Roll with sensors for a machine for producing and/or processing a material web and machine for producing and/or processing a material web

A roll for a machine for producing and/or processing a material web, the roll comprising:

• a cylindrical roll core formed with a lateral surface;
• a roll covering disposed on said lateral surface of said roll core, said roll covering including a functional layer and a connecting structure disposed to connect said roll core to said functional layer and having a plurality of connecting layers including an innermost connecting layer and a radially outermost connecting layer;
• wherein a hardness and/or a modulus of elasticity of said connecting layers increases from layer to layer from said radially innermost connecting layer to said radially outermost connecting layer;
• and
• a plurality of pressure-sensitive and/or temperature-sensitive sensors embedded in said roll covering and disposed in said connecting structure or at a boundary surface between said connecting structure and said functional layer.