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在高中物理选修3-4《机械振动》一章第五节内容中,课本提供了演示共振现象的共振摆实验装置,由于横线挂摆球,驱动摆形成的驱动力难以同步传递到各从动摆,不易形成共振现象,加之实验操作的局限性,不易观察多驱动频率下的受迫振动和共振现象。又因为从动摆的数目有限,所以不易比较实验现象,趣味性不强。制作侧驱动复式共振摆,其制作方法简单,方便观察和操作实验效果明显,可供教学之用。
In high school physics elective 3-4 “Mechanical Vibration” chapter fifth content, the textbook provides resonance resonance experimental pendulum device, due to the horizontal line pendulum ball, driving the formation of the driving force is difficult to synchronize the transmission Vibration, not easy to form a resonance phenomenon, coupled with the limitations of experimental operation, not easy to observe the multi-drive frequency of forced vibration and resonance. And because of the limited number of slave oscillators, it is not easy to compare experimental phenomena with less interesting ones. Produced side-driven double resonance pendulum, the production method is simple, easy to observe and operate the experimental results are obvious, for teaching purposes.