Figure 4
From: Image-based closed-loop feedback for highly mono-dispersed microdroplet production
Changes in the distribution of droplet sizes taken for different time windows for the syringe pumps (red and pink), constant pressure pumps (dark green) and image-based feedback controlling pressure pumps (light green). At short timescales the two pressure based systems perform identically, however over long time periods, the drift of the constant pressure system becomes apparent while the image-based feedback remains constant.
