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Resonant frequency shifts induced by a large spherical object in an air-filled acoustic cavity
1.J. W. S. Rayleigh, The Theory of Sound, 2nd ed. (MacMillan, London, 1894).
2.P. A. A. Laura, R. H. Gutierrez, and G. S. Sarmiento, “Comparison of variational and finite element solutions of Helmholtz equation,” J. Acoust. Soc. Am. 68, 1160 (1980).
3.E. Leung, C. P. Lee, N. Jacobi, and T. G. Wang, “Resonance frequency shift of an acoustic chamber containing a rigid sphere,” J. Acoust. Soc. Am. 72, 615–620 (1982).
5.M. Barmatz, J. L. Allen, and M. Gaspar, “Experimental investigation of the scattering effects of a sphere in a cylindrical resonant chamber,” J. Acoust. Soc. Am. 73, 725–732 (1983).
6.J. B. Mehl and R. N. Hill, “Acoustic eigenfrequencies of cavities with an internal obstacle: A modified perturbation theory,” J. Acoust. Soc. Am. 85, 1841–1851 (1989).
7.J. A. Roumeliotis, “Eigenfrequencies of an acoustic rectangular cavity containing a rigid small sphere,” J. Acoust. Soc. Am. 93, 1710–1715 (1993).
8.J. M. Harris, D.-L. Xu, X.-M. Wang, Y.-J. Song, J.-S. Cong, and D.-H. Chen, “Resonance frequency shift in a cylindrical cavity with an inner small coaxial cylinder,” Chinese J. of Geophysics 48, 493–500 (2005).
9.D.-H. Chen, X.-M. Wang, J.-S. Cong, D.-L. Xu, Y.-J. Song, and S.-L. Ma, “Experimental studies on perturbed acoustic resonant spectroscopy by a small rock sample in a cylindrical cavity,” Sci. China, Ser. G 49, 683–701 (2006).
10.C. C. Lawrenson, B. Lipkens, T. S. Lucas, D. Perkins, and T. W. van Doren, “Measurements of macrosonic standing waves in oscillating closed cavities,” J. Acoust. Soc. Am. 104, 623–636 (1998).
11.M. F. Hamilton and D. T. Blackstock, Nonlinear Acoustics (Academic, New York, 1998).
12.L. D. Landau and E. M. Lifshtz, Fluid Mechanics (Pergamon, London, 1959).
13.A. Ronveaux, Heun’s Differential Equations (Oxford University Press, New York, 1995).
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Acoustic resonances are modified when objects are introduced into a chamber. The magnitude of these changes depends on the object position, size, and shape, as well as on its acoustic properties. Here, an experimental study concerning the resonant frequency shifts induced by a solid spherical object in a quasi-one-dimensional air-filled acoustic cavity is reported. It is shown that Leung’s theory does not account quantitatively for the observations. A novel and simple approach is proposed, based on the wave equation in a cavity of variable cross section. The results fit more accurately the measured frequency shifts.
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