单摆运动的实时测量

Real-time measurement of the vibration of a simple pendulum

对传统单摆装置进行改进,在摆球上安装小金属探针,用软导线做摆线,在单摆下方放置带电水槽,使单摆摆动时探针在水面划动,将振动量转化为电位量,实现了单摆振动的实时测量.

The usual pendulum is improved by installing a small metal probe under the bob and using soft wire to suspend the bob over a water trough. The probe moves on the water＇s surface when the pendulum swing and the vibration can be transformed into potential changes. The vibration of a simple pendulum is measured in real-time.