Measurements of deformed droplets and droplets with inclusions in an aerodynamic particle sizer

This paper describes the progress on a project aimed at quantifying the degree of deformation experienced by liquid droplets in the TSI Aerodynamic Particle Sizer with a view to providing automatic correction for errors in measured aerodynamic size caused by the deformation. The approach is based on recording the spatial light scattering from individual droplets as they pass through the instrument's measurement space. Theoretical inversions of the scattering from deformed droplets are presented. The paper also contains observations of droplets with inclusions.