33.Magnetics by John G. Webster (Editor)

By John G. Webster (Editor)

Show description

Read Online or Download 33.Magnetics PDF

Similar electricity and magnetism books

Lehrbuch der Experimentalphysik Bd. 2. Elektromagnetismus

This introductory textbook, now in its ninth version, is an perfect accompaniment for physics scholars in either their easy and higher-level classes. It in actual fact lays out the elemental rules of electrical energy and magnetism in an simply comprehensible demeanour. various descriptions and illustrations of experiments give you the foundation for potent examination instruction.

Electromagnetic Analysis Using Transmission Line Variables

Difficulties in electromagnetic propagation, particularly people with advanced geometries, have often been solved utilizing numerical equipment, equivalent to the tactic of finite changes. regrettably the mathematical tools be afflicted by an absence of actual charm. The researcher or dressmaker usually loses sight of the physics underlying the matter, and alterations within the mathematical formula are usually no longer identifiable with any actual swap.

Additional info for 33.Magnetics

Example text

25 in) solid ferrite tile at 0Њ and 45Њ incident angles. t = a + 1−g g 1 + − 2 a a 0 and impedance and propagation constant [for details, see (3,6,16a)]. Figure 1 shows the reflectivity of a solid ferrite tile and the material properties are given in Table 1. The figure shows that the tile performs very well below 600 MHz, but above 600 MHz, the tile performance deteriorates. The higher frequency (Ͼ600 MHz) performance is improved by using so-called ‘‘ferrite grids’’. A ferrite grid (or waffle) is shown in Fig.

Mat. Eng. Performance, 1 (2): 236–244, 1992. 12. Y. Alinejad-Beromi A. J. Moses T. Meydan New aspects of rotating field and flux measurement in electrical steel, J. Magn. Mag. , 112: 135–138, 1992. 13. A. J. Moses Effect of stresses on magnetic properties of siliconiron laminations. J. Mat. , 9: 217–222, 1974. 14. A. J. Moses P. S. Phillips Some effect of stress in Goss-oriented silicon iron, IEEE Trans. , 14: 353–355, 1978. 15. D. A. Ball H. O. Lorch An improved thermometric method of measuring local power dissipation, J.

2 Eddy Current Losses Figure 3. Deterioration of power loss and permeability of grainoriented silicon steel with direction of magnetization relative to the rolling direction. Figure 1. Variation of properties of iron alloys with silicon content. Figure 2. Schematic representation of grain-oriented electrical steel sheet. P. Goss). 2% silicon by weight. A crucial factor in developing good magnetic properties is to control the impurity level during the steel production process. Certain impurities such as manganese sulfide (MnS) or aluminum nitride (AlN) are needed in the development of the [001](110) texture so they must be removed in a subsequent anneal.

Download PDF sample

Rated 4.04 of 5 – based on 4 votes