moving-coil - définition. Qu'est-ce que moving-coil
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Qu'est-ce (qui) est moving-coil - définition

DEVICE USED FOR MEASURING ELECTRIC CURRENT
Ampmeter; Ameter; Amperemeter; Moving coil meter; Microammeter; Ampermeter; Ampermetre; Ampere-meter; Amperimeter; Moving-coil; Ampere meter; Shunt Resistor; Ammeters; Moving-coil meter; Moving-coil ammeter; Moving-iron ammeter; Hot-wire ammeter; Moving-iron meter; Milliammeter; Amp meter; Micro-ammeter; Picoammeter; Pico-ammeter; Femtoammeter; Femto-ammeter; Nanoammeter; Nano-ammeter; Milli-ammeter; Meter movement; Thermal-ammeter
  • A hot-wire ammeter
  • Penn Station]] terminal service plant in [[New York City]]
  • Ammeter from the University of Dundee Physics Department
  • 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.
  • Ayrton shunt switching principle
  • An integrating current meter calibrated in Ampere-hours or charge
  • <span style="color:red;">Wire carrying current to be measured.</span><br /><span style="color:green;">Spring providing restoring force</span><br />This illustration is conceptual; in a practical meter, the iron core is stationary, and front and rear spiral springs carry current to the coil, which is supported on a rectangular bobbin. Furthermore, the poles of the permanent magnet are arcs of a circle.
  • Face of an older moving iron ammeter with its characteristic non-linear scale. The moving iron ammeter symbol is in the lower-left corner of the meter face.
  • Zero-center ammeter

moving-coil         
¦ adjective (of an electrical device such as a voltmeter or microphone) containing a wire coil suspended in a magnetic field, so that the coil either moves in response to a current or produces a current when it is made to move.
Winding         
  • Diagram of typical transformer configurations
  • In a coil of multiple turns of wire the magnetic field of the turns adds in the center of the coil, creating a strong field.  This drawing shows a cross section through the center of the coil.  The crosses are wires in which current is moving into the page; the dots are wires in which current is emerging from the page.
ELECTRICAL COMPONENT
Magnetic coil; Winding; Windings in electric machinery; Electromagnetic Coil; Coil (electrical engineering); Windings; Coil (electromagnetism)
·noun A call by the boatswain's whistle.
II. Winding ·p.pr. & ·vb.n. of Wind.
III. Winding ·p.pr. & ·vb.n. of Wind.
IV. Winding ·p.pr. & ·vb.n. of Wind.
V. Winding ·adj Twisting from a direct line or an even surface; circuitous.
VI. Winding ·noun A turn or turning; a bend; a curve; flexure; meander; as, the windings of a road or stream.
VII. Winding ·add. ·noun The material, as wire or rope, wound or coiled about anything, or a single round or turn of the material;.
VIII. Winding ·noun A line- or ribbon-shaped material (as wire, string, or bandaging) wound around an object; as, the windings (conducting wires) wound around the armature of an electric motor or generator.
IX. Winding ·add. ·noun a series winding, or one in which the armature coil, the field-magnet coil, and the external circuit form a continuous conductor; a shunt winding, or one of such a character that the armature current is divided, a portion of the current being led around the field-magnet coils.
winding         
  • Diagram of typical transformer configurations
  • In a coil of multiple turns of wire the magnetic field of the turns adds in the center of the coil, creating a strong field.  This drawing shows a cross section through the center of the coil.  The crosses are wires in which current is moving into the page; the dots are wires in which current is emerging from the page.
ELECTRICAL COMPONENT
Magnetic coil; Winding; Windings in electric machinery; Electromagnetic Coil; Coil (electrical engineering); Windings; Coil (electromagnetism)
I. n.
Flexure, turning, meandering, twisting, twist, convolution, contortion, sinuosity, curvature, tortuosity, bend, crook, kink, crookedness.
II. a.
Flexuous sinuous, meandering, serpentine, bending, curving.

Wikipédia

Ammeter

An ammeter (abbreviation of Ampere meter) is an instrument used to measure the current in a circuit. Electric currents are measured in amperes (A), hence the name. For direct measurement, the ammeter is connected in series with the circuit in which the current is to be measured. An ammeter usually has low resistance so that it does not cause a significant voltage drop in the circuit being measured.

Instruments used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters. Early ammeters were laboratory instruments that relied on the Earth's magnetic field for operation. By the late 19th century, improved instruments were designed which could be mounted in any position and allowed accurate measurements in electric power systems. It is generally represented by letter 'A' in a circuit.