Mefuta e Fapaneng ea Chromel Alumel Bare Wire bakeng sa Sensor ea Mocheso oa Mofuta oa K
TYPE K (CHROMEL vs ALUMEL) e sebelisoa ho oxidizing, inert kapa omeletseng ho fokotsa moea. Ho pepesetsoa vacuum ka nako e khuts'oane feela. E tlameha ho sireletsoa moeeng oa sebabole le oxidizing hanyane. E ka tšeptjoa ebile e nepahetse mochesong o phahameng.
1.Lik'hemik'haleCboipelaetso
Lintho tse bonahalang | Sebopeho sa lik'hemik'hale (%) | ||||
Ni | Cr | Si | Mn | Al | |
KP(Chromel) | 90 | 10 | |||
KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 |
2.Thepa ea 'mele le thepa ea Mechnical
Lintho tse bonahalang | Boima ba 'mele(g/cm3) | Sebaka se qhibilihangºC) | Tensile Strength(Mpa) | Ho hanyetsa molumo (μΩ.cm) | Sekhahla sa bolelele (%) |
KP(Chromel) | 8.5 | 1427 | > 490 | 70.6(20ºC) | >10 |
KN(Alumel) | 8.6 | 1399 | >390 | 29.4(20ºC) | >15 |
3.Boemo ba boleng ba EMF ka mocheso o fapaneng
Lintho tse bonahalang | Boleng ba EMF Vs Pt(μV) | |||||
100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC | |
KP(Chromel) | 2816-2896 | 5938~6018 | 9298~9378 | 12729~12821 | 16156~16266 | 19532–19676 |
KN(Alumel) | 1218~1262 | 2140~2180 | 2849-2893 | 3600~3644 | 4403~4463 | 5271~5331 |
Boleng ba EMF Vs Pt(μV) | ||||
700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC |
22845~22999 | 26064~26246 | 29223~29411 | 32313~32525 | 35336~35548 |
6167~6247 | 7080~7160 | 7959~8059 | 8807~8907 | 9617~9737 |
4.Mofuta, moralo le mofuta oa li-thermocouples
Mofuta | Khethollo | Thermocouple | Thermocouple Kereiti ID |
SC le RC | Copper-copper nickel 0,6 e lefshoa ho lefella loto | Platonic-rhodium 10-platinum Thermocouple | S le R |
Platonic-rhodium 13-platinum thermocouple | |||
KCA | Nickel ea tšepe ea koporo 22 e Felletse ka Matšeliso Ketapele | Nickel-chromium nickel thermocouple | K |
KCB | Iron-copper nickel 40 e buselitse matšeliso etella pele | ||
KX | Nickel-chromium 10-nickel 3 e telele ho lefella Moetapele / thapo e lefang | ||
NC | Iron-copper nickel 18 e ile ea lefella loto e lefang | Nickel-chromium silicon-nickel thermocouple | N |
NX | Nickel-chromium 14 silicon-nickel 4 e telele thapo e lefellang lead / compensating cable | ||
EX | Nickel-chromium 10-nickel 45 e telele thapo e lefellang lead / compensating cable | Nickel-chromium-cupronickel thermocouple | E |
JX | Tšepe-koporo nickel 45 nako e telele puseletso lead/ thapo e lefang | Iron-constantan thermocouple | J |
TX | Iron-nickel-chromium 45 e lefella nako e telele lead/ thapo e lefang | Koporo-constantan thermocouple | T |