Image:Helmholtz resonator 2.jpg

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[edit] Summary

Description

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 it's 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
Source

Historisk Fysik bind I
Date

1896
Author

Poul la Cour & Jacob Appel
Permission
(Reusing this image)

see below

[edit] Licensing

Public domain This image (or other media file) is in the public domain because its copyright has expired.

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Date/TimeDimensionsUserComment
current12:39, 14 October 2007665×504 (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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Orientation Normal
Horizontal resolution 150 dpi
Vertical resolution 150 dpi
Software used Adobe Photoshop CS3 Windows
File change date and time 14:22, 14 October 2007
Color space 65535