Oscillating device for converting fluid kinetic energy into electrical energy

A transducer device of fluid-dynamic energy into electrical energy, usable as flow meter or as an energy harvester, comprising:

• a mechanical element interacting with a flowing fluid, supported to at least oscillate in a plane with a component parallel to flow direction and another component transverse or orthogonal to a surface transversal to the flow direction and belonging to the mechanical element, wherein the mechanical element is brought into oscillation or vibration by the fluid flow, by way of one or more elastic suspending elements;
• a magnetic induction electromotive force generator, including at least a magnetic flow generator, the flow crossing at least an electric conductor;
• the conductor being dynamically connected to the mechanical element that mechanically interacts with the fluid and is moved across a magnetic field by an oscillating or vibrating motion of the mechanical element, thus experiencing an induced current;
• at least one collection unit for an electrical signal generated by induction in the conductor, electrically connected to ends of the conductor,
• wherein the mechanical element is suspended oscillating around an axis transversal to the flow direction and corresponding to a transversal axis half way along the mechanical element;
• a frame that supports a rotation shaft at its ends;
• and
• elastic members provided in a direction of rotation, with respect to the rotation around the shaft.