Abstract
This paper investigates design of a nested saturated feedback control for an electro-hydrodynamic jet (E-jet) printer. The closed-loop control of this system is vital due to high dependency of product quality on the various system parameters. Typically, this printer is controlled by adjusting the voltage between the nozzle and substrate to regulate the height of the cone-jet to a desired value. This helps to manipulate size of droplets as an indicator of print quality. The proposed controller is simulating along with a widely-used PID controller in order to evaluate its overall performance. Then, this controller is implemented in COMSOL software, which emulates a more realistic model of the system, in order to mimic an experimental set up. Both studies show that the proposed controller could produce desired transient as well as steady-state responses in the presence of external disturbances.
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