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公开(公告)号：US20230086725A1
公开(公告)日：2023-03-23
申请号：US17482973
申请日：2021-09-23
申请人： Rosemount Inc.
发明人： Pavel SHUK , Dirk W. BAUSCHKE , David LOBERG
IPC分类号： G01M15/10 , G01N33/00 , G01N27/409
摘要： 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.
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公开(公告)号：US20230053446A1
公开(公告)日：2023-02-23
申请号：US17708743
申请日：2022-03-30
申请人： Rosemount Inc.
IPC分类号： G01N21/3504 , G01N33/00 , H04B1/3827 , H04B1/40
摘要： An open path gas detection system includes a transmitter and a receiver. The transmitter is configured to generate illumination across an open path. The receiver is positioned to detect the illumination from the transmitter after the illumination has passed through the open path and detect a gas of interest based on the illumination. However, the laser can also be used for gas detection systems in other circumstances. The transmitter and receiver are configured to communicate wirelessly. A method of operating an open path gas detection system is also provided.
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13.发明申请公开(公告)号：US20220412815A1
公开(公告)日：2022-12-29
申请号：US17848625
申请日：2022-06-24
申请人： Rosemount Inc.
发明人： Charles R. WILLCOX
摘要： A process fluid temperature estimation system includes a mounting assembly configured to mount the process fluid temperature estimation system to an external surface of a process fluid conduit. A sensor capsule has at least one temperature sensitive element disposed therein and is configured to sense at least a temperature of the external surface of the process fluid conduit. Measurement circuitry is coupled to the sensor capsule and is configured to detect a characteristic of the at least one temperature sensitive element that varies with temperature and provide sensor capsule temperature information. A controller is coupled to the measurement circuitry and is configured to obtain a temperature measurement of the external surface of the process fluid conduit and to obtain a reference temperature and employ a heat transfer calculation with the reference temperature, the external surface temperature measurement and a known thermal relationship between the external surface temperature sensor in the sensor capsule and the reference temperature to generate an estimated process fluid temperature output. The controller is also configured to improve response time of the process fluid estimation system mathematically. In some examples, the controller is configured to extract the system tau value from the measured data.
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公开(公告)号：US11513018B2
公开(公告)日：2022-11-29
申请号：US17039222
申请日：2020-09-30
申请人： Rosemount Inc.
发明人： Jacob Daniel Holm , Benjamin Hammerlind Jaffray , Glen Rodney Edwards , Ryan Thomas Lindsey , Paul Curtis Sundet , Timothy R Meschke , George Charles Hausler , Christopher Lee Eriksen
摘要： Embodiments of the present disclosure are directed to field device housing assemblies and field devices that include the housing assemblies. One embodiment of the field device housing assembly includes a main housing, a cover having a proximal end connected to the main housing, a transparent panel and a retainer ring. An interior wall of the cover includes a threaded section that is concentric to a central axis, and a flange extending radially inward from the interior wall toward the central axis. The transparent panel is received within a socket defined by the interior wall and the flange. The retainer ring is secured to the threaded section of the interior wall. The transparent panel is clamped between the retainer ring and the flange.
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公开(公告)号：US11378480B2
公开(公告)日：2022-07-05
申请号：US17026831
申请日：2020-09-21
申请人： Rosemount Inc.
摘要： A pressure sensor assembly includes a pressure sensor having a support structure and a sapphire isolation member coupled to the support structure and forming a region between a first surface of the sapphire isolation member and the support structure. A second surface of the sapphire isolation member has a sapphire etch surface formed thereon and is positioned to interface with fluid from or coupled to a process. A process seal is positioned against the second surface of the sapphire isolation member to prevent fluid from passing by the pressure sensor assembly. Electrical leads couple to a polysilicon strain gauge pattern positioned in the region on the first surface of the sapphire isolation member, and the polysilicon strain gauge pattern is configured to generate electrical signals indicative of the pressure of the fluid when the sapphire isolation member deflects responsive to the pressure.
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公开(公告)号：US11346554B2
公开(公告)日：2022-05-31
申请号：US16587722
申请日：2019-09-30
申请人： Rosemount Inc.
发明人： Pavel Shuk , Chad M. McGuire , Philip Ostby
摘要： A combustion analyzer configured to simultaneously detect the concentrations of oxygen, carbon monoxide and methane in a combustion process is provided. The combustion analyzer includes an oxygen sensor configured to detect the oxygen in the combustion process and generate a sensor signal indicative of the concentration of oxygen in the combustion process. The combustion analyzer further includes a dual carbon monoxide-methane sensor configured to operate at approximately 400° C. and provide a second sensor signal indicative of methane concentration and at approximately 300° C. to selectively provide a third sensor signal indicative of carbon monoxide concentration. The combustion analyzer finally includes a controller configured to receive the sensor signals, determine the concentration of oxygen, and generate a carbon monoxide concentration output and methane concentration output based on the dual carbon monoxide-methane sensor signals and the concentration of oxygen.
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公开(公告)号：US20220146453A1
公开(公告)日：2022-05-12
申请号：US17095418
申请日：2020-11-11
申请人： Rosemount Inc.
发明人： Jinbo Hu
IPC分类号： G01N27/416 , G01N27/30
摘要： A solid state gel for use in a pH sensor comprises a reaction product of water, a buffer system for adjusting pH of the gel when in a liquid state, polyethylene glycol or its derivatives as a gelling agent and a salt wherein the water, the buffer, the polyethylene glycol and a reference electrolyte salt when mixed while in a liquid state form a mixture that was subjected to Gamma irradiation to form the reaction product.
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公开(公告)号：US20220091085A1
公开(公告)日：2022-03-24
申请号：US17025017
申请日：2020-09-18
申请人： Rosemount Inc.
发明人： Tyrel L. Ruch , John W. Simon
IPC分类号： G01N33/00
摘要： A multi-stage irreversible sensor coupling is provided. A sensor body includes a sensor and has a sensor body wall and at least one sensor body engagement feature. A clip barrel is configured to slidably engage the sensor body and has at least one clip barrel engagement feature. A wedge clip is configured to slidably engage the clip barrel and has at least one wedge clip engagement feature that is configured to urge the at least one sensor body engagement feature into cooperative engagement with the at least one clip barrel engagement feature when the wedge clip, clip barrel, and sensor body are fully engaged together.
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公开(公告)号：US20220090786A1
公开(公告)日：2022-03-24
申请号：US17234107
申请日：2021-04-19
申请人： Rosemount Inc
发明人： Pavel SHUK , Dirk W. BAUSCHKE , David LOBERG , Narendra KULKARNI , Tejas DUBE , Tushar SONAWANE
摘要： An in-situ averaging combustion analyzer includes a housing and a probe coupled to the housing at a proximal end. The probe has a distal end configured to extend into a flue and contains a zirconia-based oxygen sensing cell proximate the distal end. Electronics are disposed in the housing and are coupled to the zirconia-based oxygen sensing cell. The electronics are configured to measure an electrical characteristic of the zirconia-based oxygen sensing cell and calculate an oxygen concentration value. An averaging conduit is disposed about the probe and has a plurality of inlets spaced at different distances from the distal end of the probe. The averaging conduit has at least one outlet positioned between the distal end and the proximal end of the probe. The electronics are configured to provide an average oxygen concentration output based on the calculated oxygen concentration value.
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公开(公告)号：US11226255B2
公开(公告)日：2022-01-18
申请号：US15279609
申请日：2016-09-29
申请人： Rosemount Inc.
摘要： A process transmitter includes an isolation unit, a process sensor, a compensation circuit, and an output circuit. The isolation unit is configured to engage a process and includes a medium. The process sensor is configured to produce a process signal that is a function of a parameter of the process that is communicated through the medium. The compensation circuit is configured to compensate the process signal for a response time of the isolation unit, and output a compensated process signal. The output circuit is configured to produce a transmitter output as a function of the compensated process signal.
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