| 发明名称 | Magnet assembly | ||
| 摘要 | An electromagnet comprising a ferromagnetic yoke which comprises a yoke. Mutually opposing first and second pole pieces are provided. The first pole piece is provided with a planar coil having a first side facing the yoke and a second side facing the yoke. A balancing member is arranged on the second side of the planar coil to counterbalance the attractive force between the planar coil and the yoke. The other pole piece may also be provided with a corresponding balancing member. | ||
| 申请公布号 | US9269484(B2) | 申请公布日期 | 2016.02.23 |
| 申请号 | US201414250078 | 申请日期 | 2014.04.10 |
| 申请人 | Emscan Limited | 发明人 | McGinley John Vincent Mario;Ristic Mihailo;Besant Colin Bowden;Young Ian Robert |
| 分类号 | H01F7/06;G01R33/383;H01F3/10;H01F6/04 | 主分类号 | H01F7/06 |
| 代理机构 | Kaplan Breyer Schwarz & Ottesen, LLP | 代理人 | Kaplan Breyer Schwarz & Ottesen, LLP |
| 主权项 | 1. An apparatus comprising an electromagnet, the electromagnet comprising: a yoke; a pair of mutually facing first and second pole pieces, wherein the yoke is not ferromagnetically separated from the first pole piece, the yoke is not ferromagnetically separated from the second pole piece; a first balancing member, at least a portion of which first balancing member is disposed radially outward of at least a portion of the first pole piece; and a first coil disposed radially outward of at least a portion of the first pole piece and in coaxial relation therewith, and wherein the first balancing member comprises at least one physical adaptation for at least partially counterbalancing an attractive force between the first coil and the yoke. | ||
| 地址 | GB | ||