NDLI: Drag torque on slowly rotating high temperature superconductor in non-axisymmetric magnetic field

Content Provider	IEEE Xplore Digital Library
Author	Ku Bui Ma Wu, P.M. Postrekhin, Y. Ye, H. Johansen, T. Wei-Kan Chu
Copyright Year	1965
Abstract	To further understand the relationship between the residual loss and the deviations of the magnetic field from perfect axisymmetry in a superconductor magnetic bearing, the drag torque acting on a high temperature superconductor slowly rotating in a nonaxisymmetric magnetic field was studied. A circular YBaCuO disk is rotated about its central axis, in the presence of a nonaxisymmetric magnetic field created from a pair of coils placed in its vicinity. This nonaxisymmetric field is either a uniform, or a uniform gradient magnetic field perpendicular to the axis of rotation of the YBaCuO disk. The torque exerted by the coils on the YBaCuO disk was monitored as a function time as the rotation proceeds, for different values of the current being passed through the coil. This torque exhibits periodic variations with a nonzero mean drag component which can be related to power loss, while the periodic variations were found to be connected to initial conditions and/or nonuniformity of the YBaCuO disk itself.
Sponsorship	IEEE Magnetics Society
Starting Page	2874
Ending Page	2876
Page Count	3
File Size	70747
File Format	PDF
ISSN	00189464
Volume Number	37
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Torque High temperature superconductors Magnetic fields Superconducting magnets Superconducting coils Magnetic levitation Magnetic flux Solenoids Yttrium barium copper oxide Drag
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Hybrid Levitation While Incorporating YBCO Bulks With DC Coil

Thermally Actuated Magnetization Method in High Temperature Superconductor Bulks

Designing high temperature superconductor magnets

Levitation force of a YBaCuO bulk high temperature superconductor over a NdFeB guideway

Applications Of High Temperature Superconductors In Magnetic Damping And Levitation Devices

Electromagnetic behavior on high-temperature superconducting bulk YBCO exposed to time-varying magnetic field

Characteristics of an electromagnetic levitation system using a bulk superconductor

Design and Experiment of a New Maglev Design Using Zero-Field-Cooled YBCO Superconductors

Magnetic Force Field Enhancement by Field Cooling of HTS Bulk Cylinder

Drag torque on slowly rotating high temperature superconductor in non-axisymmetric magnetic field

Similar Documents

Hybrid Levitation While Incorporating YBCO Bulks With DC Coil

Thermally Actuated Magnetization Method in High Temperature Superconductor Bulks

Designing high temperature superconductor magnets

Levitation force of a YBaCuO bulk high temperature superconductor over a NdFeB guideway

Applications Of High Temperature Superconductors In Magnetic Damping And Levitation Devices

Electromagnetic behavior on high-temperature superconducting bulk YBCO exposed to time-varying magnetic field

Characteristics of an electromagnetic levitation system using a bulk superconductor

Design and Experiment of a New Maglev Design Using Zero-Field-Cooled YBCO Superconductors

Magnetic Force Field Enhancement by Field Cooling of HTS Bulk Cylinder

Drag torque on slowly rotating high temperature superconductor in non-axisymmetric magnetic field