TY - JOUR
T1 - Noncontact characterization of In-plane distribution of critical current desity in multifilamentary coated conductor
AU - Higashikawa, Kohei
AU - Shiohara, Kei
AU - Inoue, Masayoshi
AU - Kiss, Takanobu
AU - MacHi, Takato
AU - Chikumoto, Noriko
AU - Lee, Sergey
AU - Tanabe, Keiichi
AU - Izumi, Teruo
AU - Okamoto, Hiroshi
N1 - Funding Information:
Manuscript received September 13, 2011; accepted November 08, 2011. Date of publication November 18, 2011; date of current version May 24, 2012. This work was supported by the “New Energy and Industrial Technology Development Organization (NEDO) as the Project for Development of Materials & Power Application of Coated Conductors, M-PACC,” “JSPS: KAKENHI (23760263),” and “The Nakajima Foundation.” K. Higashikawa, K. Shiohara, M. Inoue, and T. Kiss are with the Department of Electrical Engineering, Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan (e-mail: kohei@super.ees.kyushu-u.ac.jp).
PY - 2012
Y1 - 2012
N2 - Using a scanning Hall-probe microscopy, we have developed a noncontact characterization method for multifilamentary coated conductors. In-plane distributions of sheet current density in a multifilamentary coated conductor were visualized at different conditions of external magnetic field. From these results, we could extract local critical current and equivalent width of each filament as a function of longitudinal position. These items will be indispensable for quality control of multifilamentary coated conductors and for the precise estimation of their AC losses. This means that this characterization method will be a key technology for the establishment of multifilamentary coated conductors which promise electric power applications with low AC losses.
AB - Using a scanning Hall-probe microscopy, we have developed a noncontact characterization method for multifilamentary coated conductors. In-plane distributions of sheet current density in a multifilamentary coated conductor were visualized at different conditions of external magnetic field. From these results, we could extract local critical current and equivalent width of each filament as a function of longitudinal position. These items will be indispensable for quality control of multifilamentary coated conductors and for the precise estimation of their AC losses. This means that this characterization method will be a key technology for the establishment of multifilamentary coated conductors which promise electric power applications with low AC losses.
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U2 - 10.1109/TASC.2011.2176711
DO - 10.1109/TASC.2011.2176711
M3 - Article
AN - SCOPUS:84862570196
SN - 1051-8223
VL - 22
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 3
M1 - 6084719
ER -