Patent ID: 8674799
Filing Date: 2014-03-18
Classification: G01R,H01F,Y10T

Abstract:
1. A transformer assembly for a magnetic resonance imaging (MRI) system, said transformer assembly comprising: a substrate having a first surface and an opposing second surface; a first and a second spiral wound inductive coils formed on the first surface and forming a first double spiral arrangement such that the first coil is inductively coupled to the second coil; a third and a fourth-spiral wound inductive coils formed on the second surface and forming a second double spiral arrangement such that the third coil is inductively coupled to the fourth coil; a plurality of openings extending through the first, the second, the third, and the fourth coils; and a pair of pins being inserted into select ones of the plurality of openings through the first, the second, the third, and the fourth coils to adjust a mutual inductance of the transformer assembly in the MRI system.