NDLI: Self-field ac loss of Bi-2223 superconducting tapes

Content Provider	IEEE Xplore Digital Library
Author	Muller, K.-H. Leslie, K.E.
Copyright Year	2002
Abstract	The self-field ac loss of a monofilamentary Bi-2223/Ag tape has been measured using an improved lock-in amplifier technique. To investigate the dependence of the ac power loss on the phase-angle error of the lock-in amplifier, theoretical calculations of the ac power loss of a flat superconducting strip in a perpendicular ac magnetic field were performed. The expressions derived also predict the dependence of the apparent loss on the size of the lead extension of the voltage contacts. For zero phase-angle error and an infinite lead extension the Norris formula is obtained. The voltage wave-form for ac current amplitudes greater than the tape's critical current has been measured and calculated. Theoretical predictions agree well with the experimental data.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	306
Ending Page	309
Page Count	4
File Size	378280
File Format	PDF
ISSN	10518223
Volume Number	7
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting films Superconducting magnets Loss measurement Magnetic field measurement Voltage Multifilamentary superconductors Superconducting filaments and wires Current measurement Power measurement Superconducting cables
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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