MULTIPHYSICS MODELING AND SIMULATION OF A DUAL FREQUENCY ENERGY HARVESTER

Vibration based energy harvesting gained a lot of importance in the last two decades, due to the various potential vibration sources in industrial environments, where sensors have to be implemented in inaccessible environments. In this paper we present a concept of a dual frequency piezoelectric energy harvester with magnetic tuning capabilities together with characterization results. We subsequently investigate a potential gain in the electrical power output by implementing separated piezoelectric patches.