| Title |
Controller Design of Q galvanometer for Laser Marking Equipment |
| Authors |
Seoung-Hyun Bang ; Sun-Ki Hong ; Soo-Gil Kim ; Tae-Sam Kang |
| Abstract |
In this paper, proposed is a control system for a galvanometer which is widely used for laser display, laser processing and marking system. The galvanometer with mirror is modeled as a second-order dynamic system. Based on frequency responses and time domain responses of the developed model, a conventional PID controller is designed. And it is implemented using a DSP(TMS320C32) chip with precision A/D and D/A converters. Through frequency response and experimental results, it is convinced that the proposed control system works well in real environment. Furthermore it is very easy to be connected to any PC because of USB communication port, and the cost of the marking system can be lowered very much because the DSP do the all the jobs for generating font motion as well as controlling the galvanometer. |