US 11,892,370 B2
Oxygen analyzer with pressure compensation
Pavel Shuk, Copley, OH (US); Dirk W. Bauschke, Shakopee, MN (US); and David Loberg, Prior Lake, MN (US)
Assigned to Rosemount Inc., Shakopee, MN (US)
Filed by Rosemount Inc., Shakopee, MN (US)
Filed on Sep. 23, 2021, as Appl. No. 17/482,973.
Prior Publication US 2023/0086725 A1, Mar. 23, 2023
Int. Cl. G01M 15/10 (2006.01); G01N 33/00 (2006.01); G01N 27/409 (2006.01)
CPC G01M 15/106 (2013.01) [G01N 27/409 (2013.01); G01N 33/0062 (2013.01); G01N 33/0073 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process oxygen analyzer comprising:
a process probe extendible into a flow of process combustion exhaust, the process probe having an oxygen sensor measurement cell;
measurement circuitry coupled to the oxygen sensor measurement cell and configured to obtain a non-corrected indication of oxygen concentration relative to a combustion process based on an electrical characteristic of the oxygen sensor measurement cell;
a controller operably coupled to the measurement circuitry, the controller being configured to obtain an indication of process pressure and selectively provide a corrected oxygen concentration output based on non-corrected indication of oxygen concentration and the indication of process pressure
a user interface (UI)/display module operably coupled to the controller; and
wherein the controller is configured to obtain the indication of process pressure via the UI/display module.