Lub hauv paus ntsiab lus thiab cov ntawv thov ntawm kub sensor

Lub hauv paus ntsiab lus thiab cov ntawv thov ntawm cov ntsuas kub: Ua ntej, daim ntawv thov txoj ntsiab cai ntawm thermocouples. Thermocouples yog ib qho ntawm cov feem ntau siv cov ntsuas kub uas siv tau kub nyob hauv kev lag luam nws muaj qhov zoo ntawm ntsuas siab yog. Vim muaj kev sib chwv nrog cov khoom ntsuas ntsuas, thermocouples tsis cuam tshuam los ntawm kev ntsuas dav nruab nrab. Typical thermocouples can measure continuously from {{0}}~+1600 degree , while specific special thermocouples can measure up to -269 degree (such as iron nickel chromium alloy) and+2800 degree (such as tungsten rhenium) The structure is simple and easy to use. Thermocouples feem ntau muaj ntawm ob hom xov hlau, thiab tsis txwv los ntawm qhov loj me lossis qhib. Lawv muaj kev tiv thaiv kev tiv thaiv sab nraud, ua rau lawv siv tau yooj yim. 1. Tus txheej txheem yooj yim ntawm thermocouple kub ntsuas yog kom weld ob yam khoom sib txawv ntawm cov duab lossis b, raws li qhia hauv daim duab {5}}, ua ib qho kev kaw Circuit Court. Thaum muaj qhov sib txawv kub ntawm ob qho ntsiab lus txuas 1 thiab 2 ntawm kev ua haujlwm ntawm lub zog hluav taws xob yog tsim los ntawm lawv, uas ua rau lub Circuitficive hauv Circuit Court, uas yog hu ua cov nyhuv thermoelectric nyhuv. Thermocoples siv cov nyhuv no ua haujlwm. 2. Hom thiab cov qauv ntawm thermocouples (1) hom thermocouples feem ntau muab faib ua ob hom: qauv thermorochples thiab cov qauv thermococon. Tus txheem thermocouple siv yog hais txog thermocouple uas tau teev nyob rau hauv lub teb chaws tus qauv rau kev sib raug zoo ntawm thermoelectric muaj peev xwm thiab kub, thiab muaj kev sib koom ua ke ntsuas, thiab muaj cov khoom sib txuam. Tsis yog qauv thermocoen tsis haum rau siv li thermoounles nrog cov qauv sib txawv lossis cov xaj ntawm qhov ntau, thiab feem ntau tsis muaj kev sib koom ua ke. Lawv feem ntau yog siv rau kev ntsuas hauv cov xwm txheej tshwj xeeb. Qauv Kho Mob Thermoco: txij li Lub Ib Hlis 1, 1988, thermal resistances nyob rau hauv Suav teb tau tsim tawm raws li IEC cov qauv thoob ntiaj teb. Xya lub zog thermoco, uas yog s, e, e, r, thiab t, tau raug xaiv los ua ke tsim hom thermocouples hauv Suav teb. (2) Txhawm rau kom ntseeg tau tias qhov kev coj ua tau zoo ntawm lub thermocoelple yuav tsum tau yooj yim thiab txhim khu kev qha tus nqi ntsuas kub ntawm ib tug Thermocouple, vim yog qhov tseeb tias cov khoom ntawm Thermocrouple feem ntau yog qhov tseem ceeb (tshwj xeeb yog kev ntsuas kub) Txhawm rau kom txuag tau cov khoom ntawm thermocouple thiab txo cov nqi hlau feem ntau yog siv los txuas qhov txias txias (pub dawb) ntawm cov ntsuas ntsuas kub. Nws yuav tsum tau taw qhia tias kev them nyiaj hlau thermocouple rau ntawm chav ntsuas kub yog tsuas yog txav qhov txias ntawm qhov txias txias ntawm kev ntsuas kub nyob rau thaum ntsuas kub, thiab tsis tuaj yeem them nyiaj. Yog li ntawd, txhawm rau kom them nyiaj rau qhov txias txias t {15}}}}}}}}}}}}}} & lwm txoj kev ntsuas ntsuas ntsuas ntawm 0 degree. Thaum siv Thermocouple them nyiaj, nws yog ib qho tseem ceeb kom paub meej nyob rau hauv daim ntawv thiab tsis txhob muaj kev yuam kev polarity. Qhov ntsuas kub ntawm kev sib txuas xaus ntawm cov xaim hluav taws xob thiab thermocouple yuav tsum tsis tshaj 100 degree. 2, Daim Ntawv Thov Kev Siv ntawm thermal ua hauj lwm yog tias thermal tsis yog feem ntau siv ntes ntsuas hauv nruab nrab thiab ntsuas kub. Nws cov cwj pwm tseem ceeb yog qhov ntsuas siab yog qhov tseeb thiab ruaj khov ua haujlwm. Ntawm lawv, platinum muaj qhov siab tshaj tawm kev ntsuas thiab tau siv dav tsis yog nyob rau hauv kev lag luam kub ntsuas, tab sis kuj nyob rau hauv cov kev ntsuas cov twj. 1. Qhov ntsuas kub ntsuas lub hauv paus ntsiab lus thiab cov khoom siv ntawm qhov ntsuas kub ntsuas yog nyob ntawm tus yam ntxwv uas cov hlau tsis kam ntawm cov hlau ua haujlwm nce nrog kub. Tus mob ua haujlwm yog yuav luag tag nrho ua los ntawm cov ntaub ntawv ntshiab hlau, nrog platinum thiab tooj liab tau siv ntau tshaj plaws tam sim no. Ib qho ntxiv, cov ntaub ntawv xws li cov nruab nrab, npib tsib xee, manganese, thiab rhodium kuj tseem raug siv los tsim cov cua sov. 2. Cov qauv thiab cov yam ntxwv ntawm thermal kuj sensors (resistors) feem ntau siv hauv kev lag luam tau qhia hauv Table {{}. Raws li cov ntsiab lus ntsuas kub ntawm cov ntsuas kub ntsuas ntsuas qhov ntsuas ntsuas kub tau ntsuas ntawm qhov ntsuas kub ntsuas ntawm qhov ntsuas kub ntsuas. Yog li no, cov kev hloov pauv ntawm cov kev tawm tsam ntawm ntau yam kev ua xws li cov ua ntawm qhov ntsuas kub ntsuas tau muaj qhov cuam tshuam rau kev ntsuas kub. (2) txaj tiv thaiv no thermal resistor yog lub cev ruaj khov uas sib txuas cov khoom kub (ua haujlwm, rwb thaiv tsev cov ntaub ntawv, raws li qhia hauv daim duab {22}}. Lub taub piv yog feem ntau PHI; 2 ~ φ 8mm, qhov me me ua tiav tau; Hli. Piv nrog dog dig thermal resistors, nws muaj qhov zoo ntawm cov ntim me me, tsis muaj huab cua sab hauv, thiab ntsuas me me rau hauv thermal inertia. Nws muaj kev ua tau zoo ua tau zoo, kev co ua hauj, thiab kev tsis kam. Nws tuaj yeem khoov thiab yog ib qho yooj yim rau nruab. ④ Nws muaj lub neej kev pabcuam ntev ntev. (3) Lub ntsej muag kawg thermal kuj thiab qhov kub kub lub caij yog qhov txhab nrog kho cov hlau tsis zoo, uas yog nyob ze rau lub ntsej muag kawg ntawm tus pas ntsuas kub kawg. Nws cov qauv muaj qhia hauv daim duab 2-1-8. Piv nrog cov axial thermal resistors, qhov no tuaj yeem yog qhov tseeb thiab nrawm rau ntsuas lub ntsej muag thaum kawg ntawm cov hlau thiab lwm yam haujlwm ua haujlwm. (4) Kev tawg-pov thawj thermal cuam tshuam nrog cov roj tawg ntawm lub taub hau tshwj xeeb lub thawv, thiab tsis tawg tshwm sim ntawm qhov chaw tsim khoom. Qhov tawg cov pov thawj thermal tuaj yeem siv rau kev ntsuas kub hauv thaj chaw nrog kev tawg cov xwm txheej xws li Bla ~ B3C theem. 3. Qhov ntsuas kub ntsuas cov kab ke uas suav daws cov xov tooj kub uas tsis kam tiv thaiv, cov xov tooj nrog ntsuas kub ntawm qhov ntsuas kub ntsuas thiab ntsuas cov zaub yuav tsum sib xws. Txhawm rau tshem tawm cov kev cuam tshuam ntawm kev hloov pauv ntawm cov xov hlau tsis kam sib txuas, nws yog qhov tsim nyog los siv peb txoj kev sib txuas hlau. Thov saib Tshooj 3 ntawm tsab xov xwm no rau cov ntsiab lus tshwj xeeb. (2) sheathere resistor yog lub cev ruaj khov uas sib txuas cov khoom kub (ua haujlwm, rwb thaiv tsev cov ntaub ntawv, raws li qhia hauv daim duab {4}}. Nws cov hlua hauv lub nroog feem ntau yog PHI; 2 ~ φ 8mm, qhov me me ua tiav tau; Piv nrog dog dig thermal resistors, nws muaj qhov zoo ntawm qhov loj me me, tsis muaj huab cua sab hauv, thiab ntsuas kev ntsuas sab hauv hauv thermal inertia. Nws muaj kev ua tau zoo zoo, kev co ua kom tau, cuam tshuam nws yooj yim los khoov thiab nruab rau lub neej ntev. (3) Lub ntsej muag kawg thermal kuj thiab qhov kub kub lub caij yog qhov txhab nrog kho cov hlau tsis zoo, uas yog nyob ze rau lub ntsej muag kawg ntawm tus pas ntsuas kub kawg. Nws cov qauv muaj nyob hauv daim duab 2-1-8. Piv nrog cov axial thermal resistors, qhov no tuaj yeem yog qhov tseeb thiab nrawm rau ntsuas lub ntsej muag thaum kawg ntawm cov hlau thiab lwm yam haujlwm ua haujlwm. (4) Kev tawg-pov thawj cov cua nab kuab cua tshuab hluav taws xob raug kho los ntawm ib lub thawv tshwj xeeb lub thawv. Txhawm rau kom cov roj sib xyaw tawg sab hauv lub plhaub kom muaj kev cuam tshuam los ntawm cov txim taws lossis arcs, hloov qhov ntev ntawm cov hlau uas muaj zog muaj tus nqi tiv taus. Yog li ntawd, nws yog qhov zoo dua los hloov cov tshuaj tiv thaiv kev tawm tsam nrog ib qho tshiab. Thaum siv vuam kho, nws yuav tsum tau txheeb xyuas raws li tsim nyog tom qab vuam ua ntej siv.