Measurements of charge density on powdery or granular media using the “open” Faraday's cage

Abstract Application of the measurements of a charge induced on the flat electrode placed at the bottom of a container, for the determination of total accumulated charge is discussed in the paper. The value of correction factor K Q , important for the numerical linking of both (accumulated and induced) charges, was determined numerically and experimentally. The values of K Q factors determined by various methods differ as 1:1.7, however application of the method of "open" Faraday cage in technological conditions is fully justified.