moving-armature geophone - definitie. Wat is moving-armature geophone
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Wat (wie) is moving-armature geophone - definitie

FRAMEWORK AROUND WHICH A SCULPTURE IS BUILT
Armature (Stop Motion Animation); Armature (stop motion animation); Armature (animation)
  • Armature for Gromit of [[Wallace and Gromit]]

Armature (electrical)         
  • A schematic winding diagram for a DC machine with a commutator, showing a wave winding - shown as if the surface of the armature was flattened out
POWER-PRODUCING COMPONENT OF AN ELECTRIC MACHINE
Armature reaction drop; Armature reaction; Mush winding; Mush Winding; Lap winding; Wave winding; Armature (electrical engineering)
In electrical engineering, the armature is the winding (or set of windings) of an electric machine which carries alternating current.Stephen D.
Armature         
WIKIMEDIA DISAMBIGUATION PAGE
Armature (disambiguation)
(a.) A mass or piece of iron or steel, or a collection of pieces of iron designed to be acted on by a magnet. While nickel or cobalt might be used, they rarely or never are except in experimental apparatus. The armature of a permanent horse shoe magnet is simply a little bar of soft iron. When the magnet is not in use it is kept in contact with the poles with the idea of retaining its magnetism. It is then said to be used as a keeper. A bar magnet does not generally have an armature. The armature is also used to exhibit the attraction of the magnet. Sometimes an armature is made of steel and is permanently magnetized. Such an armature, termed a polarized armature, is repelled when its like poles are opposed to like poles of the magnet and otherwise is attracted with force due to the sums of the magnetism. If the magnet is sufficiently powerful depolarization of the armature may ensue when like poles are opposed to like poles. Polarized armatures are used in various appliances, magneto generators, telegraphic instruments and others. (b) In a dynamo or Motor the mass of laminated iron or of wire which carries the coils of insulated wires which are caused to rotate in the field of force of the field magnets in order to establish and maintain potential difference with its accompanying current, or which rotates under the effects of a current in a motor. (See Dynamo Electric Generator.) The work of the armature core is twofold. It acts as a portion of the magnetic circuit, conducting the lines of force, and by virtue of its high permeability or multiplying power concentrating a number of the lines of force through its own substance. To enable it to act with efficiency in this direction it should be made of iron of the highest permeability, and should approach as closely as possible to the armature cores consistent with leaving space for the wire winding. It next acts as a support for the wires which are to be swept through the field of force. Thus it acts both to establish a strong field and then acts as a carrier for the wires which are to be cut by the wires in question. In connection with this subject the different definitions under Armature, Dynamo, Commutator, Induction and similar topics may be consulted. (c) See Armature of Influence Machine. (d) See Armature of Leyden Jar or Static Condenser.
Geophone         
  • Geosource Inc. MD-79—8 Hz, 335 Ω geophone
  • Geophone (SM-24), frequency band 10 Hz to 240 Hz, standard resistance 375 Ω
  • Man using a geophone
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  • access-date=21 July 2017}}</ref>
  • Source Receivers single fold-3 Fold
DEVICE THAT CONVERTS GROUND MOVEMENT (VELOCITY) INTO VOLTAGE, WHICH MAY BE RECORDED AT A RECORDING STATION. THE DEVIATION OF THIS MEASURED VOLTAGE FROM THE BASE LINE IS CALLED THE SEISMIC RESPONSE AND IS ANALYZED FOR STRUCTURE OF THE EARTH.
Geophone (instrument)
A geophone is a device that converts ground movement (velocity) into voltage, which may be recorded at a recording station. The deviation of this measured voltage from the base line is called the seismic response and is analyzed for structure of the earth.

Wikipedia

Armature (sculpture)

In sculpture, an armature is a framework around which the sculpture is built, when the sculpture could not stand on its own. This framework provides structure and stability, especially when a plastic material such as wax, newspaper or clay is being used as the medium. When sculpting the human figure, the armature is analogous to the major skeleton and has essentially the same purpose: to hold the body erect.

An armature is often made of heavy, dark aluminium wire which is stiff, but can be bent and twisted into shape without much difficulty. The wire is affixed to a base which is usually made of wood. The artist then begins fleshing out the sculpture by adding wax or clay over the wire. Depending on the material and technique, the armature may be left buried within the sculpture but, if the sculpture is to be hollowed out for firing, it must1 be removed.

Large representational sculptures meant for outdoor display are typically fashioned of bronze or other types of sheet metal, and they require armatures for internal support and stability. For example, a large armature designed by Gustave Eiffel holds up the Statue of Liberty. The armature can be seen from below by visitors to the base of the sculpture's interior.