How to deal with interference when measuring temperature with platinum rhodium thermocouple

During the use of platinum rhodium thermocouples, there are always many situations that interfere with our measurement accuracy, which is a very tricky problem. When using platinum rhodium thermocouples, we need to be prepared to prevent interference in such situations. With the improvement of current industrial production level, the usage rate of platinum rhodium thermocouples is very high, so the measurement accuracy of platinum rhodium thermocouples is a very important thing to pay attention to!

What should we do when our platinum rhodium thermocouple encounters interference during use? Shielding method: Thread the compensating wire of the platinum rhodium thermocouple into an iron pipe or other metal shielding material for shielding. This can prevent electromagnetic interference and interference from high-voltage electric fields. When using this method, the iron pipes and shielding materials should be well grounded, and the compensating wires should be twisted together. Isolation method: The platinum rhodium thermocouple is suspended and installed so that it does not come into contact with the refractory bricks on the furnace wall. Insulation is also used to isolate the platinum rhodium thermocouple from the bracket. This method can effectively prevent high-temperature leakage interference. Grounding method: This method involves grounding the measurement circuit and introducing interference into the ground to ensure the accuracy of the instrument measurement. There are two forms of this method: one is to ground the reference terminal of the platinum rhodium thermocouple, and the other is to ground the measurement terminal of the platinum rhodium thermocouple. Based on different temperature measurement and usage environments, what specific methods do we use for prevention? Our goal is to minimize interference and achieve ideal temperature measurement accuracy. Therefore, in the process of prevention, we must pay attention to how to better deal with relevant interference.