The collection - Earth Magnetism
Some of the instruments presented here were used to measure the Earth magnetic field in the polar years 1932-1933 and the others were installed during the International Geophysics Year (1957-1958) and still in use in French observatories in the southern hemisphere until 1980.
Here under is a brief view of some instruments of the collection. However, if you want to know how they work, just select them within the list on the left.
- Schmidt's field balance (Vertical)
- Rothé-Carpentier's balance
- Quartz horizontal magnetometer: Q.H.M. (1952)
- La Cour's variometer (declinometer)
- Chasselon's magnetic theodolite (1930)
- Chasselon's magnetic theodolite (1956)
- Cambridge dip inductor
- Quartz horizontal magnetometer: Q.H.M. (1952)
