Concentration Profiling using a Novel Acoustic Backscatter System with Single Transducers Pulsed at Multiple Frequencies

Acoustic backscatter systems offer a flexible technique to measure dispersion concentration and particle size, via inversion of the return echo voltage response of pulse-echo signals in the MHz range. While there have been recent developments in how backscatter models can be broadened in marine applications there is little data available for the Rayleigh regime (ka<;1) as direct inversion is not applicable for small particles that attenuate significantly; for engineering applications, however, understanding the limits of current acoustic modelling techniques for these systems would be invaluable.