Results 101 to 110 of about 6,007 (209)

Torque Production in a Halbach Machine [PDF]

The NASA John H. Glenn Research Center initiated the investigation of torque production in a Halbach machine for the Levitated Ducted Fan (LDF) Project to obtain empirical data in determining the feasibility of using a Halbach motor for the project.
Eichenberg, Dennis J., Gallo, Christopher A., Thompson, William K., Vrnak, Daniel R.   +3 more
core   +1 more source

Evolution of the Spin Hall Magnetoresistance in Cr$_2$O$_3$/Pt bilayers close to the N\'eel temperature

, 2017
We study the evolution of magnetoresistance with temperature in thin film bilayers consisting of platinum and the antiferromagnet Cr$_2$O$_3$ with its easy axis out of the plane.
Fabretti, Savio, Goennenwein, Sebastian T. B., Kosub, Tobias, Makarov, Denys, Nielsch, Kornelius, Schlitz, Richard, Thomas, Andy   +6 more
core   +1 more source

Analysis and Optimization of a Moving Magnet Permanent Magnet Synchronous Planar Motor with Split Halbach Arrays

Energies
This paper investigates an improved permanent magnet synchronous planar motor (PMSPM) featuring a moving magnet configuration to enhance thrust density and positioning accuracy.
Ronglu Wang, Lu Zhang, Chenyang Shi, Chunqiu Zhao, Kai Yang   +4 more
doaj   +1 more source

Force and Torque Model of Magnetically Levitated System with 2D Halbach Array and Printed Circuit Board Coils. [PDF]

Sensors (Basel), 2023
Zou M, Song M, Zhou S, Xu X, Xu F.
europepmc   +1 more source

Robust High-Dynamic-Range Vector Magnetometry via Nitrogen-Vacancy Centers in Diamond

, 2018
We demonstrate a robust, scale-factor-free vector magnetometer, which uses a closed-loop frequency-locking scheme to simultaneously track Zeeman-split resonance pairs of nitrogen-vacancy (NV) centers in diamond.
Budker D., Carson Teale, Danielle Braje, Dirk Englund, Hannah Clevenson, Kerry Johnson, Linh M. Pham   +6 more
core   +1 more source

Three-Dimensional Modelling and Validation for the Ultra-High-Speed EDS Rocket Sled with PM Halbach Array

Actuators
The ultra-high-speed rocket sled plays an important role in the ground test by simulating altitude flight. Rocket sleds can only be lifted for a short time with thermally uninsulated superconductors moving among an eddy-current-induced copper array.
Yongpan Hu, Baojun Chen, Guobin Lin, Zhiqiang Wang   +3 more
doaj   +1 more source

An integrated target field framework for point-of-care halbach array low-field MRI system design. [PDF]

MAGMA, 2023
de Vos B, Remis RF, Webb AG.
europepmc   +1 more source

Measurement of the neutron lifetime using an asymmetric magneto- gravitational trap and in situ detection

, 2018
The precise value of the mean neutron lifetime, $\tau_n$, plays an important role in nuclear and particle physics and cosmology. It is a key input for predicting the ratio of protons to helium atoms in the primordial universe and is used to search for ...
Adamek, E. R., Broussard, L. J., Callahan, N. B., Clayton, S. M., Cude-Woods, C., Currie, S. A., Dees, E. B., Ding, X., Engel, E. M., Fellers, D. E., Fox, W., Geltenbort, P., Hickerson, K. P., Hoffbauer, M. A., Holley, A. T., Komives, A., Liu, C. Y., MacDonald, S. W. T., Makela, M., Morris, C. L., Ortiz, J. D., Pattie, R. W., Ramsey, J., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sjue, S. K., Tang, Z., Vanderwerp, J., Vogelaar, B., Walstrom, P. L., Wang, Z., Weaver, H. L., Wei, W., Wexler, J. W., Womack, T. L., Young, A. R., Zeck, B. A.   +38 more
core   +1 more source

Design and Analysis of a 2-DOF Electromagnetic Actuator with an Improved Halbach Array for the Magnetic Suspension Platform. [PDF]

Sensors (Basel), 2022
Yang F, Zhao Y, Li H, Mu X, Zhang W, Yue H, Liu R.   +6 more
europepmc   +1 more source

Electromagnetic vibration energy harvesting using an improved Halbach array

This paper reports an electromagnetic vibration energy harvester using an improved Halbach array. A Halbach array is a specific arrangement of permanent magnets that concentrates the magnetic field on one side of the array while cancelling the field on ...
Beeby, S.P., Harris, N.R., Tudor, M.J., Zhu, Dibin   +3 more
core