INDUSTRIAL ROLL WITH PIEZOELECTRIC SENSORS FOR DETECTING PRESSURE

摘要

An industrial roll includes: a substantially cylindrical core having an outer surface; a polymeric cover circumferentially overlying the core outer surface, the cover including a base layer circumferentially overlying the core and a topstock layer overlying the base layer; and a sensing system. The sensing system includes: a plurality of piezoelectric sensors embedded in the cover base layer, the sensors configured to sense pressure experienced by the roll and provide signals related to the pressure; and a processor operatively associated with the sensors that processes signals provided by the sensors. The embedding of sensors in the cover base layer can allow for piezoelectric sensors to be applied without temperature insulation and can reduce the impact of water permeation through the topstock layer.