在生产和科研中,平衡试验是个不可缺少的重要环节。一个经过平衡后的回转件,可明显地降低振动和噪声,从而大大地延长了整个系统的使用寿命。动平衡实验是为机械原理课程而开设的必修实验课,要求同学们通过该实验,加深理解和掌握动平衡的概念。我校早在五十年代就开出了动平衡的实验课,当时的实验装置很简陋,由手工操作,实验数据极其粗糙。七十年代后,逐渐以工业动平衡机代替原来的试验设备,虽然实用性较强,但设备价格较贵,操作也较复杂,因此通常都由教师协同调试,实验效果较差。随着教学改革的发展,采用新颖、简便、准确的实验方法,是提高实验质量的重要手段。为此,我们研制了一个单支点动平衡微机数据采集系统,初步实现了检测过程的自动化,使实验取得了良好的效果, In production and research, the balance test is an indispensable important link. A balance of the rotating parts, can significantly reduce vibration and noise, thus greatly extending the life of the entire system. Dynamic Balancing Experiment is a compulsory experimental class for mechanical theory courses, requiring students to deepen understanding and grasp of the concept of dynamic balance through the experiment. As early as the fifties, our school opened a dynamic experimental class. At that time, the experimental device was very simple and was operated by hand. The experimental data were very rough. After the seventies, the gradual replacement of the original test equipment by the industrial balancing machine, although more practical, but the equipment is more expensive, the operation is more complicated, it is usually coordinated by the teacher debugging, the experimental effect is poor. With the development of teaching reform, adopting new, simple and accurate experimental methods is an important means to improve the quality of experiments. To this end, we developed a single-point dynamic balancing computer data acquisition system, the initial realization of the testing process automation, the experiment achieved good results,