Muaj yim hom thermocouples, txhua tus muaj cov khoom tshwj xeeb. Lawv yog B, E, J, N, K, R, T, thiab S hom.
B-hom Thermocouple
Hom B thermocouple muaj xws li Platinum (30% Rhodium) thiab Platinum (6% Rhodium) alloy. Nws muaj qhov kub thiab txias ntawm 1370 txog 1700 degree, ua rau nws tsim nyog rau kev siv nrog kub kub zoo li iav ntau lawm.
E-hom Thermocouple
Hom E thermocouple muaj xws li Chromel thiab Constantan alloys. Nws muaj qhov ntsuas kub qis dua li hom B (0 txog 870 degree ). Lawv tuaj yeem siv rau hauv qhov chaw tsis muaj zog, tab sis lawv yuav tsum tau tiv thaiv ib puag ncig sulfurous. Hom E thermocouples feem ntau yog siv hauv cov chaw tsim hluav taws xob.
J-Type Thermocouple
Hom J thermocouple suav nrog Hlau thiab Constantan. Nws muaj qhov ntsuas kub qis ntawm 0 txog 760 degree . Hom thermocouple no feem ntau yog siv nyob rau hauv inert thiab lub tshuab nqus tsev ib puag ncig. Ib qho kev siv ntau tshaj plaws yog Kev Txhaj Tshuaj Molding.
K-hom Thermocouple
Hom K thermocouple yog ua los ntawm Chromel thiab Alumel. Nws muaj qhov kub thiab txias ntawm 95 txog 1260 degree. Nws yog qhov zoo tshaj plaws rau qhov nruab nrab lossis oxidising ib puag ncig thiab feem ntau yog siv hauv refineries.
N-hom Thermocouple
Cov alloys siv rau hom N thermocouples yog Nicrosil thiab Nisil. Nws qhov kub thiab txias yog nyob nruab nrab ntawm 650 txog 1260 degree. Lub cim tshwj xeeb ntawm hom thermocouple no yog tias nws muaj kev tiv thaiv siab rau degradation vim ntsuab rot thiab hysteresis. Feem ntau, hom N thermocouples yog siv nyob rau hauv petrochemical thiab refineries industries.
R-hom Thermocouple
Hom R thermocouples suav nrog kev sib xyaw ntawm Platinum (13% Rhodium) thiab Platinum thiab muaj qhov kub ntawm 870 txog 1450 degree. Vim qhov tseeb tias lawv muaj kev ruaj khov thiab raug, lawv tau siv hauv Sulfur rov qab units.
S-hom Thermocouple
Hom S thermocouples yog sib xyaw ntawm Platinum (10% Rhodium) thiab Platinum. Lawv muaj qhov kub siab dua ntawm 980 txog 1450 degree ua rau lawv zoo meej rau cov ntawv thov uas muaj qhov kub thiab txias.
T-hom Thermocouple
Qhov kawg tab sis tsis kawg, hom T thermocouple suav nrog tooj liab thiab Constantan. Qhov ntsuas kub nws muaj nyob nruab nrab ntawm -200 txog 370 degree . Nws yog tsim rau inert thiab nqus ib puag ncig, ua rau nws zoo meej rau siv nyob rau hauv cryogenics thiab khoom noj khoom haus.
