System and method for dispensing fluid droplets of known volume and generating very low fluid flow rates

摘要: A system and method for dispensing fluid droplets of a known volume uses control using inner outer loops. The loop includes pump which pressurizes against an aperture, causing to pass through the aperture tip at particular flow rate. pressure upstream is measured fed back controller, also receives setpoint input representative desired dispensed volume. droplet measuring determines that forms outlet as result applied pressure, value controller. controller arranged maintain (using loop) needed produce rate will quickly (as determined loop), time reduced zero