Noun
An instrument or apparatus for measuring the intensity of an electric current, usually by the deflection of a magnetic needle.
Source: Webster's dictionaryA circuit was used consisting of a battery, the body to be tested, and a galvanometer; the electromotive force of the battery used was 1 volt at first, then 100 volts, and then again 1 volt. Source: Internet
An early D'Arsonval galvanometer showing magnet and rotating coil. Source: Internet
A tangent galvanometer consists of a coil of insulated copper wire wound on a circular non-magnetic frame. Source: Internet
He used a galvanometer as a sensitive timing device, attaching a mirror to the needle to reflect a light beam across the room to a scale which gave much greater sensitivity. Source: Internet
He used a galvanometer to measure current, and knew that the voltage between the thermocouple terminals was proportional to the junction temperature. Source: Internet
History Thomson mirror galvanometer, patented in 1858. Source: Internet