Design and Development of Embedded System on ARM for On-Line Characterization of DC Motor

An on-line characterization system has been developed for DC motors working in Micromanufacturing applications. These sensitive applications require high precision and high speed of response. The system has been programmed on ARM microcontroller, it actuates DC motor and automatically collects data while it is being accelerated and attains a steady speed ; the embedded routines process it instantly and returns the current values of inertia, friction coefficient, back-emf constant and torque constant. A prototype system for DC motor control has been developed in laboratory, it has been characterized and control experiments have been performed. when such Micromanufacturing applications progress in real-time, any change in the motor parameters, consequently in transfer function, can be found and utilized for better performance.