Evershed, Sydney. 1925. Permanent magnets in theory and practice [part two]. Journal of the Institution of Electrical Engineers 63: 725-810, discussion 810-21.Evershed, S. : Permanent Magnets in Theory and Practice. J. of the I.E.E. 58 (1920) pp. 780 and 63 (1925) p. 725....
The development of permanent magnet motors is closely related to the development of permanent magnet materials. my country is the first country in the world to discover the magnetic properties of permanent magnet materials and apply them to practice. More than two thousand years ago, my country ma...
[2] P. P. Acarnley.Stepping Motors: A Guide to Modern Theory and Practice. New York: Peregrinus, 1982. [3] S.E. Lyshevski.Electromechanical Systems, Electric Machines, and Applied Mechatronics. CRC, 1999. Extended Capabilities C/C++ Code Generation ...
14. A machine as claimed in claim 3 characterized in that the permanent magnets (12a) of the poles (11) are supported on radial platforms (25). 15. A machine as claimed in claim 14 characterized in that the platforms (25) and the shunts (17) are integral parts of a common ferromagn...
not only stabilize the ThMn12-type SmFe12 and Sm(Fe,Co)12 phases thermodynamically but also further improve their intrinsic magnetic properties such that they are superior to those of the widely investigated SmFe11Ti and Sm(Fe,Co)11Ti magnets, and even to the state-of-the-art permanent ma...
The mechanical energy conservation law is not only proved by theory, but also proved by practice. But when using the mechanical energy conservation law, we doubt about heat death it rising. The misgivings bring the new thought about the mechanical energy conservation law. Start with the premise ...
Oxidative roasting of Nd–Fe‒B permanent magnets prior to leaching improves the selectivity in the recovery of rare-earth elements over iron. Ho
electrostatic charges remain on and in the wax even after field removal, and these residual charges can be maintained over an extended period of time, if they are placed under good conditions. This, because of appearing to correspond to permanent magnets due to magnetism, was called an electre...
In both cases, there is only one source that can be controlled, which is the stator currents. On the synchronous machine, the rotor excitation is given by the permanent magnets mounted onto the shaft. On the synchronous motor, the only source of power and magnetic field is the stator phase...
No abstract is available for this article.doi:10.1002/phbl.19790350913SchülerKarlJohn Wiley & Sons, Ltd.Physikalische BltterSchuler K. McCaig: Permanent magnets in theory and practice. Physikalische Blatter 1979;35:423. DOI: 10.1002/phbl.19790350913....