Design of Program-Controlled Micro-flow Feeding System Based on Single Stepping Motor

摘要

This paper describes the requirements of droplet analysis system for feeding liquid stability, trace and controllable, devised a system for liquid pump. In the mechanical structure design process, two functions of driving the actuating device and the switching mechanism was considered, so the system can be driven by a single stepping motor. The circuit design corresponding to machine operation, and microcomputer and motor drive design for pump control system were given. Using LabVIEW serial communication functions, finished the PC program. Experiments show that the system improves the stability of for liquid feeding effectively.