{HEAD ~ The system} utilizes {TAIL ~ the perimeter receiver fiber optics} to determine information regarding the height and angle of the probe with respect to the object being measured 
{ HEAD ~ The system } utilizes { TAIL ~ the perimeter receiver fiber optics } to determine information regarding the height and angle of the probe with respect to the object being measured
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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