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.

公开(公告)号：US20220091085A1

公开(公告)日：2022-03-24

申请号：US17025017

申请日：2020-09-18

Applicant: Rosemount Inc.

Inventor： Tyrel L. Ruch ,  John W. Simon

IPC: G01N33/00

Abstract: 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.

公开(公告)号：US20220090786A1

公开(公告)日：2022-03-24

申请号：US17234107

申请日：2021-04-19

Applicant: Rosemount Inc

Inventor： Pavel SHUK ,  Dirk W. BAUSCHKE ,  David LOBERG ,  Narendra KULKARNI ,  Tejas DUBE ,  Tushar SONAWANE

IPC: F23N5/00 ,  G01N1/22

Abstract: 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.

公开(公告)号：US11226255B2

公开(公告)日：2022-01-18

申请号：US15279609

申请日：2016-09-29

Applicant: Rosemount Inc.

Inventor： John Edward Rodeheffer

IPC: G01L19/04 ,  G01L19/00 ,  G01L13/02 ,  G01L9/00 ,  G01L19/14

Abstract: 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.

公开(公告)号：US11204340B2

公开(公告)日：2021-12-21

申请号：US16138269

申请日：2018-09-21

Applicant: Rosemount Inc.

Inventor： Steven S. Black

IPC: G01N30/54 ,  G01N30/30 ,  G01N30/02

Abstract: A heating assembly includes a base plate. The heating assembly also includes a heating component coupled to the base plate configured to heat an enclosure of the heating assembly and a fan assembly coupled to the base plate configured to circulate the heated air within the enclosure of the heating assembly.

公开(公告)号：US11181570B2

公开(公告)日：2021-11-23

申请号：US16232194

申请日：2018-12-26

Applicant: Rosemount Inc.

Inventor： Jeffrey C. Andle ,  David Lane ,  Maly Chap

IPC: G01R31/14 ,  G01R35/00

Abstract: An apparatus for generating electrical discharge includes a component that generates an electrical discharge, a measurement circuit configured to measure a magnitude of the electrical discharge, and a controller configured to control the magnitudes of the electrical discharge. A method for controlling a reference partial discharge signal in an electric power system includes generating a partial discharge for built in self test, controlling an expected discharge magnitude of the partial discharge, and includes measuring an actual discharge magnitude of the partial discharge.

公开(公告)号：US11118989B2

公开(公告)日：2021-09-14

申请号：US16088569

申请日：2018-07-13

Applicant: Rosemount Inc.

Inventor： Baogang Li

IPC: G01L7/08 ,  G01L19/00 ,  F16J3/02 ,  G01L19/06

Abstract: A process diaphragm seal includes a seal body, a diaphragm, and a ring member. The seal body includes a flange that surrounds a cavity. The diaphragm includes an active portion that extends over the cavity and a peripheral portion that surrounds the active portion. The ring member clamps the peripheral portion of the diaphragm to an outer wall of the flange through an interference fit between an inner wall of the ring member and the outer wall of the flange. A seal is formed between the peripheral portion of the diaphragm and the outer wall of the flange.

公开(公告)号：US11079268B2

公开(公告)日：2021-08-03

申请号：US15850312

申请日：2017-12-21

Applicant: Rosemount Inc.

Inventor： Eric Russell Lovegren

IPC: G01F23/284 ,  G01S13/88 ,  G01S7/285 ,  G01S13/10 ,  H03M1/12

Abstract: A level transmitter includes an analog-to-digital convertor clock signal generator that receives a transmitter clock signal that is used to establish when an incident signal is transmitted toward a material boundary. The analog-to-digital convertor clock signal generator uses the received transmitter clock signal to generate an analog-to-digital convertor clock signal. An analog-to-digital convertor samples an analog waveform based on the analog-to-digital convertor clock signal and generates a digital value for each sample of the analog waveform. An analysis module analyzes the digital values to determine a distance to the material boundary.