Active and passive magnetic shielding for stray field reduction of an induction heater with axial flux

2005 ◽  
Vol 152 (5) ◽  
pp. 1359 ◽  
Author(s):  
P. Sergeant ◽  
L. Dupre ◽  
J. Melkebeek
Keyword(s):  
Magnetic Shielding ◽  
Stray Field ◽  
Axial Flux ◽  
Induction Heater

Field Distribution of Strongly Excited Magnetic Lenses

1975 ◽  
Vol 33 ◽  
pp. 140-141
Author(s):  
M. Strojnik
Keyword(s):  
Flux Density ◽  
Field Distribution ◽  
Optical Axis ◽  
Operating Point ◽  
Pole Piece ◽  
Partial Saturation ◽  
Axial Flux ◽  
The Stability

Magnetic lenses operating in partial saturation offer two advantages in HVEM: they exhibit small cs and cc and their power depends little on the excitation IN. Curve H, Fig. 1, shows that the maximal axial flux density Bz max of one of the lenses investigated changes between points (3) and (4) by 5% as the excitation varies by 40%. Consequently, the designer can relax the requirements concerning the stability of the lens current supplies. Saturated lenses, however, can only be used if (i) unwanted fields along the optical axis can be controlled, (ii) 'wobbling' of the optical axis due to inhomogeneous saturation around the pole piece faces is prevented, (iii) ample ampere-turns can be squeezed into the space available, and (iv) the lens operating point covers a sufficient range of accelerating voltages.

BLENDALLOY 25-7904

Alloy Digest ◽  
1972 ◽  
Vol 21 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Coercive Force ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Magnetic Shielding ◽  
High Permeability ◽  
Magnetic Cores ◽  
Very High

Abstract BLENDALLOY 25-7904 is an 80% nickel-15% iron-5% molybdenum alloy having very high permeability and low coercive force for magnetic cores in such applications as transformer laminations, sensitive magnetic amplifiers and magnetic shielding. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-181. Producer or source: Spang Industries Inc..

The Peculiar Features of Cognitive Processes in Rats Exposed to a Hypomagnetic Field Using Moderate Magnetic Shielding

BIOPHYSICS ◽  
2020 ◽  
Vol 65 (5) ◽  
pp. 876-882
Author(s):  
D. R. Khusainov ◽  
I. I. Korenyuk ◽  
V. I. Shakhmatova ◽  
K. N. Tumanyants ◽  
N. S. Tribrat ◽  
...  
Keyword(s):  
Cognitive Processes ◽  
Magnetic Shielding ◽  
Hypomagnetic Field

Magnetization Reversal of Ferromagnetic CoFeB Films and CoFeB/Ta/CoFeB Heterostructures in the Stray Field of Fe/Fe3O4 Nanoparticles

2020 ◽  
Vol 131 (4) ◽  
pp. 607-617
Author(s):  
O. V. Koplak ◽  
E. I. Kunitsyna ◽  
R. S. Allayarov ◽  
S. Mangin ◽  
N. V. Granovskii ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Fe3o4 Nanoparticles ◽  
Stray Field
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