Anti-distortion electromagnetic sensor method and system
AssigneeGeneral Electric Company
InventorPeter Traneus Anderson
Life of this patent
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Abstract
A source for inducing an electromagnetic magnetic field, comprising: a substrate, a conductive layer coupled to the substrate, and a planar coil coupled to the substrate, wherein the planar coil comprises non-concentric rings, and wherein the non-concentric rings are configured such that a drive current applied across the non-concentric rings provides a magnetic field, and wherein the magnetic field comprises a moment vector that is tilted at an angle from the normal to a plane of the planar coil. Also provided are a method of electromagnetic tracking, a method of manufacture of a planar coil, and an electromagnetic sensor.
Claims28
A source for inducing an electromagnetic magnetic field, comprising:
- a substrate;
- a conductive layer coupled to the substrate;
- and
- a planar coil coupled to the substrate, wherein the planar coil comprises non-concentric rings, wherein the non-concentric rings are configured such that a drive current applied across the non-concentric rings provides a magnetic field, and wherein the magnetic field comprises a moment vector that is tilted at an angle from the normal to a plane of the planar coil.
A method of electromagnetic tracking, comprising:
- inducing a drive current into a planar coil located on one side of an electrically conductive layer, wherin the planar coil comprises non-concentric rings, and wherein the non-concentric rings are configured such that inducing the drive current across the planar coil provides a magnetic field, wherein the magnetic field comprises a moment vector that is tilted at an angle from the normal to a plane of the planar coil.
A method of manufacture of a planar coil, comprising:
- coupling a planar coil to an electrically conductive layer, wherein the planar coil comprises non-concentric rings, and wherein the non-concentric rings are configured such that a inducing drive current across the planar coil provides a magnetic field, wherein the magnetic field comprises a moment vector that is tilted at an angle from the normal of a plane of the planar coil.
An electromagnetic sensor, comprising:
- an insulating layer having a first surface and a second surface, the second surface being opposite the first surface;
- a conductive layer coupled to the second surface of the insulating layer;
- and
- a planar coil coupled to the first surface of the insulating layer, wherein the planar coil comprises non-concentric rings, wherein the non-concentric rings are configured such that a drive current applied across the non-concentric rings provides a magnetic field, and wherein the magnetic field comprises a moment vector that is tilted at an angle from the normal to a plane of the planar coil.
Dependencies are inferred from the claim text.