A simple method has been developed for visualizing intense stationary sound waves, using a thin electrically heated wire stretched in the direction of sound propagation. The nodes and antinodes of the sound waves appear as a series of alternate incandescent and dark areas on the wire. Photographs of the hot wire indicate the presence of hitherto unreported thermoacoustic phenomena.
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July 11 2005
Hot Wire Method for Visualizing Intense Stationary Sound Waves
R. M. Fand;
R. M. Fand, J. Kaye; Hot Wire Method for Visualizing Intense Stationary Sound Waves. J. Acoust. Soc. Am. 1 June 1959; 31 (6): 810–811. https://doi.org/10.1121/1.1907790
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