More preferably, a differential bridge network is used to obtain {HEAD ~ a measurable signal} from {TAIL ~ the plurality} of sensors 
from
More preferably , a differential bridge network is used to obtain { HEAD ~ a measurable signal } from { TAIL ~ the plurality } of sensors
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH