Results 31 to 40 of about 3,048 (180)

A Short and Light, Sparse Dipolar Halbach Magnet for MRI

open access: yesIEEE Access, 2021
Recently designed dipolar Halbach magnets used in portable MRI systems are much lighter and more compact than standard permanent or superconductive magnets.
Aaron R. Purchase   +7 more
doaj   +1 more source

Single-sided mobile NMR with a Halbach magnet [PDF]

open access: yesMagnetic Resonance Imaging, 2006
A single-sided mobile NMR apparatus with a small Halbach magnet was constructed for the first time. It is lightweight, compact and exhibits good sensitivity. The weight of the device is only 2 kg, and the NMR signal of the pencil eraser block can be detected in one shot using the device.
Chang, Wei-Hao   +2 more
openaire   +2 more sources

Optimum Design for Slot-type of Stator Based on PM Motor with Halbach Structure

open access: yesMATEC Web of Conferences, 2015
The performance of permanent magnet motor is directly influenced by the PM structure of rotor and the slot type of stator. An emerging rotor magnetization type of PM motor is Halbach structure, which has obvious advantages in comparison to ordinary ...
Zhu Yongxin, Qiao Mingzhong
doaj   +1 more source

Hybrid manufacturing of Halbach arrays using sintered NdFeB magnets and additively manufactured soft magnet frames [PDF]

open access: yesAIP Advances
Using sintered neodymium–iron–boron (NdFeB) cube magnets and additively manufactured polylactic acid (PLA) and steel frames, we investigate hybrid manufacturing approaches for enhancing magnetic fields in cylindrical Halbach arrays while reducing ...
Levi Cosgrove   +6 more
doaj   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe   +4 more
wiley   +1 more source

Analytical Modeling and Analysis of High-Torque-Density Three-Segment Halbach Array PM Machine by Considering Leakage Flux

open access: yesMachines
Conventional finite element method (FEM) has a complex model and a long optimization time for Halbach array PM machines. This paper proposes a hybrid analytical method that combines the subdomain method (SM) and the magnetic circuit method (MEC) for ...
Jinlin Huang, Qingfeng Sun, Chen Wang
doaj   +1 more source

Research on the orientation structure of permanent ferrite multi-polar magnet ring

open access: yes上海师范大学学报. 自然科学版, 2019
The Halbach array structure was innovatively applied to the orientation structure of the injection mold of the anisotropic ferrite multi-polar magnet ring for the contrastive study of the ordinary radial oriented structure and Halbach array oriented ...
CHEN Wei, WANG Yunxiang, LI Gang
doaj   +1 more source

Permanent magnet dipole with strong in-plane magnetic field

open access: yesAIP Advances, 2021
In this article, we present a permanent magnet dipole design with strong in-plane, open access magnetic field. The design starts with a Halbach structure.
Chun Li   +3 more
doaj   +1 more source

A Data‐Driven Inverse Design Methodology for Magnetic Soft Millirobots Navigating in Confined Spaces

open access: yesAdvanced Science, EarlyView.
A data‐efficient inverse design framework automates the optimization of magnetic soft millirobots for confined‐space navigation. Integrating a physics‐based Cosserat rod model with Bayesian optimization efficiently identifies high‐performance geometries.
Ziyu Ren   +5 more
wiley   +1 more source

Experimental Validation of a Modified Halbach Array for Improved Electrodynamic Suspension Efficiency

open access: yesEnergies
In this work, we present an experimental validation of a modified Halbach array magnet configuration for passive electrodynamic suspension (EDS) systems. The study builds upon previous research that indicated improved lift-to-drag performance and reduced
Tomasz Kublin   +2 more
doaj   +1 more source

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