Vision Based Control of Micro-Fluid Dispensing for Surface Mount Technology

Due to the complicated behavior of the dispensing fluid and have no effective method to measure the micro-fluid value dispensed online, controlling the micro-fluid dispensing process has proven to be a challenging task in achieving a high degree of consistency in the amount of fluid dispensed. To enhance the dispensing performance and get a high consistency, this paper presents the development of a model for prediction the amount of fluid dispensed. Based on the model, a vision based control strategy is then developed to improve the consistency in the amount of fluid dispensed. Experiments were conducted to verify the effectiveness of the control strategy.