Hauv kev ntsuas kub ntawm kev lag luam, cov thermocouples raug thiab txav tau threaded sojntsuam- hom platinum tiv thaiv tus pas ntsuas kub yog ob hom kub sensors. Lawv muaj qhov sib txawv tseem ceeb hauv kev tsim qauv, cov qauv kev ua haujlwm, cov yam ntxwv ntawm kev ua haujlwm, thiab cov xwm txheej ntawm daim ntawv thov. Cov hauv qab no muab kev sib piv los ntawm ntau qhov ntev los qhia meej lawv qhov sib txawv tseem ceeb.
I. Qhov txawv ntawm cov qauv tsim thiab kev teeb tsa
1. Txhaum Thermocouples
Lub ntsiab tseem ceeb ntawm cov thermocouples raug nthuav tawm yog tias lawv qhov ntsuas qhov kawg yog ncaj qha mus rau qhov ntsuas nruab nrab, tsis tas yuav tsum muaj kev tiv thaiv ntxiv. Lawv feem ntau yog ua los ntawm ob lub hlau sib txawv (xws li npib tsib xee-chromium thiab npib tsib xee-silicon) welded ua ke los tsim qhov ntsuas kawg, uas ncaj qha tso rau hauv qhov ntsuas nruab nrab. Lawv cov qauv tsim qhia txog kev sib cuag ncaj qha thiab teb sai. Cov qauv tsim tawm ntawm qhov ntsuas qhov kawg tso cai rau nws nkag siab ncaj qha kev hloov pauv hauv nruab nrab qhov kub thiab txias, ua rau lub sijhawm teb ceev heev, ua rau lawv tsim nyog rau cov ntawv thov uas xav tau ntsuas kub tam sim. Piv txwv li, hauv kev ua zaub mov lossis kev lag luam tshuaj, cov khoom siv thermocouples tuaj yeem saib xyuas qhov kub thiab txias hloov hauv cov kua lossis roj, ua kom muaj kev nyab xeeb ntawm cov txheej txheem ntau lawm. Txawm li cas los xij, cov txheej txheem kev teeb tsa yuav tsum ua kom ntseeg tau tias qhov ntsuas qhov kawg yog raus tag nrho hauv qhov ntsuas nruab nrab, uas ua rau kom qhov nyuaj ntawm kev teeb tsa. Tsis tas li ntawd, cov hlau hlau yuav oxidize los yog corrode nyob rau hauv siab - kub los yog corrosive ib puag ncig, cuam tshuam rau ntev - lub sij hawm stability.
2. Movable Threaded Probe-Type Platinum Resistance Thermometers
Cov yam ntxwv tseem ceeb ntawm cov xov tooj txav tau txav tau yooj yim- hom platinum tiv thaiv tus pas ntsuas kub yog lawv cov xov txuas txuas thiab platinum hlau winding qauv. Lawv feem ntau siv cov xov uas txav tau (xws li M18 × 1.5) kom ua tiav kev teeb tsa ruaj ntseg los ntawm kev rub nws mus rau saum npoo ntawm cov khoom ntsuas. Sab hauv, platinum xaim yog qhov txhab ntawm lub thav duab ceramic lossis mica los tsim qhov kub thiab txias -sensing element, uas txuas nrog rau sab nraud Circuit Court los ntawm lub thawv sib txuas. Cov xov tooj txav tau yooj yim tsim kom muaj kev sib raug zoo ntawm qhov kev sojntsuam thiab qhov chaw ntawm cov khoom raug ntsuas, txo cov cua sov thaum lub sijhawm hloov hluav taws xob. Piv txwv li, nyob rau hauv cov khoom noj khoom haus los yog kev lag luam industries, lub movable xov tsim kom muaj kev sib cuag txaus ntawm lub sojntsuam thiab cov khoom nto, txhim kho kev ntsuas qhov tseeb thiab teb ceev. Lawv cov qauv tsim qhia txog qhov yooj ntawm cov xov txuas thiab kev ruaj ntseg ntawm platinum hlau. Cov xov txav txav tau txo cov kev cuam tshuam ntawm ib puag ncig ntawm kev ntsuas qhov tseeb thiab txhim kho kev ua haujlwm ntawm kev co thiab kev poob siab. Txawm li cas los xij, nws cov txheej txheem kev teeb tsa yuav tsum tau ua kom ntseeg tau tias cov xov muaj kev sib cuag nrog lub ntsej muag ntawm cov khoom raug ntsuas, uas ua rau muaj qhov nyuaj ntawm kev teeb tsa. Tsis tas li ntawd, cov hlau platinum tuaj yeem muaj kev hloov pauv hauv kev tiv thaiv vim muaj kev ntxhov siab hloov pauv thaum siv sijhawm ntev -.
II. Qhov txawv ntawm Cov Cai Ua Haujlwm
1. Txoj Cai Ua Haujlwm ntawm Cov Thermocouples Exposed
Thermocouples yog raws li cov nyhuv Seebeck, qhov twg ob lub hlau conductors sib txawv ua kom muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov kub thiab txias. Thaum ob lub hlau conductors txuas nrog rau tsim ib lub voj voog kaw, thiab ob qhov kev sib txuas muaj qhov sib txawv ntawm qhov kub thiab txias, ib qho hluav taws xob hluav taws xob tsim tawm hauv Circuit Court. Qhov loj ntawm lub zog no muaj feem xyuam rau cov khoom siv thiab qhov kub thiab txias sib txawv ntawm cov junctions. Los ntawm kev ntsuas lub zog electromotive, qhov ntsuas kub tuaj yeem suav tsis ncaj. Thermocouples muaj siab rhiab heev; 1℃qhov kub thiab txias hloov ua rau qhov tso zis voltage hloov ntawm kwv yees li 5-40 microvolts. Lawv cov qauv yog qhov yooj yim, tsis muaj qhov txav txav, ua rau lawv haum rau siab -kub, siab-siab, thiab corrosive ib puag ncig. Cov qauv tsim tawm tso cai rau lub sijhawm teb sai dua, tab sis kev saib xyuas yuav tsum tau them rau oxidation thiab corrosion ntawm cov hlau xaim.
2. Txoj Cai Ua Haujlwm ntawm Movable Thread-Mounted Probe-Type Platinum Resistance Thermometers
Platinum resistance thermometers yog raws li cov yam ntxwv uas cov hlau tsis kam hloov nrog qhov kub thiab txias. Lawv cov nqi tsis kam muaj qhov tsis zoo -txoj kev sib raug zoo nrog kub thiab yuav tsum tau suav nrog cov ntxhuav lossis cov qauv (piv txwv li, Pt100 muaj qhov tsis kam ntawm 100Ω ntawm 0 degree, thiab tus nqi kuj nce linearly nrog nce kub) los txiav txim qhov ntsuas kub. Platinum kuj thermometers muaj siab rhiab heev; 1℃qhov kub thiab txias hloov ua rau muaj kev hloov pauv tseem ceeb hauv cov nqi tiv thaiv. Lawv cov qauv yog qhov yooj yim, tsis muaj qhov txav txav, ua rau lawv haum rau kev ntsuas qhov tseeb hauv nruab nrab thiab qis kub (-200℃txog 600 degree), tab sis muaj zog sib nqus teb los yog cov neeg kho tshuab kev co yuav tsum zam kom tsis txhob cuam tshuam qhov ntsuas qhov tseeb. Cov xov xov txav txav tau tso cai rau kev ntsuas kev ua haujlwm ruaj khov txawm tias nyob hauv qhov chaw kub kub.
III. Kev Qhia Txog Tus Kheej
1. Kev tshuaj xyuas qhov muag
Raug Thermocouple: Lub taub hau feem ntau tsis muaj cov ntaub thaiv tiv thaiv, thiab ntsuas qhov kawg tau raug ncaj qha. Nws muaj ob txoj hlua hlau sib txawv welded ua ke, nrog cov hlau xaim ncaj qha mus rau qhov ntsuas nruab nrab.
Movable Thread-Mounted Probe-Type Platinum Resistance Thermometer: Lub taub hau feem ntau yog npog nrog lub raj hlau tiv thaiv, thiab sab hauv muaj qhov kub thiab txias -sensing lub ntsiab ua los ntawm lub qhov txhab platinum hlau. Cov xov xov txav txav tau raug ntsia rau ntawm qhov chaw ntawm cov khoom raug ntsuas, thiab lub thawv sib txuas yog siv los txuas rau sab nraud Circuit Court . 2. Txoj Kev Txuas
Exposed Thermocouple: Siv ob -kab hlau (zoo thiab tsis zoo), nrog rau lub thawv davhlau ya nyob twg cim "TC+" thiab "TC−". Cov hlau lead feem ntau yog liab (zoo) thiab dub / xiav (tsis zoo).
Threaded Probe-Type Platinum Resistance Thermometer: Siv peb lub-wire system (R1, R2, R3), nrog rau lub thawv davhlau ya nyob twg cim "R1", "R2", thiab "R3". Cov hlau lead feem ntau yog xim liab, dawb, thiab daj.
3. Kev ntsuas Multimeter
Raug Thermocouple: Tus nqi tiv thaiv tsawg heev, feem ntau tsuas yog ob peb ohms.
Threaded Probe-Type Platinum Resistance Thermometer: Tus nqi kuj yog kwv yees li 100 ohms ntawm chav tsev kub (Pt100).
IV. Daim ntawv thov Scenario txawv
1. Tshem tawm Thermocouple
Cov xwm txheej xav tau cov lus teb ceev ceev thiab kev sib cuag ncaj qha: Piv txwv li, hauv kev lag luam khoom noj lossis kev lag luam tshuaj, cov qauv tsim ua kom ntseeg tau tias qhov kev sojntsuam ncaj qha cuam tshuam qhov ntsuas kub nruab nrab, txhim kho kev ntsuas qhov tseeb thiab cov lus teb ceev.
Kev kub siab - ib puag ncig kub: Ua haujlwm ruaj khov hauv siab - ntsuas kub, haum rau siab - cov cuab yeej kub xws li reactors thiab cov kav dej.
2. Threaded Probe-Type Platinum Resistance Thermometer
Cov xwm txheej xav tau cov lus teb ceev ceev thiab nyob ze: Piv txwv li, hauv kev ua zaub mov lossis kev lag luam tshuaj, cov qauv tsim kom muaj kev sib cuag txaus ntawm qhov kev sojntsuam thiab cov khoom siv saum npoo, txhim kho kev ntsuas qhov tseeb thiab cov lus teb ceev.
Nruab nrab thiab qis- qhov kub thiab txias: Ua tau zoo nyob hauv tsev lossis qis- cov xwm txheej siab, xws li HVAC systems.
V. Cov lus qhia xaiv
1. Kev Xaiv Cov Thermocouple
Ib puag ncig tej yam kev mob: Siv nyob rau hauv scenarios yuav tsum tau ceev teb thiab ncaj qha kev sib cuag nrog lub nruab nrab yog ntsuas, tsis txhob muaj zog vibration los yog tej yam kev mob.
Cov kev xav tau ntawm kev txhim kho: Xaiv ib qho kev sojntsuam nrog qhov ntsuas qhov kawg uas haum rau cov khoom siv los xyuas kom muaj kev sib txuas ruaj ntseg.
2. Threaded Probe-Type Platinum Resistance Thermometer Xaiv
Cov kev xav tau ntawm kev txhim kho: Xaiv ib qho kev sojntsuam nrog cov lus qhia tshwj xeeb uas haum rau cov khoom siv los xyuas kom muaj kev sib txuas ruaj ntseg.
Ib puag ncig tej yam kev mob: Siv nyob rau hauv cov xwm txheej yuav tsum tau ntsuas meej thiab ceev teb nyob rau hauv nruab nrab thiab qis - qhov kub thiab txias ib puag ncig, tsis txhob muaj zog magnetic teb los yog mechanical vibration ib puag ncig. VI. Summary thiab Complementary Relationship
Qhov sib txawv tseem ceeb ntawm cov thermocouples raug thiab txav tau threaded sojntsuam- hom platinum tiv thaiv tus pas ntsuas kub nyob rau hauv lawv cov qauv kev ua haujlwm thiab qhov chaw siv tau: Cov thermocouples raug siv los ntsuas qhov ntsuas kub hloov pauv, tsim nyog rau cov xwm txheej xav tau kev teb sai thiab kev sib cuag ncaj qha, thiab ua tau zoo tshwj xeeb hauv qhov kub thiab txias; {1} movable threaded sojntsuam- hom platinum tiv thaiv tus pas ntsuas kub siv cov kev hloov pauv los muab kev ntsuas meej hauv nruab nrab thiab qis- qhov kub thiab txias, haum rau cov xwm txheej xav tau cov lus teb ceev ceev thiab nyob ze, thiab nthuav tawm kev ua haujlwm ruaj khov, tshwj xeeb tshaj yog nyob rau hauv siab - kub lossis vibrating ib puag ncig. Thaum xaiv ib lub cuab yeej, nws yog ib qho tsim nyog yuav tsum tau ua kom paub meej cov ntsiab lus tseem ceeb: cov thermocouples nthuav tawm tsom rau cov lus teb ceev thiab ntsuas qhov tseeb nyob rau hauv siab - qhov kub thiab txias, thaum txav tau threaded sojntsuam - hom platinum tiv thaiv tus pas ntsuas kub tsom rau cov lus teb ceev thiab ntsuas qhov tseeb hauv nruab nrab thiab qis - qhov kub thiab txias. Ua haujlwm ua ke, lawv tuaj yeem ua tau raws li qhov ntsuas kub ntawm qhov xav tau ntawm cov xwm txheej sib txawv.
