Producing Magnetic Anisotropy (Easy Access) in Circumferential or Helical Direction Along a Wire
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20
Circumferential anisotropy for use with magnetostrictive effects has been produced by electroplating a wire while current is being passed through it. Presumably, this produces a direction of easy alignment circumferential to the wire, that is, along the self-magnetic field. A technique is disclosed for plating a wire while applying a tangential field, in a manner which produces a strong circumferential anisotropy without using a current through the wire. This enables larger magnetic fields to be readily produced without problems with electrolysis, nonuniformity, and the like.