What Are The Functions And Uses Of Thermocouples

Wide measurement range. Commonly used thermocouples can be continuously measured from minus 50 degrees to 1600 degrees, and some special thermocouples can measure as low as -269 degrees (such as gold, iron, nickel and chromium) and as high as 2800 degrees (such as tungsten, rhenium). Thermocouples are usually composed of two different metal wires, and are not limited by size and beginning, and have a protective sleeve outside, which is very convenient to use.

Since the materials of thermocouples are generally more expensive (especially when precious metals are used), and the distance between the temperature measurement point and the instrument is very long, in order to save thermocouple materials and reduce costs, compensation wires are usually used to connect the cold end (free) of the thermocouple. terminal) extends into the control room where the temperature is relatively stable, and connects to the instrument terminal.