The first sensor 18 is referred to as the collocated sensor, since it is installed within the realm or {HEAD ~ region} of {TAIL ~ influence} of the actuator 14 
of
The first sensor 18 is referred to as the collocated sensor , since it is installed within the realm or { HEAD ~ region } of { TAIL ~ influence } of the actuator 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH