The vibrations energy harvesting principle using piezoelectric materials [4] is
illustrated. The conversion chain starts with a mechanical energy source: Staircase.
Movement on the stairs produces vibrations and they are converted into electicity via
piezoelectric element. The electricity produced is thereafter formated by a static
converter before supplying a storage system or the load (electrical device).
In this study, before developing staircase piezoelectric generator, it was essential to
begin with mechanical vibrations sources identification that means carrying out
vibrations accelerations and frequencies measurement and analysis. So we have carried
out measurement on an experimental Staircase to identify the situation where
harvesting more energy is possible. We could then develope a piezoelectric generator
adapted to the identified natural mode of vibration of the stair thread.