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