Experimental Based Identification Model of Low Fluid Flow Rate Control Systems

The low fluid flow rate is usually used in beverage industry, rain gauge and fuel systems. The good quality of product through accurate flow measurement is produced by excellent control systems. Moreover, the control theory from robust to adaptive perspective can improve the control systems quality from its model. The flow meter can be used as feedback elements through water fluid. Furthermore, solenoid valve and diaphragm pump can be used as actuator. The purpose of this research is to develop identification model of control systems from experimental plant behavior of low fluid flow rate control. From the experiments, the actuator of diaphragm pump has more control ability than solenoid valve, particularly due to its stability. The plant needs time around after 70 s to stabilize the flow rate. The relation of voltage input of pump and flow rate output can be written as best transfer function model on number of poles and zeroes by 2 respectively.