2010
DOI: 10.1063/1.3473934
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Contactless measurement of critical current of high temperature superconductor tape by magnetic circuit

Abstract: A method based on the principle of the magnetic circuit is proposed and realized for contactless measurement of critical current (I(c)) of high temperature superconductor tapes. This method has two unique features: first, it eliminates noises caused by mechanical fluctuations and thus makes high speed and high stability measurement possible and second, adapts for both Bi(2)Si(2)Ca(2)Cu(3)O(x) (Bi2223) and YBa(2)Cu(3)O(7-x) (YBCO) tape, which even has a magnetic substrate. Theoretical analysis is given and an a… Show more

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Cited by 13 publications
(3 citation statements)
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References 12 publications
(16 reference statements)
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“…The tape is being transferred continuously and reel-to-reel examination is realized. We have demonstrated that a simple relationship exists between B m and localized critical current I 0 of the tape inside SG [11]- [13]. In principle, this suggests MC method is immune of mechanical vibration during tape transmission, so that it can achieve high repeatability even at high speeds.…”
Section: Apparatusmentioning
confidence: 81%
See 1 more Smart Citation
“…The tape is being transferred continuously and reel-to-reel examination is realized. We have demonstrated that a simple relationship exists between B m and localized critical current I 0 of the tape inside SG [11]- [13]. In principle, this suggests MC method is immune of mechanical vibration during tape transmission, so that it can achieve high repeatability even at high speeds.…”
Section: Apparatusmentioning
confidence: 81%
“…The magnetic-circuit (MC) was proposed and realized in 2010 [11]- [13]. It is characterized by insusceptibility of mechanical fluctuation and feasibility for HTS tapes with magnetic substrates, which has been demonstrated both theoretically and experimentally in previous work.…”
Section: Introductionmentioning
confidence: 99%
“…A system that continuously measures I c was recently developed for use with long-length HTS. It is characterized by the use of several kilometers of reel-to-reel CC tape and is much more efficient than other methods such as those using fast feedback control of the transported current and those using contactless methods and the basic functions of magnetic circuits [13,14]. These methods applied in-line during manufacturing have focused on merely measuring the transport properties of long-length CC tapes.…”
Section: Introductionmentioning
confidence: 99%