| 发明名称 |
System and apparatus for balancing radial forces in a gradient coil |
| 摘要 |
A gradient coil apparatus for a magnetic resonance imaging (MRI) system includes an inner gradient coil assembly and an outer gradient coil assembly disposed around the inner gradient coil assembly. The outer gradient coil assembly has an outer surface, a first end and a second end. The gradient coil apparatus also includes a force balancing apparatus disposed around the outer surface of the outer gradient coil assembly. In one embodiment, the force balancing apparatus includes an active force balancing coil disposed around the outer surface of the outer gradient coil assembly. In another embodiment, the force balancing apparatus includes a first passive conducting strip disposed around the first end of the outer gradient coil assembly and a second passive conducting strip disposed around the second end of the outer gradient coil assembly. |
| 申请公布号 |
US8766635(B2) |
申请公布日期 |
2014.07.01 |
| 申请号 |
US201113183647 |
申请日期 |
2011.07.15 |
| 申请人 |
General Electric Company |
发明人 |
Kidane Tesfaye K.;Havens Timothy J.;Jiang Longzhi |
| 分类号 |
G01V3/00;G01R33/385 |
主分类号 |
G01V3/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A gradient coil apparatus for a magnetic resonance imaging (MRI) system, the gradient coil apparatus comprising:
an inner gradient coil assembly; an outer gradient coil assembly disposed around the inner gradient coil assembly and having an outer surface, wherein the outer gradient coil assembly further comprises a first end and a second end; and a first active force balancing coil disposed around a circumference of the first end of the outer surface of the outer gradient coil assembly and a second active force balancing coil disposed around a circumference of the second end of the outer surface of the outer gradient coil assembly, wherein the first and second active force balancing layers do not overlap. |
| 地址 |
Schenectady NY US |
