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Experiments with a magnetically controlled pendulum

机译:磁控摆的实验

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摘要

A magnetically controlled pendulum is used for observing free and forced oscillations, including nonlinear oscillations and chaotic motion. A data-acquisition system stores the data and displays time series of the oscillations and related phase plane plots, Poincare maps, Fourier spectra and histograms. The decay constant of the pendulum can be modified by positive or negative feedback. The apparatus, except for the data-acquisition system, is extremely simple and low cost, and can be assembled in a short time. The wide possibilities of varying the parameters of the pendulum make the experiments suitable for student projects.
机译:磁控摆用于观察自由和强迫振荡,包括非线性振荡和混沌运动。数据采集​​系统存储数据,并显示振荡的时间序列以及相关的相平面图,庞加莱图,傅立叶光谱和直方图。摆的衰减常数可以通过正反馈或负反馈来修改。除数据采集系统外,该设备极其简单且成本低廉,并且可以在短时间内组装。改变摆锤参数的广泛可能性使该实验适合于学生项目。

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