MICROFLUIDIC APPARATUS FOR THE ATOMISATION OF A LIQUID USING SURFACE ACOUSTIC WAVES

摘要

An apparatus for the atomisation of a liquid including: a piezoelectric substrate having at least one working surface, at least one electrode supported on the piezoelectric substrate; a signal generating means for applying an ultrasonic signal to said electrode for generating a surface acoustic wave (SAW) in the working surface of the piezoelectric substrate, and a liquid delivery arrangement for delivering liquid to the working surface, wherein liquid delivered to the working surface is atomised by SAW irradiation, and wherein the ultrasonic signal is amplitude modulated.