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| MUSEUM Collection | |
| Online access: | https://catalogue.museogalileo.it/object/NobilisDifferentialGalvanometer.html |
| Object: | Nobili's differential galvanometer |
| Made: | [S.l.], ca. 1829 |
| Physical description: | 1 galvanometer : wood, brass, steel ; total height 280 mm, base 310x215 mm |
| Description: | Differential galvanometer invented by Leopoldo Nobili, mounted on a wooden base carrying a slender pillar from which the needle system is suspended. The glass protection dome is missing. The brass scale is divided into four quadrants. There are four independent coils of silk-covered wire, each connected to two brass terminals. Different currents could be circulated in the coils. If the currents circulated in opposite directions, the needle indicated the effect produced by their differential - hence the name of the instrument. A differential galvanometer was already developed by Antoine-César Becquerel in 1826. Provenance: Lorraine collections |
| National catalogue n.: | 09-00496504 |
| Current inventory: | IMSS, n. 1185 |
| Related names: | Nobili, Leopoldo, 1784-1835, (inventor) Becquerel, Antoine César, 1788-1878. |
| Collection: | Lorraine collection
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| Subjects: | *Galvanometro differenziale. |
| Described/mentioned in: |  Approvazione dell'acquisto di due strumenti di Leopoldo Nobili. 4 - 6 maggio 1830 Approvazione del pagamento di due strumenti di Nobili dei quali era stato autorizzato l'acquisto e di un altro strumento sempre di Nobili destinato a ricerche sul calore raggiante. 28 settembre 1830 Istituto e Museo di storia della scienza (Firenze) Catalogue of pneumatical, magnetical and electrical instruments. Firenze : Giunti, c1995. p. 166, n. 225 |
| Related iconography: | Galvanometro differenziale di Nobili, inv. 1185 [corredo grafico]
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| Shelfmark: | Sala 16 |
| Copy note: | Show copy note |
| 000000016880 |
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