permanent-magnet moving-coil galvanometer

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• Galvanometer — D Arsonval/Weston galvanometer movement with the moving coil shown in red. A galvanometer is a type of ammeter: an instrument for detecting and measuring electric current. It is an analog electromechanical transducer that produces a rotary… …   Wikipedia

• galvanometer — /gal veuh nom i teuhr/, n. an instrument for detecting the existence of small electric currents and determining their strength. [1795 1805; GALVANO + METER] * * * Instrument for measuring small electric currents by deflection of a moving coil. A… …   Universalium

• d'arsonval galvanometer — noun Usage: usually D Arsonval : a moving coil galvanometer whose coil is provided with a filament suspension or with pivots and hairspring and rotates about a stationary soft iron core between the poles of a strong permanent magnet * * * /dahr… …   Useful english dictionary

• Voice coil — A voice coil (consisting of a bobbin, collar and winding) is the coil of wire attached to the apex of the cone of a loudspeaker. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. The… …   Wikipedia

• Voltmeter — Demonstration voltmeter from a physics class A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage… …   Wikipedia

• магнитоэлектрический гальванометр — гальванометр с подвижной катушкой [IEV number 313 01 30] EN moving coil galvanometer galvanometer in which a coil carrying a current moves in the field of a permanent magnet [IEV number 313 01 30] FR galvanomètre… …   Справочник технического переводчика

• Ammeter — Amperemeter redirects here. For the unit of measurement, see Ampere meter. Demonstration model of a moving iron ammeter. As the current through the coil increases, the plunger is drawn further into the coil and the pointer deflects to the right …   Wikipedia

• Faraday's law of induction — For the relationship between a time varying magnetic field and an induced electric field, see Maxwell s equations. Electromagnetism …   Wikipedia

• Oscilloscope history — This article discusses the history and gradual development of the Oscilloscope. Contents 1 Hand drawn oscillograms 2 Automatic paper drawn oscillograph 3 Photographic oscillograph 4 …   Wikipedia

• Protective relay — See also: Power system protection In electrical engineering, a protective relay is a complex electromechanical apparatus, often with more than one coil, designed to calculate operating conditions on an electrical circuit and trip circuit breakers …   Wikipedia

• oscillograph — oscillographic, /euh sil euh graf ik/, adj. oscillography /os euh log reuh fee/, n. /euh sil euh graf , grahf /, n. Elect. a device for recording the wave forms of changing currents, voltages, or any other quantity that can be translated into… …   Universalium