galvanometer
Noun
Meaning
An instrument or apparatus for measuring the intensity of an electric current, usually by the deflection of a magnetic needle.
Source: Webster's dictionarySynonyms
Hypernyms
Hyponyms
Phrases with the word
Examples
A 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.
An early D'Arsonval galvanometer showing magnet and rotating coil.
A tangent galvanometer consists of a coil of insulated copper wire wound on a circular non-magnetic frame.
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.
He used a galvanometer to measure current, and knew that the voltage between the thermocouple terminals was proportional to the junction temperature.
History Thomson mirror galvanometer, patented in 1858.