File:Helmholtz resonator 2.jpg

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DescriptionHelmholtz resonator 2.jpg	English: A Helmholtz resonator in an experimental tone generator designed by Hermann Helmholtz. The resonator is the cylindrical object (i). Most musical tones are composed of many frequencies, called harmonics. The purpose of this device was to generate a pure tone of one frequency. The electromagnet (b) vibrates the tuning fork (a). The Helmholtz resonator (i) is tuned to the fundamental frequency of the tuning fork, amplifying its sound. For more information see Hermann L. F. Helmholtz (1912) On the Sensations of Tone as a Physiological Basis for the Theory of Music, 4th Ed., translated from his 1877 work by Alexander J. Ellis, Longmans Greene & Co., London, p.120-121
Date	1896
Source	Historisk Fysik bind I
Author	Poul la Cour & Jacob Appel

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:39, 14 October 2007		665 × 504 (190 KB)	Saddhiyama	{{Information \|Description=The Helmholtz Resonator \|Source=Historisk Fysik bind I \|Date=1896 \|Author=Poul la Cour & Jacob Appel \|Permission= \|other_versions= }} Category:Acoustics Category:History of technology

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