公开(公告)号：US20230314239A1

公开(公告)日：2023-10-05

申请号：US17710031

申请日：2022-03-31

Applicant: Rosemount Inc.

Inventor： Jason H. Rud

IPC: G01K7/16 ,  G01K7/02 ,  G01K7/04

CPC classification number: G01K7/16 ,  G01K7/021 ,  G01K7/04

Abstract: A process 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 hot end thermocouple is thermally coupled to the external surface of the process fluid conduit. A resistance temperature device (RTD) is spaced from the hot end thermocouple. Measurement circuitry is coupled to the hot end thermocouple and is configured to detect an emf of the hot end thermocouple and a resistance of the RTD that varies with temperature and provide sensor temperature information. A controller is coupled to the measurement circuitry and is configured to measure a reference temperature based on the resistance of the RTD and employ a heat transfer calculation with the reference temperature, the emf of the hot end thermocouple, and known thermal conductivity of the process fluid conduit to generate an estimated process temperature output.

公开(公告)号：US11667880B2

公开(公告)日：2023-06-06

申请号：US17194686

申请日：2021-03-08

Applicant: Rosemount Inc.

Inventor： Jinbo Hu ,  Andrew S. Dierker ,  Rick J. Sumrall ,  Tyrel L. Ruch ,  John W. Simon ,  Ryan L. Bowlds

IPC: G01N27/403 ,  C12M1/34 ,  C12M1/00 ,  G01N27/30 ,  G01N27/333

CPC classification number: C12M41/26 ,  C12M23/28 ,  G01N27/302 ,  G01N27/333

Abstract: A pH sensor for a single-use container includes a plunger sleeve configured to couple to a flange of the single-use container. A plunger is axially movable within the plunger sleeve between a storage position and an operating position. A pH sensing element coupled to the plunger wherein the pH element is disposed within a storage chamber in the storage position and is configured to be exposed to an interior of the single-use container in the operating position. In one example, a temperature sensitive element is disposed within the pH sensor and configured to sense temperature proximate the pH sensing element. In another example, a lock member is coupled to the plunger, where the lock member has a locked position and an unlocked position, the lock member being configured to inhibit movement of the plunger when in the locked position. In yet another example, the plunger includes at least one filling channel that allows access to a reference fill chamber when the plunger is in a filling position.

公开(公告)号：US20230100648A1

公开(公告)日：2023-03-30

申请号：US17488515

申请日：2021-09-29

Applicant: Rosemount Inc.

Inventor： Justin Zingsheim ,  Rob LaRoche ,  Kurt Diede

IPC: G01R31/327 ,  H03F3/45 ,  H03K3/037

Abstract: An industrial process field device includes an active component, a switch, a switch monitor, and a controller. The active component may be a sensor configured to sense a process parameter, or a control device configured to control a process of the industrial process. The switch is electrically coupled to first and second terminals. The switch monitor is configured to detect an open or closed state of the switch, and generate a first state output, a second state output, or a chattering state output. An anti-chatter circuit outputs a chatter stabilized state output based on the chattering state output. The controller is configured to set the switch in the open or closed state, and generate a notification based on any one of the first and second state outputs and the chatter stabilized state output that indicates at least one of the current state and a condition of the switch.

公开(公告)号：US20230086725A1

公开(公告)日：2023-03-23

申请号：US17482973

申请日：2021-09-23

Applicant: Rosemount Inc.

Inventor： Pavel SHUK ,  Dirk W. BAUSCHKE ,  David LOBERG

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.

公开(公告)号：US20230053446A1

公开(公告)日：2023-02-23

申请号：US17708743

申请日：2022-03-30

Applicant: Rosemount Inc.

Inventor： Tsviel BOUHBUT ,  Yossi Ben-Aderet ,  Dimitriy Grigorovitch ,  Uzziel Sheintop

IPC: G01N21/3504 ,  G01N33/00 ,  H04B1/3827 ,  H04B1/40

Abstract: 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.

公开(公告)号：US20220412815A1

公开(公告)日：2022-12-29

申请号：US17848625

申请日：2022-06-24

Applicant: Rosemount Inc.

Inventor： Charles R. WILLCOX

IPC: G01K13/02 ,  G01K1/143 ,  G01K7/42

Abstract: 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.

公开(公告)号：US11513018B2

公开(公告)日：2022-11-29

申请号：US17039222

申请日：2020-09-30

Applicant: Rosemount Inc.

Inventor： Jacob Daniel Holm ,  Benjamin Hammerlind Jaffray ,  Glen Rodney Edwards ,  Ryan Thomas Lindsey ,  Paul Curtis Sundet ,  Timothy R Meschke ,  George Charles Hausler ,  Christopher Lee Eriksen

IPC: H05K5/00 ,  G01L19/14

Abstract: 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.

公开(公告)号：US11378480B2

公开(公告)日：2022-07-05

申请号：US17026831

申请日：2020-09-21

Applicant: Rosemount Inc.

Inventor： David Andrew Broden ,  Charles Ray Willcox

IPC: G01L19/00 ,  G01L19/14

Abstract: 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.

公开(公告)号：US11346554B2

公开(公告)日：2022-05-31

申请号：US16587722

申请日：2019-09-30

Applicant: Rosemount Inc.

Inventor： Pavel Shuk ,  Chad M. McGuire ,  Philip Ostby

IPC: F23N5/00 ,  G01N33/00 ,  F23N5/24 ,  G01N25/28

Abstract: 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.

公开(公告)号：US20220146453A1

公开(公告)日：2022-05-12

申请号：US17095418

申请日：2020-11-11

Applicant: Rosemount Inc.

Inventor： Jinbo Hu

IPC: G01N27/416 ,  G01N27/30

Abstract: 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.