A magnetic field position and orientation measurement system contains, confines and re-directs the magnetic field from one or more transmitters such that the fields are attenuated in areas outside of the operating volume in areas where metallic objects are commonly found. A thin barrier made of a highly...http://www.google.es/patents/US6246231?utm_source=gb-gplus-sharePatente US6246231 - Magnetic field permeable barrier for magnetic position measurement system
Magnetic field permeable barrier for magnetic position measurement system