A system for detecting movement of a forcer of a motor directed for effecting {HEAD ~ movement} of a forcer in a first direction in {TAIL ~ response} to command pulses 
A system for detecting movement of a forcer of a motor directed for effecting { HEAD ~ movement } of a forcer in a first direction in { TAIL ~ response } to command pulses
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH