Continuous oxygen content monitor

Details Continuous oxygen content monitor Continuous oxygen content monitor

1995-04-10

1997-01-21

Williams, Hezron E.

Measuring and testing

Gas content of a liquid or a solid

Of metal

73 1901, 2057835, 205785, 204421, G01N 2746, G01N 2726

Patent

active

055961347

ABSTRACT:
A continuous oxygen content monitor has a reference electrode embedded in a powdered chrome-chrome-oxide mixture and a counter electrode embedded in an elongate alumina-graphite sleeve which acts as the probe support body. Two hallow and spacer ablative steel domes encase the reference electrode and an intermediate air gap spacing and provide insulation to prevent thermal shock from damaging the monitor during insertion into the metal melt. A circuit provides counter emf across the sensing electrodes to prevent ion depletion of the reference material.

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DRT Technical Report TR-93-1, "Development of an Oxygen Sensor for Continuous Measurement in Molten Steel" by R. Michael Phillippi and Tadeusz M. Drzewiecki 43 pgs.
American Scientist, vol. 80 "Modern Steelmaking" by Nobuo Ohashi pp. 540-555.

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