沙摆运动研究

movement of the sand-pendulum

通过理论分析和在微型计算机上的模拟实验，探讨了沙摆演示利萨如图形出现相位差变化的原因．

The reason of phase difference change appearing in the process of demonstrating Lissajon's figure using a sand-pendulum are probed by way of theoretical analysis and analogue experiments on a microcomputer.