More specifically, the present invention drives a wide range electrochemical polarographic oxygen sensor under a drive voltage designed to maintain the sensor in {HEAD ~ the current limiting range} of {TAIL ~ operation} 
of
More specifically , the present invention drives a wide range electrochemical polarographic oxygen sensor under a drive voltage designed to maintain the sensor in { HEAD ~ the current limiting range } of { TAIL ~ operation }
OTH OTH OTH OTH 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 HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL