{TAIL ~ An arrangement} for the remote actuation of a controlled device, e.g. a hydraulic valve, in {HEAD ~ situations} with stringent safety requirements, uses optical power 
{ TAIL ~ An arrangement } for the remote actuation of a controlled device , e.g. a hydraulic valve , in { HEAD ~ situations } with stringent safety requirements , uses optical power
TAIL TAIL TAIL TAIL TAIL TAIL OTH 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