Figure 5
From: Experimental research on surface acoustic wave microfluidic atomization for drug delivery

Continuous atomization process of liquid supplied by paper over time. The cross-hatched box indicates the position of the paper strip. (a) Atomization behavior with a SAW frequency of 30 MHz at a power of 4.17 W. (b) Atomization behavior with a SAW frequency of 30 MHz at a power of 6.62 W.