A MEASURING SYSTEM AND A METHOD FOR MEASURING PARTICLE VELOCITY AND/OR PARTICLE VELOCITY DISTRIBUTION AND/OR SIZE AND/OR PARTICLE SIZE DISTRIBUTION

摘要

The present invention relates to a measuring system and a method for measuring particle velocity and/or particle velocity distribution and/or particle size or particle size distribution. Measuring system comprises filtering means for filtering collected signals, said filtering means arranged to pass signals at a relevant frequency band or at relevant frequency bands. The relevant frequency band or frequency bands are arranged to correspond to a frequency band or frequency bands defined by frequencies which exist in consequence of one or more process equipment or a process occurrence affecting to the medium flow.