3D printed multi-frequency vibrational energy harvester

Zero energy devices, mainly used in IoT, need a stable power source that will power them for a very long period of their operation. Additive manufacturing is one of the few methods of producing strongly adaptive IoT solutions that can meet the requirements if large number of devices connected to the IoT network is needed wit additional adjusting to the changing environmental conditions in which they work. In this paper we present for the first time 3D printed multi-frequency energy harvester that can be designed to work in specific conditions required by the application. The work presents the process of fabrication, characterization and electrical/mechanical measurements with a strong emphasis on test related to the generated power.