Force measurements for levitated bulk superconductors in electromaglev system

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Tachi, Yasuharu^a | Nishikawa, Tsuyoshi^a | Sawa, Koichiro^{a; *} | Murakami, Masato^b | Iwasa, Yukikazu^c

Affiliations: [a] Department of System Design Engineering, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Japan | [b] ISTEC, Superconductivity Research Laboratory, 1-16-25, Shibaura, Minato-ku, Tokyo, Japan | [c] Francis Bitter Magnet Laboratory,Massachusetts Institute of Technology, Cambridge, MA, USA

Correspondence: [*] Corresponding author: Fax: +81 45 566 1720; E-mail: sawa@sd.keio.ac.jp

Abstract: We have directly measured the levitation force of levitated bulk superconductors in an electromaglev system. The levitation force had a hysteresis loop during increasing and decreasing field processes. Such a hysteretic behavior can be explained in terms of hysteretic penetration of external field to the superconductor. Based on such magnetization, we performed numerical simulations of the levitation forces, which were in fairly good agreement with experimental data.

DOI: 10.3233/JAE-2002-393

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 14, no. 1-4, pp. 107-113, 2002