Flexible lead electromagnetic coil assembly
AssigneeSmiths Industries Aerospace & Defense Systems, Inc.
InventorMark S. Lorris
Life of this patent
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Abstract
A plurality of sensing coils are formed by spiral coil electrical conductor sections deposited on a flexible substrate which is formed into a cylindrical form about a central axis. The conductor sections are spaced apart by a distance equivalent to one-quarter of the circumferencial length of the cylindrical form, to define four separate coils spaced apart by 90 degrees. Coil sections are deposited in the register on opposite sides of the substrate and interconnected through the substrate. The coil pattern may be repeated in adjacent areas of the substrate to form a multi-layered coil when a number of turns of the substrate are wound around the central axis.
Claims9
An electromagnetic coil assembly comprising:
- a longitudinally extending flexible substrate formed into a cylindrical form having a plurality of layers and an exterior circumferential length and a central axis;
- a plurality of spiral coil electrical conductor sections disposed on the substrate and spaced apart by a distance equivalent to one quarter of the exterior circumferential length to form two pairs of opposing coils, each spiral coil conductor section having a plurality of spaced apart turns and a center and a central electrical connection terminal adjacent the center and an exterior terminal end and an exterior electrical connection terminal adjacent the exterior terminal end;
- wherein a first spiral coil electrical conductor section on a one side of a first layer is disposed in register with a second spiral coil electrical conductor section on one side of second layer disposed adjacent the one side of the first layer and wherein spaced apart turns of the second spiral coil electrical conductor section are nested between spaced apart turns of the first spiral coil electrical conductor section.
Dependencies are inferred from the claim text.