» Helmholtz Resonators (0053)
Immagini
DESCRIPTION
Exhibit 53 is a set of 19 Helmholz resonators each formed as an empty brass (or copper) globe with two openings, one large functioning as a speaker and one small at the end of a protrusion convenient to enter into the ear. The dimensions of the resonators are calculated so as to vibrate in unison with definite frequencies.Dati Catalografici
| Data di costruzione: | Seconda Metà XIX Secolo |
|---|---|
| Data di carico: | 1874-04-20 |
| Nr. Inventario: | 1440 (Generale dal 1874) |
| Costruttore: | Rudolph Koenig |
| Materiale: | ottone |
| Dimensioni: | Diametri da 20 a 225 mm |
| Conservazione: | buono |