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