Repetitive Controller Design for Coriolis Mass Flow Meter Using B-Spline Filters

This paper addresses the design and implementation of Discrete-Time Repetitive Controller for the widely used industrial flow-measuring device -Coriolis Mass Flow (CMF) meter. The objective of DRC is to track the sensor readings from the U -Shaped twin tube under no flow condition. Actuating signals are provided at the center of twin tube. The frequencies of the tube are estimated using Power Spectral density method. Since the modelling of Coriolis Mass Flow meter shows non-minimal phase behavior, effort has been made to design the compensator for Discrete Repetitive Control (DRC) using b-spline filter banks. A comparison has been made for different DRC compensation techniques using Euclidean norm. The responses are obtained using MATLAB.