Comparison of the Characteristics of φ140 mm Superconducting Magnetic Bearings with Ring-shaped Permanent Magnets and Laminated Superconductors with Different Magnetization Directions for Application in Submersible Pumps

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  • サブマージドポンプへの適用を目指した着磁方向の異なるリング状永久磁石及び積層超電導体を用いたφ140 mmの超電導磁気軸受の特性比較
  • サブマージドポンプ エ ノ テキヨウ オ メザシタ チャクジホウコウ ノ コトナル リングジョウ エイキュウ ジシャク オヨビ セキソウ チョウデンドウタイ オ モチイタ ph140mm ノ チョウデンドウジキ ジクウケ ノ トクセイ ヒカク

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<p>This study discusses the electromagnetic characteristics of superconducting magnetic bearings (SMBs) using ring-shaped permanent magnets (PMs) and laminated high-temperature superconducting tapes. The two ring-shaped PMs of different magnetization structures are applied for SMBs to compare thrust electromagnetic force and rotation loss. The measurement results of maximum thrust magnetic force using axial magnetization ring-shaped PM reached almost 60 N. Furthermore, the rotation loss characteristics indicated that the rotation loss with the SMB was less than 1.5 W in the range of 1,000–1,600 rpm.</p>

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