Results 281 to 290 of about 7,856,512 (343)

Loss estimation of magnetic gears

Electrical Engineering, 2019
Reduction in losses is essential for the efficiency enhancement of magnetic gears. In this paper, the power losses of a coaxial magnetic gear are estimated, based on a developed convenient approach for loss analysis using a time-dependent finite element model.
Valentin Mateev, Iliana Marinova
openaire   +1 more source

Recent Advances in Structural Design of Carbon/Magnetic Composites and their Electromagnetic Wave Absorption Applications.

Small
Electromagnetic pollution protection and military stealth technologies underscore the urgent need to develop efficient electromagnetic wave-absorbing materials (EWAMs).
Haiyang Peng, Da Zhang, Zhipeng Xie, Shuiqing Lu, Yichang Liu, Feng Liang   +5 more
semanticscholar   +1 more source

A finite oxidation strategy for customizing heterogeneous interfaces to enhance magnetic loss ability and microwave absorption of Fe-cored carbon microcapsules

Nano Reseach, 2023
Meixi Zhang, Laisen Wang, Susu Bao, Zhijia Song, Wenjiao Chen, Zhiyuan Jiang, Zhaoxiong Xie, Lansun Zheng   +7 more
semanticscholar   +1 more source

How Accurate are Magnetic Loss Measurements?

2024 IEEE International Magnetic Conference - Short papers (INTERMAG Short papers)
Intermag 2024 Presentation: DF: Soft Magnetic Alloys: Materials and ...
Massimo Pasquale, Enzo Ferrara, Nicoleta Banu, Fausto Fiorillo, Luciano Rocchino, Michal Ulvr, Franziska Weickert, Korbinian Pfnuer, Joachim Luedke, Katja Hoffmann, Stuart Harmon, Daniel Brunt, Adam Wilson   +12 more
openaire   +1 more source

Calculation Method of Magnetic Material Losses Under DC Bias Using Statistical Loss Theory and Energetic Hysteresis Model

IEEE transactions on magnetics, 2019
The loss prediction of magnetic materials under dc bias is of great significance for the optimization of magnetic components, because the efficiency evaluation of magnetic components involves core loss computation under dc bias.
Ren Liu, Lin Li
semanticscholar   +1 more source

Critical behaviour of magnetic losses

Physica Status Solidi (a), 1974
The critical exponent γ of the complex susceptibility χ = χ′ – iχ″ was measured in the temperature range 5 × 10−5 ≦ ϵ = |T – Tc|Tc ≦ 10−2 at frequencies between 0.1 and 20 kHz in a field of 5 mOe for very pure polycrystalline nickel. For the real part at zero frequency χ′(0) = χo(0)ϵ–γ and T > Tc γ = 1.41 ± 0.02 is obtained and χ′o(0) = (3.4 ± 0.8 ...
N. Herzum, K. Stierstadt, L. Wunsch
openaire   +1 more source

Fast 3-D Optimization of Magnetic Cores for Loss and Volume Reduction

IEEE transactions on magnetics, 2018
This paper presents an effective design method for inductors which is based on the multi-objective optimization accelerated by the artificial neural network (ANN).
S. Shimokawa, H. Oshima, K. Shimizu, Y. Uehara, J. Fujisaki, A. Furuya, H. Igarashi   +6 more
semanticscholar   +1 more source

Flux loss in nanocomposite magnets

IEEE International Magnetics Conference, 1999
The irreversible flux loss due to exposure to an elevated temperature was evaluated systematically for nanocomposite magnets with various coercivity values. It was found that the short-term and long-term flux losses in some nanocomposite magnets are smaller than in a conventional isotropic Nd-Fe-B magnet despite their small coercivity values.
Y. Kanai, S.-I. Hayashida, H. Fukunaga, F. Yamashita   +3 more
openaire   +1 more source

Magnetic losses in single-domain magnetic particles

The European Physical Journal Special Topics, 2023
Yan Mi, Chi Ma, Wei Zheng, Zhengmin Li, Mengnan Zhang   +4 more
openaire   +1 more source

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