Lub hauv paus ntawm ThermocoOple thiab cov qauv

Thermocouples yog ib qho ntawm feem ntau siv cov ntsuas kub thiab txias feem ntau yog kuaj pom hauv kev lag luam. Nws cov txiaj ntsig yog:
① ntsuas siab ntsuas qhov yog. Vim tias Thermocouple yog nyob rau hauv kev sib cuag ncaj qha nrog cov khoom raug ntsuas, nws tsis cuam tshuam los ntawm ib puag ncig nruab nrab.
Tsis tshua muaj kev ntsuas ntau yam. Feem ntau siv thermocouples muaj peev xwm ntsuas tsis tu ncua los ntawm {}}}} +2800 degree (xws li tungsten-rhenium).
Tus qauv yooj yim thiab kev siv yooj yim. Thermocouples feem ntau muaj ntawm ob lub xov hlau sib txawv, thiab tsis txwv los ntawm qhov loj me thiab txiav. Muaj lub tes tsho tiv thaiv sab nraud, uas yog qhov yooj yim siv.
1. Cov txheej txheem yooj yim ntawm cov ntsuas cua sov ntawm thermocouple
Weld ob tug cwj pwm lossis semiconductors A thiab B ntawm cov khoom sib txawv los ua lub voj kaw. Thaum muaj qhov sib txawv kub ntawm ob qho ntsiab lus txuas 1 thiab 2 ntawm tus neeg A thiab B, lub zog hluav taws xob yog tsim los ntawm ob, yog li ib qho tam sim no yog tsim nyob rau hauv lub voj. Qhov tshwm sim no hu ua cov nyhuv thermoelectric nyhuv. Thermocouples ua haujlwm los ntawm kev siv cov nyhuv no.
2. Hom thiab cov qauv qauv ntawm thermocouples
(1) Hom ntawm thermoco
Cov thermocouples nquag muab faib ua ob pawg: qauv thermocotres thiab tsis muaj thermoco zog. Cov txheej txheem thermocoples siv rau kev xa cov thermocoupric uas nws lub peev xwm thermoelectric, kev sib raug zoo ntawm kev kub ntxhov, thiab kev sib txawv ntawm cov qauv ntsuas hluav taws xob tau txhais los ntawm cov qauv kev kawm hauv tebchaws. Lawv tau txuam cov twj paj rau kev xaiv. Tsis yog-txheem thermocouples tsis zoo raws li qauv thermocouples nyob rau hauv cov nqe lus ntawm daim ntawv thov lossis naj npawb muaj cov nplai sib txawv. Lawv feem ntau yog siv rau kev ntsuas hauv qee qhov chaw tshwj xeeb. Qauv Ntsuas Thermoco
Txij thaum Lub Ib Hlis 1, 1988, kuv lub teb chaws tau tsim txhua yam thermocouples thiab thermal Thermocouples, thiab T (IE, cov lej teev) yog kuv lub teb chaws lub teb chaws sib koom tes thermocouples.
(2) Tus qauv ntawm thermocouples kom ntseeg tau tias cov thermocouple ua hauj lwm ntseeg tau thiab ruaj khov, cov cai hauv qab no yog laij rau ntawm nws cov qauv:
① vuam ntawm ob thermocouples uas ua rau qhov thermocouple yuav tsum yog khov kho;
② ob thermocouples yuav tsum muaj kev sib xyaw zoo los ntawm ib leeg los tiv thaiv luv luv circuits;
Cov kev sib txuas ntawm cov xaim hluav taws xob thiab qhov kawg ntawm lub thermocouple yuav tsum yooj yim thiab ntseeg tau;
④ Tes Tsho Tiv Thaiv yuav tsum muaj peev xwm ua kom paub tseeb tias thermocouple yog cais tawm ntawm qhov tsis zoo.
3. Nyiaj tau txias ntawm qhov txias txias ntawm thermocouple
Txij li cov ntaub ntawv ntawm thermocouples feem ntau muaj nqis (tshwj xeeb yog siv rau cov chav ntsuas kub thiab siv tau los ua kom muaj qhov kub thiab txias Nws yuav tsum tau taw qhia tias lub luag haujlwm ntawm Thermocouple them rau qhov txias kawg ntawm thermocouple mus rau lub ntsuas lub davhlau ya nyob hauv chav tswj hwm. Nws tus kheej tsis tuaj yeem tshem tawm cov cawv ntawm qhov txias txias hloov ntawm qhov ntsuas kub thiab tsis ua lub luag haujlwm them nyiaj. Yog li no, lwm txoj kev hloov kho yog xav tau los them rau cov cawv rau qhov txias txias
Thaum siv cov khoom them nyiaj xaim hluav taws xob Thermocouple, nws yog ib qho tsim nyog los them rau qhov sib txuam ntawm cov qauv, thiab ntsuas kub ntawm kev sib txuas xaus ntawm cov xaim xaim thiab thermocouple tsis tau tshaj 100 degree.
Piv txwv li: S-hom Thermocouple) Platinum-rhodium 10- platinum thermocouple
Platinum-rhodium-Rhodium 10- platinum thermocouple (s-hom thermocouple) yog ib qho khoom hlau thermocouple. Lub taub hlau xaim yog teev raws li 0. 5mm, thiab cov kev sib txawv yog}. 02mm. Cov nominal tshuaj muaj pes tsawg leeg ntawm nws qhov zoo electrode (SP) yog platinum-rhodium alloy, uas muaj 10% rho tawm thiab 90% platinum. Qhov tsis zoo electrode (sn) yog ntshiab platinum, yog li nws yog feem ntau hu ua ib platinum-rhodium-xabdium thermocouple. Qhov ntau tshaj plaws thov qhov kub thiab txias ntawm qhov thermocouple yog 1300 degree, thiab qhov siab tshaj plaws luv luv siv lub sijhawm ntsuas kub yog 1600 degree.
S-hom thermocouple muaj qhov siab tshaj plaws, ruaj khov, ntau ntau ntau, thiab ntev kev pab lub neej nyob rau hauv lub thermocouple koob. Nws muaj cov khoom siv lub cev zoo thiab tshuaj lom neeg, thermoelectric stability thiab anti-oxidation kev ua tau zoo ntawm tsawg kub, thiab yog qhov haum rau oxidizing thiab inert atmospheres. Vim tias S-thermororoup muaj cov khoom siv thermoro excellentensive,, S-hom thermorochoulles uas tau raws li cov twj ntsuas kub tau ntev raws li cov nplai txuas ntxiv. Txawm hais tias "nws {{-90" cov lus qhuab qhia uas lawv yuav tseem siv tau rau kev ua kom muaj qhov ntsuas kub.