Another aspect of {TAIL ~ the present disclosure} is directed to a method for operating {HEAD ~ an optical encoder} 
Another aspect of { TAIL ~ the present disclosure } is directed to a method for operating { HEAD ~ an optical encoder }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD