Abstract
A prototype of an improved aerosol generator, which produces monodisperse droplets of between 10 – 60 μm, is described. Improvements to the commercially available model (Research Engineers Ltd, London, UK) enable the new instrument to generate monodisperse aerosols over a larger range, and with more accuracy and precision. A characteristic equation for droplet size as a function of liquid flowrate, rotor speed, rotor radius and liquid physical properties is presented. Stop distance is also predictable, and is shown to follow theory. In comparison with the previous model, the prototype enables greater control of droplet monodispersity.