Copper nickel thermocouple is introduced copper nickel thermocouple ( T thermocouple) Also known as copper - Constantan thermocouple, is also a kind of measuring high temperature thermocouple of cheap metal. It's the cathode ( TN） For copper and nickel alloy, the anode ( TP） Is pure copper, often a constantan, it with iron - Constantan constantan Jacqueline Nottingham not general, chromium and nickel - Constantan constantan EN can general, although they are called constantan, but copper - The lid of the copper and nickel thermocouple temperature range of measurement for - 200~350℃。
T thermocouple of the anode copper under the low temperature oxidation function is poor, so using the temperature was bound.
T thermocouple with thermoelectric emfs is larger, high sensitivity, good linearity, stability, and the average sex is good, price is low wait for an advantage, special zone using 200 ~ 0 ℃ below zero temperature, better stability, stability can be less than + / - 3 years mu V, through high temperature calibration can be as a second-class specifications for high temperature dissemination.