1791,1820 Galvanometer

The book of science

Tom Sharp

Luigi Galvani, Hans Christian Ørsted, Johann Schweigger electromagnetism


Personal connections

Moving the dial

Galvanometers not only detect but measure the strength and direction of an electric current. Galvanometer mechanisms are also used in other analog meters for visualizing the outputs of other sensors.

See also in The book of science:

Readings on wikipedia: