A tensiometer engages {HEAD ~ an elongated test member} at {TAIL ~ three spacially displaced points}, the intermediate point being defined by a fulcrum about which the member is bent by application of a known spring force to the member at one of the other points 
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A tensiometer engages { HEAD ~ an elongated test member } at { TAIL ~ three spacially displaced points } , the intermediate point being defined by a fulcrum about which the member is bent by application of a known spring force to the member at one of the other points
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH