Ammeternoun
A device that measures the magnitude of an electric current, especially one calibrated in amperes.
Ammeternoun
A contraction of amperometer or ampèremeter.
Ammeternoun
a meter that measures the flow of electrical current in amperes
Ammeter
An ammeter (abbreviation of Ampere meter) is a measuring instrument used to measure the current in a circuit. Electric currents are measured in Amperes (A), hence the name.
Galvanometernoun
(physics) A device used to indicate the presence and direction of a small electric current, especially used to detect a null or balanced condition in a bridge circuit.
Galvanometernoun
An instrument or apparatus for measuring the intensity of an electric current, usually by the deflection of a magnetic needle.
Galvanometernoun
meter for detecting or comparing or measuring small electric currents
Galvanometer
A galvanometer is an electromechanical measuring instrument for electric current. Early galvanometers were uncalibrated, but improved versions, called ammeters, were calibrated and could measure the flow of current more precisely.