| 摘要 |
PURPOSE:To generate a highly uniform magnetic field, by installing a pair of auxiliary coils, which sandwich a magnetic field generating coil in between, in part of a group of coils capable of generating the uniform magnetic field, and adjusting the direction and size of its electric current whereby correcting the electrical center position. CONSTITUTION:A pair of auxiliary coils 3 and 4 are added to a uniform magnetic generator, which coaxially sets up a pair of round coils 1 and 2 centering on a Z-axis in a rectangular coordinate system, in a way of approaching the coil 1 and sandwiching it in between. And the direction of an electrical current flowing in these auxiliary coils 3 and 4 is set to the reverse each other, while the current value is made to be adjustable. Accordingly, when an interval between these coils 1 and 2 is dislocated apart from a specified distance, the electrical center position of a coil section inclusive of the coil 1 and these auxiliary coils 3 and 4 can be moved toward the Z-axis by adjustment of the current so that a highly uniform magnetic field can be secured in an easy manner without any adjustment for the mechanical position. |
