thermocouple theory

A thermocouple is a device that measures temperature by generating a small electrical voltage when two different metals are connected and exposed to heat. The temperature difference causes electrons to flow between the metals, creating this voltage. By measuring the voltage, the device determines the temperature at the junction. This effect, known as the Seebeck effect, allows thermocouples to accurately monitor temperature in various industrial and scientific applications, providing a simple yet reliable means of translating thermal energy into an electrical signal.