The experimental results measured
by flow sensor (ASL-1430-
16,Sensirion) are shown in Figure 4
and Figure 5. Average flow rate is
linearly proportional to rotation speed
since the volume flow per revolution
stays constant against the rotation
speed. Flow rate also depends on ID
of tubing and screw pitch of the
mounted spring. Thus, pumping ratio
of each channel can varies without
additional actuators by diversifying ID of each channel.