Thermoelectric technology: Micro-electrical and power generation properties

A thermoelectric test system for measuring micro-electrical power generation has been designed. Standard thermoelectric modules have been tested to determine their micro-electrical and power generation properties, with typical test results presented. A module can generate a small amount of electrical power, typically mW, if a temperature difference is maintained between two terminals, and can be used in energy harvesting systems or provide electrical power for wearable electronics. Alternatively, a thermoelectric module can operate as a heat pump, providing heating or cooling of an object connected to one side of the module.