The measurement of local velocity of solid particles

Abstract Methods for measuring the local solid-particle velocity inside equipment for very high solid loadings are reviewed, and the underlying principles of these methods are discussed in terms of their signal flow diagrams. The fiber optic method as well as a low cost correlator developed by the present authors for use in signal processing are discussed in detail. The choice of any specific measuring method for maximum efficiency is contingent upon its characteristics and the given flow systems. However, the use of the correlation method in conjunction with a fiber optic probe appears to be a promising and simple approach because of the availability of low cost signal processing devices.