US 9,810,755 B2
System and method for energizing a superconducting magnet
Weijun Shen, Florence, SC (US); Timothy John Havens, Florence, SC (US); Longzhi Jiang, Florence, SC (US); Zhenyu Zhang, Florence, SC (US); and Venkata Kishore Mogatadakala, Lexington, SC (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Dec. 16, 2013, as Appl. No. 14/107,216.
Prior Publication US 2015/0168517 A1, Jun. 18, 2015
Int. Cl. G01R 33/3815 (2006.01); H01F 6/00 (2006.01); G01R 33/54 (2006.01); G01R 33/30 (2006.01); G01R 33/385 (2006.01)
CPC G01R 33/3815 (2013.01) [G01R 33/307 (2013.01); G01R 33/385 (2013.01); G01R 33/546 (2013.01); H01F 6/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for energizing a main coil of a superconducting magnet in a magnetic resonance imaging (MRI) system, the system comprising:
a cryostat comprising a housing surrounding the main coil of the superconducting magnet;
a first coil positioned within the housing of the cryostat;
a second coil coupled to the first coil through a first switch and positioned external to the housing of the cryostat, the second coil configured to inductively couple to the main coil;
a power supply positioned external to the housing of the cryostat and coupled to the second coil and the first coil through a second switch; and
a controller coupled to the power supply, the second coil and the first coil, and configured to control the second coil and the first coil to induce current in the main coil.