发明名称 |
ELECTROMAGNET WITH LAMINATED FERROMAGNETIC CORE AND SUPERCONDUCTING FILM FOR. SUPPRESSING EDDY MAGNETIC FIELD |
摘要 |
<p>An electromagnet comprises: a ferromagnetic core (50, 72); electrically conductive windings (34, 76) disposed around the ferromagnetic core such that current flowing in the windings magnetizes the ferromagnetic core; and a superconducting film (60, 80, 82) arranged to support eddy current cancelling supercurrent that suppresses eddy current formation in the ferromagnetic core when the windings magnetize the ferromagnetic core. A magnetic resonance scanner embodiment includes a main magnet (20) generating a static magnetic field and a magnetic field gradient system (30) with a plurality of said electromagnets (34, 50, 60) configured to superimpose selected magnetic field gradients on the static magnetic field.</p> |
申请公布号 |
WO2009081361(A1) |
申请公布日期 |
2009.07.02 |
申请号 |
WO2008IB55445 |
申请日期 |
2008.12.19 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH;OVERWEG, JOHANNES ADRIANUS;TIMINGER, HOLGER;DAVID, BERND |
发明人 |
OVERWEG, JOHANNES ADRIANUS;TIMINGER, HOLGER;DAVID, BERND |
分类号 |
G01R33/381;G01R33/385;H01B12/06;H01B12/16;H01F7/11 |
主分类号 |
G01R33/381 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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