» Magnetometer metric Bar (0422)
Immagini
DESCRIPTION
The instrument is a one meter long brass rod, preserved in a wooden box covered with fabric for transport. Equidistant from the center of the bar are two holes to fix the magnetometer, which is an additional part. On sides of the holes are etched two scales graduated in centimeters from 10 to 45 cms. For accurate measurements a vernier scale is provided. The central point is marked with a line.
On top of the meter rod is placed a carriage on a Y-shaped support, which serves to hold a deviating magnet: see ref. [1]..
This meter rod was probably a part of a Kew magnetometer, or Chistoni unifilar sine magnetometer. (see [1]).Chistoni Magnetometer. (see [1])
Picture-3 shows a figure from Chistoni [2], which depicts the meter rod mounted with Chistoni unifilar sine magnetometer.
written by TAJBIBLIOGRAPHY
- [1] M. Basso Ricci et al., "Due secoli di strumenti geomagnetici in Italia (1740-1971)", 1997 Bologna.Pagine: 146 - 151
- [2] Prof. Ciro Chistoni, "Magnetometro unifilare dei seni", Antica Tipografia Soliani, Modena, 1893
Dati Catalografici
| Data di costruzione: | --- |
|---|---|
| Data di carico: | ignoto |
| Nr. Inventario: | Ignoto (Ignoto) |
| Costruttore: | Costruttore sconosciuto |
| Materiale: | ottone |
| Dimensioni: | Scatola di legno: 103 cm x 10,5 cm x 4 cm; Barra metrica: 100 cm x 2,2 cm x 1,0 cm |
| Conservazione: | buono |