Corresponding FIG 5B illustrates the height of {TAIL ~ the fiber optic pair} from {HEAD ~ the surface} of the object being measured 
Corresponding FIG 5B illustrates the height of { TAIL ~ the fiber optic pair } from { HEAD ~ the surface } of the object being measured
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH