In temperature measurement using thermocouples,Compensation wire for thermocoupleThe use is quite common. But after investigation, it was found that many places have encountered many problems due to improper use of compensating wires. This article introduces the principle of compensating wires, summarizes common forms of incorrect use, and theoretically analyzes the resulting deviations, pointing out the correct usage methods and precautions.

Thermocouple compensation wires have been widely used in thermocouple temperature measurement. If you understand the principle, function, method of action, and precautions of thermocouple compensation wires, you can fully utilize the function of thermocouple compensation wires, otherwise it will backfire.

In fact, in many thermocouple temperature measurement sites, the author found that 40% of them use ordinary copper wires as connecting wires, while only 60% use compensating wires as connecting wires. There are two reasons for this:

One reason is that the operators of thermocouple equipment do not understand the function of compensating wires and believe that ordinary wires are sufficient as long as they play a connecting role.

The second issue is that equipment manufacturers use ordinary wires as connecting wires when installing thermocouples, but from the user's perspective, they always assume that the equipment installation personnel are professionals and their methods are always correct, which fails to arouse the necessary suspicion.

In industrial production, although thermocouples have been widely used as temperature sensors for temperature measurement and control, and people are familiar with them, if the correct usage method is not paid attention to, it can cause significant deviation in temperature measurement and control, and in severe cases, directly cause economic losses. Therefore, it should be taken seriously.