Abstract: A flexible sensor is provided which has a flexible substrate of polymeric material, a bottom electrode layer arranged on the flexible substrate and configured to be a reference electrode, an active layer of piezoelectric material arranged on the bottom electrode layer, a top electrode layer arranged on the active layer and configured to be connected to a signal conductor, and a flexible coating layer of polymeric material that cooperates with the flexible substrate to encapsulate the bottom electrode layer, the active layer, and the top electrode layer. The flexible sensor has an additional layer of metal material arranged on the flexible coating layer and short-circuited to the bottom electrode layer, the additional layer and the bottom electrode layer acting as an electromagnetic shield for the flexible sensor.

Abstract: A device for harvesting energy from a fluidic flow, including a flexible structure formed by: a base layer; a conductive layer, made of a conductive material and laid on the base layer; and a piezoelectric layer, made of a piezoelectric material and laid on the conductive layer. The base layer, the conductive layer, and the piezoelectric layer form a crystalline structure including a plurality of pseudomorphic portions.

Abstract: A transmission belt is described which comprises a body made of a first elastomeric material, a plurality of teeth and a plurality of longitudinal cords buried in the body of the belt and a back. The belt has a working surface on said teeth and the working surface is at least partially covered by a covering made of a plastic and/or metal material. Defining the area comprised between the plane defined by the neutral axis of the cords, the working surface and the median transverse planes of two adjacent teeth as the unitary longitudinal section, the covering preferably occupies at least 25% of the unitary longitudinal section.