The device uses fundamental equations for electricity and magnetism that relate the measured magnetic field strength to the location and strength of {HEAD ~ the magnetic dipole} for {TAIL ~ each} of the plurality of magnets 
for
The device uses fundamental equations for electricity and magnetism that relate the measured magnetic field strength to the location and strength of { HEAD ~ the magnetic dipole } for { TAIL ~ each } of the plurality of magnets
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH