Multi-field magnetic tracking

摘要

A magnetic tracking system includes a first set of magnetic field generators configured to produce a first magnetic field having a first shape within a three dimensional region and at least a second set of magnetic field generators configured to produce a second magnetic field having a second shape within the three dimensional region. The system also includes a computing device configured to compute a position of a sensor within the three dimensional region based on the first and second magnetic fields being detected by the sensor.

主权项

1. A magnetic tracking system comprising:
a field generator assembly generating a plurality of magnetic fields wherein each field is generated by a first set of at least two simultaneously activated magnetic field generators, wherein a magnetic field generated by a first magnetic field generator included in the first set is substantially parallel or substantially anti-parallel to another magnetic field generated by at least a second magnetic field generator included in the first set; a magnetic sensor to measure the plurality of magnetic fields; and a computing device configured to compute a position and orientation of the magnetic sensor within the magnetic fields being measured by the sensor.