Coil arrangement for electromagnetic tracker method and system
AssigneeGeneral Electric Company
InventorPeter Traneus Anderson
Life of this patent
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Abstract
An electromagnetic coil arrangement comprising a plurality of electromagnetic sensors located about the periphery of a region and at least one center electromagnetic sensor located at or near the center of the region, wherein the plurality of electromagnetic sensors and the at least one center electromagnetic sensor are located in a single plane. An electromagnetic tracking system and method of use, the electromagnetic tracking system comprising the electromagnetic coil arrangement, at least one complementary electromagnetic sensor, and a processor configured to process a signal comprising data indicative of a mutual inductance between the at least one complementary electromagnetic sensor and each of the electromagnetic sensors of the electromagnetic coil arrangement.
Claims26
An electromagnetic coil arrangement, comprising:
- a plurality of electromagnetic sensors located about the periphery of a region;
- and
- at least one center electromagnetic sensor located at or near the center of the region;
- wherein the plurality of electromagnetic sensors and the at least one center electromagnetic sensor are located in a single plane.
An electromagnetic coil arrangement, comprising:
- a plurality of electromagnetic sensors located about the periphery of faces enclosing a volume;
- and
- at least one center electromagnetic sensor located at or near the center of at least one of the faces.
An electromagnetic tracking system, comprising:
- an electromagnetic coil arrangement comprising a plurality of electromagnetic sensors located about the periphery of a region;
- and at least one center electromagnetic sensor located at or near the center of the region, wherein the plurality of electromagnetic sensors and the at least one center electromagnetic sensor are located in a single plane;
- at least one complementary electromagnetic sensor;
- and
- a processor configured to process a signal comprising data indicative of a mutual inductance between the at least one complementary electromagnetic sensor and each of the electromagnetic sensors of the electromagnetic coil arrangement.
A method of electromagnetic tracking, comprising:
- positioning at least one complementary electromagnetic sensor in a volume of interest with respect to an electromagnetic coil arrangement adjacent to the volume of interest, the coil arrangement comprising a plurality of electromagnetic sensors located about the periphery of a region;
- and at least one center electromagnetic sensor located at or near the center of the region, wherein the plurality of electromagnetic sensors and the at least one center electromagnetic sensor are located in a single plane;
- sensing a mutual inductance between at least one of the electromagnetic sensors of the electromagnetic coil arrangement and the at least one complementary electromagnetic sensor;
- and
- processing a signal indicative of the mutual inductance.
Dependencies are inferred from the claim text.