A flow rate and droplet size control system for a spray system including a spray liquid source, a pump, a spray liquid line and a nozzle assembly. The control system includes a setpoint conversion subroutine for independently controlling the flow rate and volume median droplet size setpoints....http://www.google.ca/patents/US5704546?utm_source=gb-gplus-sharePatent US5704546 - Position-responsive control system and method for sprayer
