| 摘要 |
A coil array includes a first bar (701, 801) comprising a first gap (820) and a first winding (703, 821) around the first bar, a second bar (711, 803) comprising a second gap and a second winding (713) around the second bar, a lid element (720) connected to an end of each of the first and second bars, and a floor element (730) connected to another end of each of the first and second bars, the first bar, the second bar, the lid element, and the floor element being formed of a ferromagnetic material, and the first gap and the second gap being formed of air or a material having a magnetic permeability lower than the magnetic permeability of the ferromagnetic material. |
