2018 BFY III Abstract Detail Page
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| Abstract Title: |
W49: Harmonic Motion, Damped, Driven, and Self-Oscillating |
| Abstract: |
This experiment uses TeachSpin's Torsional Oscillator apparatus to illustrate some classic properties of simple harmonic motion. This apparatus, using motion in an angular coordinate, gives a near-perfect realization of simple harmonic motion, damped by a v1 friction law, and generates analog output waveforms directly comparable to theory. The apparatus also accommodates a driving torque, so a drive by an externally-generated sinusoid permits the detection of the famous 'resonant peak', including the phase shift exhibited near resonance. Finally, the addition of new Auxiliary Electronics allows excitation of the oscillator by a waveform derived from it, so that the oscillator can run autonomously, at its own resonant frequency, as a 'torsional clock'. |
| Abstract Type: |
Workshop
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Author/Organizer Information |
| Primary Contact: |
David Van Baak
TeachSpin, Inc.
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