What is a compensation wire
Release Time : 2023-03-03
1. What is a compensation wire?
The compensation conductor is a pair of wires with an insulating layer that can have the same nominal value as the matched thermocouple thermal electromotive force over a certain temperature range. By using compensation wires, it can be used to connect thermocouples to measuring devices and compensate for errors between the two.
Second, the working principle of the compensation wire
In a certain temperature range, wires with thermoelectric properties similar to thermocouple thermoelectric properties are called thermocouple compensation wires. According to the thermocouple intermediate temperature rule, the total potential value of the thermocouple temperature measurement circuit is only related to the temperature of the hot end and the reference end, and is not affected by the intermediate temperature change, so the compensation wire matching the thermocouple material can be used to replace the precious thermocouple material that needs to be extended, and the reference end is extended from the thermocouple junction box to the instrument terminal, and the original reference terminal temperature is compensated by the compensation wire.
Third, the role of compensation wires
Function 1: The compensation wire can effectively reduce the high temperature generated by the thermocouple and transmit the current that needs to be transmitted to farther places. In addition, the original wire can be used longer and save material. The maximum retention of current during transmission is maximum.
Function two: The use of compensation wires can also help reduce the frequency of disasters, mainly reflected in reducing the temperature to ensure that the compensation wires are better used in the environment.
Function three: If it is a high temperature of the thermocouple for a long time, you can use a thicker compensation wire, so that according to the physical principle, the larger the diameter can reduce the thermocouple loop resistance. Facilitates measurement and automatic control.
The compensation conductor is a pair of wires with an insulating layer that can have the same nominal value as the matched thermocouple thermal electromotive force over a certain temperature range. By using compensation wires, it can be used to connect thermocouples to measuring devices and compensate for errors between the two.
Second, the working principle of the compensation wire
In a certain temperature range, wires with thermoelectric properties similar to thermocouple thermoelectric properties are called thermocouple compensation wires. According to the thermocouple intermediate temperature rule, the total potential value of the thermocouple temperature measurement circuit is only related to the temperature of the hot end and the reference end, and is not affected by the intermediate temperature change, so the compensation wire matching the thermocouple material can be used to replace the precious thermocouple material that needs to be extended, and the reference end is extended from the thermocouple junction box to the instrument terminal, and the original reference terminal temperature is compensated by the compensation wire.
Third, the role of compensation wires
Function 1: The compensation wire can effectively reduce the high temperature generated by the thermocouple and transmit the current that needs to be transmitted to farther places. In addition, the original wire can be used longer and save material. The maximum retention of current during transmission is maximum.
Function two: The use of compensation wires can also help reduce the frequency of disasters, mainly reflected in reducing the temperature to ensure that the compensation wires are better used in the environment.
Function three: If it is a high temperature of the thermocouple for a long time, you can use a thicker compensation wire, so that according to the physical principle, the larger the diameter can reduce the thermocouple loop resistance. Facilitates measurement and automatic control.