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Inverted Pendulum - Speaker Driven

Purpose

To demonstrate the conditions for stability of an inverted pendulum.◙

Equipment

A weighted straw hinged at the center of a loudspeaker is used as an inverted pendulum, which is driven by a sinusoidal wave to the speaker. The effect of variation of the driver frequency and amplitude on the stability can be easily studied.

Setup Time

5 min.

Images

g1-57

Description

A weighted straw hinged at the center of a loudspeaker is used as an inverted pendulum, which is driven by a sinusoidal wave to the speaker. The effect of variation of the driver frequency and amplitude on the stability can be easily studied.

References

Henry P. Kalmus, The Inverted Pendulum, AJP 38, 874, (1970).

G. Vibrations And Mechanical Waves

G. Vibrations And Mechanical Waves

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