Detail knowledge of explanation platinum-rhodium thermocouple

Due to platinum rhodium thermocouple is mainly composed of two completely different composition of conductor, will directly connect the synthesis loop on both ends, if the two junction temperature on different, so can produce larger thermal current in the circuit. If the thermocouple in the end and there is also a difference in temperature between the reference end, on the reality of instrument will be directly due to the thermocouple, and produce thermoelectric potential on the temperature of the instructions.

and platinum-rhodium thermocouple in the heat of electric heat, will change with the measure the temperature, but will only on the size and the thermocouple material, at the ends of the relationship between temperature, and thermal electrode on the length and diameter has nothing to do. Different platinum-rhodium thermocouple in shape, change because of the different needs, but in the basic structure of the basic are the same, is normal by protecting tube, thermal insulation sleeve electrodes and junction box, etc. So platinum rhodium thermocouple used more often in the case of high temperature, and a variety of different production process, such as powder metallurgy, smelting furnace, furnace, sintering of light and vacuum furnace, glass furnace, etc.