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.

Topics
Thermoacoustics, Acoustic signal processing, Acoustic waves, Experimental techniques
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© 1959 Acoustical Society of America.
1959
Acoustical Society of America
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