Lub hauv paus ntawm ThermocoOple thiab cov qauv

Thermocouple yog ib qho ntawm feem ntau siv cov ntsuas kub thiab txias tshaj plaws 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 ntsuas tau ntsuas, nws tsis cuam tshuam los ntawm nruab nrab hauv 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).

Cov qauv yooj yim thiab siv tau yooj yim. Thermocouples feem ntau muaj ntawm ob lub xov hlau sib txawv, thiab tsis txwv los ntawm qhov loj me thiab qhib. Muaj lub tes tsho tiv thaiv sab nraud, uas yog qhov yooj yim siv.

Thaum siv Thermocouple them nyiaj, koj yuav tsum them

Piv txwv: S-hom thermocouple) platinum rhodium 10- platinum thermocouple

Platinum rhodium {{{0} platinokum thermocouple (s-hom thermocouple) yog ib qho khoom hlau thermocouple. Lub taub hlau voos yog teev raws li 0.5mm, nrog kev sib txawv ntawm -0. 02mm. Cov nominal tshuaj muaj pes tsawg leeg ntawm 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. Lub sijhawm ntev ua haujlwm kub ntawm no thermocouple yog 1300 degree, thiab lub sijhawm luv-ua haujlwm kub yog 1600 degree.

S-hom thermocouple muaj qhov zoo ntawm qhov tseeb tshaj plaws, qhov ntsuas tau zoo tshaj plaws, kev pabcuam siab ntev heev, thiab lub neej ntev nyob rau hauv thermocouple koob. Nws muaj cov khoom siv lub cev zoo thiab tshuaj lom neeg, zoo thermoelectric muaj peev xwm ruaj khov thiab zoo oxidation tiv thaiv nyob rau ntawm cov kub, thiab yog qhov haum rau oxidizing thiab inert atmospheres. Vim tias S-hom thermocouple muaj kev ua tau zoo heev thiab ua raws li cov ntsuas kub thoob ntiaj teb, nws tau siv ntev li kev cuam tshuam cov twj paj nruag rau cov ntsuas kub hauv ntiaj teb. Txawm hais tias "nws {-90" cov ceg ntoo uas nws yuav tsis siv rau qhov s-s-internal thermohopuple (CCT)

1. Cov txheej txheem yooj yim ntawm cov ntsuas cua sov ntawm thermocouple

Weld ob tug cwj pwm lossis semiconductors a thiab b ua los ntawm cov khoom sib txawv ua ke los ua lub voj kaw. Thaum muaj qhov sib txawv kub ntawm ob qho ntsiab lus txuas 1 thiab 2 ntawm kev coj ua A thiab B, yog li sib txuam ntawm ob, yog li sib sau ua ib qho loj ntawm 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 txheej txheem tsim ntawm thermocouples

(1) Hom ntawm thermoco

Cov thermocouples nquag muab faib ua ob pawg: qauv thermocotres thiab tsis muaj thermoco zog. Tus txheem thermocouple yog hais txog qhov thermocouple uas cov qauv hauv ntiaj teb stipulates muaj peev xwm ntawm nws thermoeltric muaj peev xwm thiab kub, thiab muaj kev sib koom ua ke ntsuas. Nws muaj cov khoom sib txuam tso saib rau kev xaiv. Tsis yog-txheem thermocoterles yog qis dua rau cov thermocouples nyob rau hauv cov nqe lus ntawm kev siv ntau yam lossis feem ntau tsis muaj kev sib koom ua ke. Lawv feem ntau yog siv rau kev ntsuas hauv qee lub sijhawm tshwj xeeb. Qauv Ntsuas Thermoco

Txij thaum Lub Ib Hlis 1, 1988, txhua qhov thermocoples thiab thermal cuam tshuam hauv kuv lub teb chaws tau tsim tawm raws li IEC cov lej thoob ntiaj teb), tau raug xaiv los ua kuv lub teb chaws txoj kev sib koom ua ke thermocouples.

(2) Cov qauv thermocouple kom ntseeg tau tias cov thermocouple ua hauj lwm ntseeg tau thiab ruaj khov, cov txheej txheem xav tau rau nws muaj raws li hauv qab no:

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 ua kom paub meej tias Thermocouple yog cais tawm los ntawm kev phom sij.

3. Nyiaj tau txias ntawm qhov txias txias ntawm thermocouple

Txij li cov ntaub ntawv ntawm thermocouples feem ntau kim (tshwj xeeb yog siv los txuas rau chav ntsuas kub thiab muaj qhov ntsuas kub nyob rau hauv cov ntsuas kub thiab txias rau qhov ntsuas kub. Nws yuav tsum tau taw qhia tias lub luag haujlwm ntawm cov ntawv them nyiaj kub feem ntau, yog li qhov txias txias ntawm thermocouple txav mus rau qhov ntsuas davhlau ya nyob hauv chav tswj. Nws 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 ntawd, lwm txoj kev kho yuav tsum tau them rau cov cawv uas muaj qhov kub txias txias kawg