Elliptical Halbach magnet and gradient modules for low‐field portable magnetic resonance imaging
Sign Up to like & getrecommendations! Published in 2024 at "NMR in Biomedicine"
DOI: 10.1002/nbm.5258
Abstract: This study aims to develop methods to design the complete magnetic system for a truly portable MRI scanner for neurological and musculoskeletal (MSK) applications, optimized for field homogeneity, field of view (FoV), and gradient performance… read more here.
Keywords: field; halbach; gradient; magnet gradient ... See more keywords
Design and experiment of human hand motion driven electromagnetic energy harvester using dual Halbach magnet array
Sign Up to like & getrecommendations! Published in 2017 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/aa573f
Abstract: We present a dual Halbach array electromagnetic energy harvester that generates significant power from hand shaking vibration. The magnetic-spring configuration is employed for generating sufficient power from the hand motion of irregular and low-frequency vibrations.… read more here.
Keywords: array; frequency; vibration; halbach ... See more keywords
Feature Investigation of a Segmented Pole Quasi-Halbach Tubular-Linear Synchronous Machine
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3145989
Abstract: The paper is aimed at an investigation of the features of a tubular-linear synchronous quasi-Halbach machine (T-LSM) where the radially-magnetized PMs are substituted by four equal segments with parallel magnetization. This substitution is done in… read more here.
Keywords: halbach; linear synchronous; machine; tubular linear ... See more keywords
3-D Analytical Model of Axial-Flux Permanent Magnet Machine With Segmented Multipole-Halbach Array
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2022.3233922
Abstract: This paper presents a 3-D analytical model of an axial-flux permanent magnet (AFPM) machine with a segmented multipole-Halbach PM array. Closed-form solutions are self-consistently derived in terms of modified Bessel functions of the first- and… read more here.
Keywords: axial flux; model axial; halbach; analytical model ... See more keywords
Efficiency Improvement of Permanent Magnet BLDC With Halbach Magnet Array for Drone
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2020.2971672
Abstract: In this paper, the outer rotor permanent magnet brushless DC motor (BLDC) with halbach magnet array was studied to improve the power characteristics of BLDC for drones. First, the BLDC motor applied to the currently… read more here.
Keywords: halbach; magnet array; model; magnet ... See more keywords
Multiphase PM Machines With Halbach Array Considering Third Harmonic Flux Density
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2018.2886797
Abstract: For the five-phase permanent magnet (PM) machines with conventional Halbach array rotor, although the third harmonic current is injected into the phase current, the torque density hardly increases due to the absence of the third… read more here.
Keywords: flux density; halbach array; halbach;
Design and Experiments of a Novel Halbach-Cylinder-Based Magnetic Skin: A Preliminary Study
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3147904
Abstract: Robotic tactile sensing plays a vital role in realizing the precise perception of complex environments, affecting the application of robots in a wide range of industrial and household fields. However, existing tactile sensors are limited… read more here.
Keywords: halbach; skin; novel halbach; cylinder based ... See more keywords
A Portable Halbach NMR Sensor for Detecting the Moisture Content of Soybeans
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3181266
Abstract: We report a low-field (160 mT) and lightweight (2.45 kg) Halbach nuclear magnetic resonance (NMR) sensor for non-destructive measurement of soybean moisture content (MC) on site. The sensor was composed of Halbach magnets and a… read more here.
Keywords: inline formula; halbach; sensor; tex math ... See more keywords
Optimal Halbach Magnet Array Design for Portable NMR Targeting Multiphase Flow Metering Applications
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2018.2877603
Abstract: In this paper, a Halbach array-based nuclear magnetic resonance device for multiphase flow measurement is suggested. The design approach used simultaneously a 3-D finite-element method (FEM)-based software combined with particle swarm optimization algorithm. The goal… read more here.
Keywords: array; multiphase flow; halbach; magnet array ... See more keywords
Design Considerations of High-Speed PMSM With Nonuniform Two-Segment Halbach Magnet Array
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2024.3406872
Abstract: Halbach magnet array has been widely used in high-speed permanent magnet synchronous machines (PMSMs) due to the possibility of creating a highly sinusoidal air gap magnetic field. However, conventional Halbach arrays often adopt magnet segments… read more here.
Keywords: halbach magnet; halbach; magnet; magnet array ... See more keywords
Analysis and Structure Optimization of Radial Halbach Permanent Magnet Couplings for Deep Sea Robots
Sign Up to like & getrecommendations! Published in 2018 at "Mathematical Problems in Engineering"
DOI: 10.1155/2018/7627326
Abstract: Permanent magnet couplings (PMCs) can convert the dynamic seal of transmission shaft into a static seal, which will significantly improve the transmission efficiency and reliability. Therefore, the radial Halbach PMC in this paper is suitable… read more here.
Keywords: deep sea; permanent magnet; magnet couplings; halbach ... See more keywords