xws li cov motors thiab inverters, qhov chaw sib nqus sib nqus yuav ua rau cuam tshuam qhov hluav taws xob hauv kab teeb liab.

Kev daws: Siv cov khoom siv tiv thaiv kev tiv thaiv, nyob deb ntawm lub hwj chim cables, thiab tsis txhob muab tso rau hauv tib lub kav dej.



IV. Tsis muaj Thermoelectric Potential Output (Lub ntsuas tsis qhia dab tsi lossis nws hais tias muaj teeb meem)

Qhov no feem ntau qhia tau hais tias lub teeb liab Circuit Court tawg tag.

Lub fast connector tau tawg pins los yog qhib Circuit Court nyob rau hauv.

Nquag ntsaws thiab tshem tawm lossis kev quab yuam sab nraud tuaj yeem ua rau cov pins khoov lossis tawg, ua rau tsis ua tiav ntawm kev sib txuas hluav taws xob.

Kev daws: Hloov cov khoom sib txuas nrog aviation - qib connectors uas muaj zog mechanically.

Ib qho kev them nyiaj raug puas tsuaj los yog ib qho thermocouple hlau tawg

Kev khoov ntau dhau thaum lub sijhawm teeb tsa, siab -kub embrittlement, lossis kev puas tsuaj txhua yam tuaj yeem ua rau cov xaim thermocouple tawg.

Kev daws: Txheeb xyuas lub voj voog txuas ntxiv hauv qhov chaw, nrhiav qhov chaw tawg, thiab kho lossis hloov nws.



V. Cov lus qhia txog Kev Tiv Thaiv Kev Tiv Thaiv

Txhawm rau ua kom sai - connector hom thermocouples txhim khu kev qha, koj yuav tsum ua cov hauv qab no:

Txheeb xyuas cov xwm txheej txuas txuas ntau zaus: Txhua peb lub hlis, tshem tawm cov khoom sib txuas los nrhiav oxidation lossis deformation ntawm cov pins, tom qab ntawd ntxuav thiab ceev cov kev sib txuas.

Standardize cov txheej txheem kev khiav hauj lwm: Tsis txhob oblique insertion thiab quab yuam nias thaum ntsaws thiab unplugging, kom ntseeg tau tias du ua hauj lwm los ntawm kev ua raws li cov lus qhia zawj.

Ua kom muaj kev tiv thaiv ib puag ncig: Siv cov khoom sib txuas hauv cov chaw uas muaj cov av noo ntau thiab muab lub kaus mom tiv thaiv ntawm cov khoom sib txuas kom tsis txhob muaj plua plav thiab roj nkag mus. Tsim kom muaj kev ntsuas qhov ntsuas: Ua rau ntawm - qhov chaw lossis offline calibration txhua 6 mus rau 12 lub hlis, nyob ntawm cov kev khiav hauj lwm, los xyuas kom meej qhov ntsuas qhov tseeb.