{TAIL ~ A device} to detect the location of {HEAD ~ a plurality} of magnets uses a plurality of magnetic sensors, having sensor elements arranged in a known fashion 
{ TAIL ~ A device } to detect the location of { HEAD ~ a plurality } of magnets uses a plurality of magnetic sensors , having sensor elements arranged in a known fashion
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH