Design and Control of a Micro-Syringe Pump Driven by Piezoelectric Actuator

Abstract

In this project, the design and testing of a micro-syringe pump is conducted for precision delivery of liquid inside a tube. A single-axis micro-motion pump is designed by using flexure mechanisms for precision drive of the micro-syringe. Based on the specifications on travel range and load capability, a translational motion mechanism is developed. The machine parameters are designed and optimized to cater for the requirement on pump performance. The performance is verified by conducting finite element analysis simulations. A prototype pump actuated by a piezoelectric actuator is developed, a feedback controller is designed, and experiment studies are conducted for precision pump testing under a microscope.