Digital implementation of a galvanometric optical scanner based on DSP and FPGA

A galvanometric optical scanner in a laser marking system is controlled to achieve the demand of high speed and high accuracy. This paper presents a design of digital galvanometric optical scanner adopting a high-precision PID control algorithm with compensation based on repetitive control which is DSP+FPGA-based architecture. This thesis consists of three parts including theory of laser marking system and galvanometer scanner construction, hardware design of DSP+FPGA-based architecture, design and Simulation of scanning controller.