What is a thermopile?

A thermopile is a device that generates an electrical voltage when exposed to a temperature gradient. It consists of multiple thermocouples connected in series to increase the voltage output. Each thermocouple is made up of two different metals or semiconductors joined at one end. When one end of the thermopile is heated while the other end is cooled, a voltage is generated due to the potential difference between the two ends.

Thermopiles are commonly used in various applications where temperature differences need to be measured or converted into electrical signals. They are often used in infrared sensors, gas heaters, and thermoelectric power generation systems. Thermopiles are known for their high sensitivity, accuracy, and reliability, making them suitable for industrial and scientific purposes.