摘要 |
The directed field array comprises a cylindrical solenoid 10 and a base 20 located transverse the solenoid axis 11. An array of mutually spaced apart posts 24 extends from the base 20 such that the magnetic field 22 passes through the base 20 and into the array of posts 24, dividing and focusing the magnetic field into discretized magnetic field divisions 22' through the several posts. In a first configuration, the base 20 is disposed transverse the end of the coil center or core 12 with the array of posts 24 extending from the base 20 away from the solenoid 10 longitudinally with the solenoid axis 11. In an alternative configuration, at least one base 20'' locates at a solenoid end 30 transverse the solenoid axis 11 with an array of posts 24'' extending radially from the base 20, equally spaced apart circumferentially about the base. Multiple bases are typically aligned with their posts staggered. In a further enhancement of this embodiment, two solenoids 10'' are aligned end to end with the one or more bases 20'' between them. The cylindrical solenoids 10'' are electrically driven to generate opposing magnetic fields both directed into the base and radially out the posts for a combined magnetic field greater than the magnetic field from either solenoid alone.
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