Fourier analyzer
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[[Image:Fourier_analyzer,_Koenig.jpg|right|thumb|250px|Fourier analyzer, designed by Rudolph Koenig, c. 1889]] | [[Image:Fourier_analyzer,_Koenig.jpg|right|thumb|250px|Fourier analyzer, designed by Rudolph Koenig, c. 1889]] | ||
| - | The '''Fourier analyzer''', which was called by Rudolph Koenig an '''Analyzer of the timbre of sounds''', is a large device for qualitatively comparing the Fourier components of a sound. Fourteen large [[Helmholtz resonator]]s of varying sizes are connected via rubber tubing to individual [[manometric flame]]s, which are reflected in a hand-driven rotating mirror for viewing. The resonators are individually adjusted to produce a fundamental tone and its harmonics for analysis. The taller a flame is, the larger its corresponding Fourier component. The manometric flames are stabilized with mica strips, which protect against unwanted wind and air currents. | + | The '''Fourier analyzer''', which was called by Rudolph Koenig an '''Analyzer of the timbre of sounds''', is a large device for qualitatively comparing the Fourier components of a sound. Fourteen large [[Helmholtz resonator]]s of varying sizes are connected via rubber tubing to individual [[flame manometer|manometric flame]]s, which are reflected in a hand-driven rotating mirror for viewing. The resonators are individually adjusted to produce a fundamental tone and its harmonics for analysis. The taller a flame is, the larger its corresponding Fourier component. The manometric flames are stabilized with mica strips, which protect against unwanted wind and air currents. |
Current revision as of 04:00, 13 April 2006
The Fourier analyzer, which was called by Rudolph Koenig an Analyzer of the timbre of sounds, is a large device for qualitatively comparing the Fourier components of a sound. Fourteen large Helmholtz resonators of varying sizes are connected via rubber tubing to individual manometric flames, which are reflected in a hand-driven rotating mirror for viewing. The resonators are individually adjusted to produce a fundamental tone and its harmonics for analysis. The taller a flame is, the larger its corresponding Fourier component. The manometric flames are stabilized with mica strips, which protect against unwanted wind and air currents.
