thermocouple
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Will it have an impact if the thermocouple contact ends are welded with welding wire? There must be some impact, right? After all, a new metal is involved, and if the two metals in front of the solder joint come into contact, there will be 2 or more contact points; in that case, it’s the temperature of the nearest contact point that is being measured, right?
According to the thermocouple intermediate conductor law. Adding other metals between the two torsion wires will not affect the measurement results, as long as the temperatures at both ends of the addition point are the same.
Law of the intermediate conductor for thermocouples. Other metals can be added between the two wire pairs; as long as the temperatures at both ends of the addition point are the same, it will not affect the measurement results
It’s better to get a new one; after all, production is of utmost importance, so one shouldn’t do things without being sure about them. If you want to conduct experiments, it can be taken apart for detailed study.
No, as long as the welding is secure there’s no problem; once one is familiar with the principle of thermocouple temperature measurement, no additional potential difference is generated when using the same medium and when there is no temperature difference between the two ends