Results 261 to 270 of about 3,231,062 (301)

New Magnetic Core Loss Comparator

Journal of Applied Physics, 1958
A new method has been developed for the rapid measurement of magnetic flux density and power loss in single sheet steel specimens. In use the sheet specimen is inserted into an exciting unit which generates an ac magnetomotive force to provide the required flux density.
R. E. Tompkins, L. H. Stauffer, A. Kaplan   +2 more
openaire   +1 more source

Apparent core losses and core losses in five-limb amorphous transformer of 160 kVA

IEEE Transactions on Magnetics, 1998
Significant modifications of the shape of magnetic flux in columns and yokes were observed in the magnetic circuit of four amorphous cores used in a 3-phase transformer. The magnetic losses measured experimentally were significantly higher than the ones calculated theoretically.
S. Sieradzki, R. Rygal, M. Soinski
openaire   +1 more source

Estimation of Core Loss in Fe-Ni Powder Cores

2024 IEEE International Magnetic Conference - Short papers (INTERMAG Short papers)
Intermag 2024 Presentation: VP14: Soft Magnetic ...
Mai Phuong Nguyen, Shigeyoshi Yoshida, Satoshi Okamoto, Takamichi Miyazaki, and Yasushi Endo   +4 more
openaire   +1 more source

Intersheet eddy-current loss in laminated cores

Electrical Engineering, 1937
CORE LOSS in laminated structures subjected to an alternating magnetomotive force is made up of a hysteresis loss and an eddy-current loss. In modern power transformers the eddy-current loss is approximately 1/4 to 1/3 of the total loss.
L. V. Bewley, Hillel Poritsky
openaire   +1 more source

Core loss in amorphous cut cores with air gaps

IEEE Transactions on Magnetics, 1989
The effects of air gaps on the high-frequency core loss in cut cores made of amorphous ribbons are discussed and methods to reduce the core loss in them are proposed. It has been found that the high-frequency core loss in amorphous cut cores with air gaps increases strikingly with increasing air-gap length. The increase in the core loss due to air gaps
H. Fukunaga, T. Eguchi, Y. Ohta, H. Kakehashi   +3 more
openaire   +1 more source

Magnetic loss analysis in Mn–Zn ferrite cores

Journal of Magnetism and Magnetic Materials, 2006
Abstract Magnetic losses have been measured and analyzed upon a wide range of frequencies in Mn–Zn ferrite ring cores. Exploiting the concept of loss separation and modeling the conductivity process in the heterogeneous material as a function of frequency, the role of the different energy dissipation mechanisms has been elucidated.
BEATRICE, CINZIA, BOTTAUSCIO, ORIANO, CHIAMPI M, FIORILLO F, MANZIN, ALESSANDRA   +4 more
openaire   +3 more sources

Core-shell heterogeneous graphene-based aerogel microspheres for high-performance broadband microwave absorption via resonance loss and sequential attenuation

Chemical Engineering Journal, 2022
Fanbin Meng
exaly  

Low loss multi-core anti-resonant hollow core fibre

Frontiers in Optics + Laser Science 2024 (FiO, LS)
We report a three-core hollow core optical fibre, with low loss guidance at visible and near-infrared wavelengths. Coupling between cores is very weak, while the breaking of rotational symmetry yields fabrication insights.
Robbie Mears, Kerrianne Harrington, William J Wadsworth, Jonathan C Knight, James M Stone, Tim A Birks   +5 more
openaire   +1 more source

Induction motor core losses

Journal of the American Institute of Electrical Engineers, 1920
P. L. Alger, R. Eksergian
openaire   +1 more source

Improved permeability and core loss of amorphous FeSiB /Ni-Zn ferrite soft magnetic composites prepared in an external magnetic field

Journal of Alloys and Compounds, 2021
Jiasong Chang, Xiaoling Peng, Jing Li
exaly