自制单摆振动图像描绘实验仪

摘要

为获得简谐运动的清晰图像，自制了单摆振动图像描绘实验仪。实验将带有放电针的单摆与高压脉冲的电极相连，在单摆下方放置一匀速运动的纸带，当单摆振动时，由尖端放电原理可知，在纸带上将描绘出单摆振动的图像。%In order to obtain a clear image of simple harmonic motion,a plotting instrument for pendulum vibration was made.The pendulum with discharge needle was connected to the high voltage pulse electrodes,and paper tap in uniform motion was placed below the pendulum.Based on the prin-ciple of point discharge,the vibration curve of the pendulum was plotting on the paper tap.