论文摘要，高手帮忙翻译下，在线等！

Stepper motor in the automation devices are widely used, precise control and rational use of stepper motor drive is the key. Although there are many commercial controllers and drives can be selected, but their higher prices, not suitable for low-cost equipment for use or transformation of existing low-cost equipment.Therefore, the project's requirements from the functional point of view the design of economical production of a dedicated low-power stepper motor control / driver circuit, and testing center to analyze the X-ray analyzer system to the kind of background for the use of automation to complete the two-dimensional (horizontal, vertical) adjustable mechanical design, low-power control circuit and the stepper motor / driver circuit design, PC control software development tasks, and final analysis of the X-ray Testing Center analyzer system to the kind of automation.Require students familiar with the analog circuits and digital circuits of the basic theory, familiar with t