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Code Number: 3A95.51
Demo Title: Chaos Motor
Condition: Excellent
Area of Study: Oscillations & Acoustics, Chaos
Equipment:
Compass, Helmholtz Coils, Pasco Wave Generator, Chaos Motor Unit.
Procedure:
See also: 3A95.51 in Chaos and Rube Goldberg.
Hook the Pasco wave generator to the Helmholtz coils as shown. Place any of the compass needles between the coils and adjust the frequency until chaos is observed. This should be at a frequency of 2.8 Hz. or less depending on the compass needle used.
References:
- Mamraj Singh, Amanpal Singh, Sandeep Kumar, "Visualizing the Probability Density Function of a Classical Harmonic Oscillator", TPT, Vol. 61, #7, Oct. 2023, p. 588.
- Peter Millet, James Schreve, and Peter Coxeter, "Phase-Space Orbits and the Ping-Pong Ball Impact Oscillator", TPT, Vol. 44, #2, Feb. 2006, p. 92.
- C. Laroche, R. Labbe, F. Petrelis, S. Fauve, "Chaotic Motors", AJP, Vol. 80, #2, Feb. 2012, p. 113.
- H.J. Korsch, E. M. Graefe, and Hans-Jörg Jodl, "The Kicked Rotor: Computer-Based Studies of Chaotic Dynamics", AJP, Vol. 76, #4 & #5, April/May 2008, p. 498.
- Robert DeSerio, "Synchronous Analog I/O for Acquisition of Chaotic Data in Periodically Driven Systems", AJP, Vol. 72, #4, Apr. 2004, p. 553.
- Trevor Mitchell and P. B. Siegel, "A Simple Setup to Observe Attractors in Phase Space", AJP, Vol. 61, #9, Sep. 1993, p. 855.
- Archana Ojha et al., "Measurements of the Transient Motion of a Simple Nonlinear System", AJP, Vol. 59, #7, July 1991, p. 614.
- M. J. Ballico, M. L. Sawley, and F. Skiff, "The Bipolar Motor: A Simple Demonstration of Deterministic Chaos", AJP, Vol. 58, #1, Jan. 1990, p. 58.
- H. Meissner and G. Schmidt, "A Simple Experiment for Studying the Transition from Order to Chaos", AJP, Vol. 54, #9, Sep. 1986, p. 800.
- Paul A. Lucas, "Modifying Helmholtz Coils to Magnetically Drive a Small Dipole", AJP, Vol. 54, #7, July 1986, p. 666.
- Yaakov Kraftmakher, "2.5. Nonlinear Dynamics", Experiments and Demonstrations in Physics, ISBN 981-256-602-3, p. 103 - 107.