magnetic core

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magnetic core:

see computercomputer,
device capable of performing a series of arithmetic or logical operations. A computer is distinguished from a calculating machine, such as an electronic calculator, by being able to store a computer program (so that it can repeat its operations and make logical
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magnetic core

[mag′ned·ik ′kȯr]
Also known as core.
A configuration of magnetic material, usually a mixture of iron oxide or ferrite particles mixed with a binding agent and formed into a tiny doughnutlike shape, that is placed in a spatial relationship to current-carrying conductors, and is used to maintain a magnetic polarization for the purpose of storing data, or for its nonlinear properties as a logic element. Also known as memory core.
A quantity of ferrous material placed in a coil or transformer to provide a better path than air for magnetic flux, thereby increasing the inductance of the coil and increasing the coupling between the windings of a transformer.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


core, 6
1. The center of a plywood or crossbanded construction; it may consist of lumber (solid or glued) or particleboard; serves as a base for veneer.
2. The internal structure in a hollow-core door.
3. The wood chips cut from a mortise.
4. The metal bar to which a handrail is attached.
5. The internal structure which serves as a base for complex plasterwork.
6. The molded open space in a concrete masonry unit.
7. The filling within a thick hollow stone wall.
8. The filling between a lintel and relieving arches.
9. A cylindrical sample of hardened concrete or rock obtained by means of a core barrel and drill.
10. A part of a multistory building, containing a variety of service and utility functions, as elevators, stairwells, etc.
11. That part of a magnetic circuit (usually steel or iron laminations) about which are wound coils in electromagnetic devices such as transformers, solenoids, relays, etc.; a magnetic core.
12. (Brit.) The conductor of a cable with its insulation, but not including any outer protective covering.
13. That portion of a grille, 2 contained within the frame.
14. Of gypsum board, the hardened material filling the space between a face paper and a back paper; consists primarily of gypsum with additives.
15. (British) Same as blockout.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Magnetic core can enter saturation due to the use of SST.
This winding can be situated without problems in the magnetic core, with sidelong h=25 mm, and width b=150 mm.
This has proved to be difficult due to the fact that the photocatalytic activity of the nanoparticles shows a decline when the magnetic cores experience photodissolution [16].
According to the basic theory of electromechanics [18], the secondary side voltage of the magnetic core ([E.sub.2]) could be expressed as
The goal of the work is the development of a numerical method for calculating mechanical characteristics under different laws of changing the supply voltage of the IM and its frequency using a mathematical model based on the equation of the electromagnetic equilibrium of the motor circuits, which make it possible to take into account the saturation of the magnetic core and the displacement of the current in the rods of the squirrel-cage rotor.
The magnetic length and the cross section area of the magnetic core are [I.sub.e] and [S.sub.e], respectively.
It consists of three magnetic cores, each carrying one primary coil and five secondary coils as shown in Figure 2.
The fluxgate probe mainly consists of magnetic core, excitation coils, pick-up coils, feedback coils, and framework and chassis used to support magnetic core and coils.
Consequently, inorganic Si[O.sub.2] has been used as a shell to protect magnetic cores [15, 16], although such a shell may also significantly reduce magnetism.
Figure 3 shows the X-rays diffraction (XRD) results of the magnetic nanoparticle core before and after CdSe heterocoagulation by seed-mediated growth method and before the thermal treatment used to anneal the magnetic core. The diffraction patterns analyses were performed using the shape profile module with the Lorentz function to fit the XRD profiles by the TOPAS 4.1 software.
In the process, we build buy-in and trust by amplifying community strengths, and by discovering anew the magnetic core that drew everyone into a common purpose in the first place.
Once collected about the magnetic core of the plug these particles are separated from lubricating/hydraulic oil and are thus not able to cause further wear or damage.