There are no complicated mechanical and optical parts for reading fringe in the setup. The locations of the observation points are displayed automat ally by a two dimensional steppingcontroller.
该装置不需要复杂的读取条纹的光学及机械部件，操作方便，观察点位置由二维步进装置控制器自动显示。
3
In this paper, microcontroller, stepper motor driver chips, character LCD and keypad array, build a set of stepper motor controller and driver as one of the stepping motor control system.