Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001
· Uses a junction of dissimilar metals to generate a voltage proportional to temperature.
· The bimetal junction will generate an electrical potential between the metals as the temperature increases. The change in voltage is linearly proportional to the change in temperature.
· When using a thermocouple for precision measurement, a second thermocouple can be kept at a known temperature for reference.
· A series of thermocouples connected together in series produces a higher voltage and is called a thermopile.
· Basic thermocouple types are J, K, etc. These are designed for different temperature ranges.
· The basic calculations for thermocouples are given below,
