Invention Grant
- Patent Title: Oxygen analyzer with pressure compensation
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Application No.: US17482973Application Date: 2021-09-23
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Publication No.: US11892370B2Publication Date: 2024-02-06
- Inventor: Pavel Shuk , Dirk W. Bauschke , David Loberg
- Applicant: Rosemount Inc.
- Applicant Address: US MN Shakopee
- Assignee: Rosemount Inc.
- Current Assignee: Rosemount Inc.
- Current Assignee Address: US MN Shakopee
- Agency: Kelly, Holt & Christenson, P.L.L.C.
- Agent Christopher R. Christenson
- Main IPC: G01M15/10
- IPC: G01M15/10 ; G01N33/00 ; G01N27/409

Abstract:
A process oxygen analyzer includes a process probe extendible into a flow of process combustion exhaust, the process probe having an oxygen sensor measurement cell. Measurement circuitry is 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 is operably coupled to the measurement circuitry and is 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 method of providing a process oxygen concentration using a process oxygen analyzer coupled to an industrial combustion process is also disclosed.
Public/Granted literature
- US20230086725A1 OXYGEN ANALYZER WITH PRESSURE COMPENSATION Public/Granted day:2023-03-23
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