The contact sensors of the invention include {HEAD ~ a conductive composite material} formed of {TAIL ~ a polymer} and a conductive filler 
The contact sensors of the invention include { HEAD ~ a conductive composite material } formed of { TAIL ~ a polymer } and a conductive filler
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH