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Henrici's harmonic analyser, No 3, 1894.

Henrici's harmonic analyser, No 3, 1894.
3 2 c m
actual image size: 32cm x 24cm


Harmonic analysers were designed to break down a complex wave, such as a sound wave, into its fundamental and harmonic components. This one, designed by Profesor Olaus Henrici (1840-1918) and made by G Coradi, uses the motions of three glas spheres which turn numbered dials.

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© Science Museum / Science & Society Picture Library

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