Qhov sib txawv thiab ua haujlwm ntawm kev xaiv thermocouples thiab thermal resistances hauv cov kub hloov chaw

Thermocouples feem ntau siv rau ntsuas nruab nrab rau cov kub thiab txias, thaum thermal kuj yog siv rau kev ntsuas cov kub tsawg. Tshwj xeeb, thermocoples yog ib qho ntawm cov feem ntau siv cov kev ntsuas kub feem ntau tau kuaj kom haum rau hauv kev lag luam. Tus ua hauj lwm ua haujlwm ntawm thermocouples yog raws cov nyhuv pom ntawm cov hluav taws kub uas tau txuas nrog cov khoom sib txawv ntawm cov khoom siv sib txawv nws muaj qhov zoo ntawm ntsuas siab qhov tseeb. Vim muaj kev sib chwv nrog cov khoom ntsuas ntsuas, thermocouples tsis cuam tshuam los ntawm kev ntsuas dav nruab nrab. Raug thermocoples tuaj yeem ntsuas tsis tu ncua los ntawm {{{{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} degree (xws li siv tau yooj yim thiab yooj yim siv. 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 cov khoom sib txawv ntawm cov khoom lossis semiconductors a thiab b los 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}}}}}}}}}}}}}} Kev ntsuas kub ntawm {29}} 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 1 {{{{33} {33} degree. Qhov ntsuas kub ntsuas ntsuas feem ntau yog siv cov detectors feem ntau hauv nruab nrab thiab thaj chaw kub tsawg. 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 cov ntsiab cai thiab cov khoom siv ntawm cov khoom siv kub ntsuas yog raws cov yam ntxwv tsis kam ntawm cov neeg sib tw ntawm kev ntsuas kub. Thermal yuav yog yuav luag los ntawm cov ntaub ntawv ntshiab hlau, nrog platinum thiab tooj liab tau siv ntau tshaj plaws tam sim no. Ntxiv rau, cov ntaub ntawv xws li Nickel, Mangelese, thiab rhodium, thiab rho tawm tau siv los tsim cov khoom thermal. 2. Hom ntsuas kub ntsuas: 1) Qhov ntsuas kub tsis txaus ntseeg raws li qhov ntsuas kub ntsuas ntsuas ntawm qhov kev hloov pauv ntawm cov nqi tiv thaiv ntawm qhov ntsuas kub ua kom tiv taus qhov ntsuas kub. Yog li, kev hloov pauv ntawm kev tawm tsam ntawm ntau yam kev ua xws li ntsuas kub ntsuas tiv thaiv tuaj yeem cuam tshuam rau kev ntsuas kub. 2) sheathere resistor yog lub cev loj heev uas tau tsim ntawm qhov kub thiab txias (resistors), xaim, rwb thaiv tsev cov ntaub ntawv. Nws cov hlua hauv lub nroog feem ntau yog PHI; {{2 {{{0}} φ 8mm, qhov loj me uas loj tshaj; 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) Kawg lub ntsej muag thermal kuj. Kawg lub ntsej muag thermal Kuj tseem pom lub ntsiab yog qhov txhab nrog kho cov hlau tshwj xeeb thiab tightly hu rau lub ntsej muag kawg ntawm tus pas ntsuas kub kawg. 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) tawg pov thawj thermoelectric teeb meem. Lub rwb thaiv tsev cov resistor yog muab ntim rau hauv cov qauv tshwj xeeb lub davhlauinal box los tiv thaiv cov roj tawg lossis tsis muaj qhov tawg ntawm cov chaw tsim khoom. 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. Hais txog qhov ntsuas kub kub, nws tau txhais ua qhov ntsuas kub thiab txias rau hauv tus qauv ntsuas kub thiab txias rau cov teeb meem tam sim no los ntawm kev hloov pauv ntawm Circuit Court. 2. Kev faib tawm ntawm qhov kub ntawm cov teeb meem hluav taws xob yog raws cov teeb liab interface, uas tuaj yeem muab faib ua ob qho tib si sib xyaw, lossis lwm yam khoom siv cua, kev sojntsuam cua, sojntsuam hom, Sensors thiab hloov dua tshiab cov txheej txheem ntawm cov ntsiab lus yooj yim ntawm kev siv cov khoom siv kub thiab txias rau kev kuaj kub. Kub Sensors feem ntau yog thermal resistors, cov cua nab, sensors nrog hloov mus rau cov teeb liab tam sim no, thiab lwm yam. 4. Lub ntsiab kev tsis ntsuas ntawm cov khoom kub txias yog ntsuas qhov ntsuas kub, ntsuas qhov ntsuas kub thiab ntsuas cov ntsuas kub tau qhab nia. Raws li cov qauv thiab teeb tsa daim ntawv xa tawm, ntsuas kev ntsuas kub, ntsuas tau ntau yam ntawm cov tshuab xa tawm kub tuaj yeem xa mus rau hom ntsuas kub thiab siv tau. Raws li cov ntaub ntawv raug xaiv tau xaiv los ntawm kev siv kub ntsuas kub, thiab xaiv lub teeb liab interor,}} v,}!, Lossis digital / zaus interfaces thiab lwm yam interfaces. Ua haujlwm ua haujlwm: Thermal ua hauj PT100: Los ntawm kev hnov ​​kub hloov pauv, cov tsis kam hloov cov nqi. Qhov txias txias: 1. Xam cov ntsuas kub tam sim no los ntawm kev lees paub qhov sib txawv ntawm kev tiv thaiv muaj nuj nqis. 2 Ntxiv xam tus qauv txheem sib xws (4-20 m}} m}}}}}}}}}}} ntawm -19. 9 Qib C thiab 20ma. Los ntawm kev lees paub cov zis tam sim no ntawm 600.0 Degree C transmitter, qhov ntsuas kub tam sim no tuaj yeem txiav txim siab