A magnetic position and orientation determining system uses magnetic fields, desirably including uniform fields from Helmholtz coils positioned on opposite sides of a sensing volume and gradient fields generated by the same coils. By monitoring field components detected at the probes during application...http://www.google.fr/patents/US5558091?utm_source=gb-gplus-shareBrevet US5558091 - Magnetic determination of position and orientation
Magnetic determination of position and orientation
