Flux sensors generate signal variations corresponding to flux variations as {TAIL ~ the forcer} moves relative to {HEAD ~ the teeth} of the platen 
Flux sensors generate signal variations corresponding to flux variations as { TAIL ~ the forcer } moves relative to { HEAD ~ the teeth } of the platen
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH