About the technical index, rounding of platinum-rhodium thermocouple

Platinum rhodium thermocouple in the whole industry, main number belongs to the traditional temperature measuring element, because its on the thermoelectric properties are very stable, and antioxidant performance is also very strong, so especially suitable for use in a inert or oxidizing atmosphere, for the use of continuity.

and platinum-rhodium thermocouple used in different period, then the temperature will be different, if the long-term use of platinum-rhodium thermocouple is, so the temperature is 1600 ℃, but if only short-term use, then at least in a temperature of 1800 ℃ or so. Then the working principle of platinum-rhodium thermocouple? Because platinum-rhodium thermocouple is mainly composed of two completely different components at both ends of conductor combined into loop, so when the two junction temperature is different, so the loop will directly produce the phenomenon of heat current, and if the platinum-rhodium thermocouple temperature difference exists between work end and reference end, display instrument will directly to platinum rhodium thermocouple temperature of thermoelectric potential produced by direct display.