Electrostatic sensors applied to the measurement of electric charge transfer in gas–solids pipelines

This paper describes the development of a number of electric charge sensors. The sensors have been developed specifically to investigate triboelectric charge transfer which takes place between particles and the pipeline wall, when powdered materials are conveyed through a pipeline using air. A number of industrial applications exist for such gas–solids pipelines, including pneumatic conveyors, vacuum cleaners and dust extraction systems. The...