Acoustic Resonance Experiment (abstract And References)

In this experiment measurements for velocity of sound were taken, as well as observations of resonant peaks occurring in several enclosures, and the effects of Helmholtz resonance. The values found for velocity of sound were (349±18) m/s and (346±2) m/s. The calculated literature value for velocity of sound was 344 m/s [1]. This suggests the experiment was successful in determining legitimate values for the velocity of sound through air as this value lies within the error bounds. Resonant peaks were found for all but three predicted frequencies. This again suggests success in corroborating the equations predicting such frequencies. Finally a plot of Helmholtz resonance was recorded and compared with non Helmholtz resonances. This confirmed that the effect existed, and what its effects were, but no quantitative analysis of this was done.

References

[1]H. C. Hardy, D. Telefair, and W. H. Pielemeier, The Velocity of Sound in Air, J. Acoust. Soc. Am., vol. 13, pp. 226-233 (1942 Jan.). [2]P.A. Tipler's G. Mosca's Physics for Scientists 6th (Sixth) edition(Physics for Scientists and Engineers [3]H. Helmholtz On the Sensations of Tone as a Physiological Basis for the Theory of Music; Alexander, J.E., Ed.; Kessinger Publishing: Whitefish, MT, USA, 2005. [4]J.L. Heilbron, The Oxford Companion to the History of Modern Science [5]L.E. Kinsler, Fundamentals of Acoustics [6]Blackstock, D.T. Fundamentals of Physical Acoustics John Wiley and Sons, USA, 2000