PR1231/PR1232 Tus Qauv Platinum-10% Rhodium/Platium Thermocouple
PR1231/PR1232 Tus Qauv Platinum-10% Rhodium/Platium Thermocouple
Ntu 1 Txheej Txheem Cej Luam
Cov thawj thiab qib thib ob tus qauv platinum-iridium 10-platinum thermocouples uas muaj qhov tseeb siab zoo lub cev thiab tshuaj lom neeg, zoo oxidation tsis kam ntawm qhov kub siab, zoo stability thiab reproducibility ntawm thermoelectromotive force. Yog li ntawd, nws yog siv ua tus qauv ntsuas ntsuas hauv (419.527 ~ 1084.62) ° C, nws kuj yog siv los ntsuas qhov kub thiab txias thiab ntsuas qhov tseeb hauv qhov kub thiab txias.
Tshooj 2 Cov Kev Tsis Txaus Siab
| Cov ntsuas parameter | Qib ib platinum-iridium 10-platinum thermocouples | Qib ob platinum-iridium 10-platinum thermocouples |
| Zoo thiab tsis zoo | Qhov zoo yog platinum-rhodium alloy (platinum 90% rhodium 10%), qhov tsis zoo yog platinum ntshiab | |
| hluav taws xob | Ob lub electrodes txoj kab uas hla yog 0.5-0.015mm ntev tsis tsawg dua 1000 hli | |
| Qhov yuav tsum tau ua ntawm lub zog thermal electromotive force Kev ntsuas qhov kub ntawm qhov sib txuas yog ntawm Cu point (1084.62 ℃) Al point (660.323 ℃) Zn point (419.527 ℃) thiab qhov kub ntawm qhov sib txuas yog 0 ℃ | E(tCu)=10.575±0.015mVE(tAl)=5.860+0.37 [E(t)Cu)-10.575] ± 0.005mVE (tZn)=3.447+0.18 [E(t)Cu)-10.575] ± 0.005mV | |
| Kev ruaj khov ntawm lub zog thermo-electromotive | 3μV | 5μV |
| Kev hloov pauv txhua xyoo Thermo-electromotive force ntawm Cu point (1084.62 ℃) | ≦5μV | ≦10μV |
| Kev Ua Haujlwm Kub Ntau | 300 ~ 1100 ℃ | |
| Lub tes tsho rwb thaiv tsev | Ob lub qhov porcelain raj lossis corundum rajOuter diameter (3 ~ 4) hli, qhov diameter (0.8 ~ 1.0) hli, ntev (500 ~ 550) hli | |
Ntu 3Cov Lus Qhia Txog Daim Ntawv Thov
Cov txheej txheem platinum-iridium 10-platinum thermocouples yuav tsum ua raws li lub teb chaws xa khoom, Cov txheej txheem pov thawj hauv teb chaws yuav tsum tau siv. Cov txheej txheem platinum-iridium 10-platinum thermocouples qib ib tuaj yeem siv los ntsuas qib ob, qib Ⅰ, qib Ⅱ platinum-iridium 10-platinum thermocouples thiab qib Ⅰ cov hlau thermocouples; Qib ob platinum-iridium 10-platinum thermocouples tsuas yog siv los ntsuas qib Ⅱ cov hlau thermocouples
| Tus lej pov thawj hauv tebchaws | Lub npe pov thawj hauv tebchaws |
| JJG75-1995 | tus qauv platinum-iridium 10-platinum thermocouples calibration specification |
| JJG141-2013 | Cov lus qhia txog kev ntsuas cov thermocouples ua haujlwm ntawm cov hlau muaj nqis |
| JJF1637-2017 | cov lus qhia txog kev ntsuas kub thermocouple hauv paus hlau |
Tshooj 4 Kev Saib Xyuas thiab Kev Khaws Cia
1. Lub sijhawm ntsuas qhov kub thiab txias yog 1 xyoos, thiab txhua xyoo lub thermocouple txheem yuav tsum tau ntsuas los ntawm lub chaw haujlwm metrology.
2. Yuav tsum tau ua qhov kev saib xyuas calibration raws li qhov siv.
3. Qhov chaw ua haujlwm ntawm tus qauv thermocouple yuav tsum huv si kom tsis txhob muaj kuab paug rau tus qauv thermocouple.
4. Tus qauv thermocouple yuav tsum tau muab tso rau hauv qhov chaw uas tsis muaj kuab paug thiab tiv thaiv los ntawm kev ntxhov siab ntawm lub tshuab.
1. Lub raj rwb thaiv tsev siv tsis tau rau kev ci kub heev. Lub raj rwb thaiv tsev qub siv tom qab ntxuav thiab ci kub heev.
2. Lub raj rwb thaiv tsev tsis quav ntsej txog qhov zoo thiab qhov tsis zoo, uas yuav ua rau lub platinum ncej raug kuab paug thiab tus nqi thermoelectric potential txo qis.
3. Randomly lub raj thermocouple rwb thaiv tsev txheem nrog cov hlau pheej yig yuav ua rau lub thermocouple txheem paug, thiab lub raj hlau tiv thaiv yuav tsum tau siv rau kev txheeb xyuas ntawm lub hauv paus hlau thermocouple.
4. Lub thermocouple txheem tsis tuaj yeem muab tso rau hauv lub cub tawg tswj qhov kub thiab txias tam sim ntawd, thiab tsis tuaj yeem coj tawm ntawm lub cub tawg tswj qhov kub thiab txias. Qhov kub thiab txias tam sim ntawd yuav cuam tshuam rau kev ua haujlwm thermoelectric.
5. Raws li qhov xwm txheej ib txwm muaj, lub cub tawg pov thawj rau lub thermocouple hlau muaj nqis thiab lub thermocouple hlau hauv paus yuav tsum tau sib txawv; yog tias nws tsis yooj yim sua, lub raj ceramic huv si lossis lub raj corundum (txoj kab uas hla li 15 hli) yuav tsum tau ntxig rau hauv lub raj cua sov rau kev tiv thaiv cov hlau muaj nqis Thermocouples thiab cov thermocouples txheem los ntawm cov hlau hauv paus thermocouple kev ua qias tuaj.
