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公开(公告)号：US20210231472A1
公开(公告)日：2021-07-29
申请号：US16652478
申请日：2019-09-25
Applicant: Rosemount Inc.
Inventor： Vladimir D. Bogdanov
Abstract: An industrial process field device includes a piezoelectric transducer, a sensor circuit, a test circuit, a controller and a communications circuit. The sensor circuit generates a sensor signal indicating a process variable based on a voltage across the piezoelectric transducer. The test circuit is configured to apply a voltage pulse having a pulse voltage to the piezoelectric transducer that induces a response signal, and capture peak positive and negative voltages of the response signal. The controller calculates a current condition value of the piezoelectric transducer based on the peak positive voltage, the peak negative voltage and the pulse voltage, and generates a diagnostic test result based on a comparison of the current condition value to a reference condition value corresponding to a properly operating piezoelectric transducer. The communications circuit communicates the process variable and the diagnostic test result to an external control unit over a process control loop.
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公开(公告)号：US20210190619A1
公开(公告)日：2021-06-24
申请号：US16725035
申请日：2019-12-23
Applicant: Rosemount Inc.
Abstract: A process pressure transmitter includes transmitter electronics disposed within a housing. The transmitter electronics includes a communications circuit coupled to a processing system and an analog to digital converter disposed within the housing. The analog to digital converter electrically is coupled to the transmitter electronics. A pressure sensor comprises a cell body defining an interior cavity. A deflectable diaphragm comprising a second material is coupled to the cell body and separates the interior cavity into a first cavity and a second cavity. The deflectable diaphragm includes a groove region located around a periphery of the deflectable diaphragm. The first and second cavities each contain a dielectric fill-fluid, each of the fill fluids adapted to receive a pressure and exert a corresponding force on the diaphragm, and the diaphragm is deflectable in response to differences in the pressures received by the fill-fluids in the first and second cavities. A first electrode is capacitively coupled to the diaphragm to form a first variable capacitor and a first lead wire electrically connects to the first electrode. A second electrode is capacitively coupled to the diaphragm to form a second capacitor and a second lead wire is electrically coupled to the second electrode. The first and second lead wires are electrically coupled to the analog to digital converter.
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公开(公告)号：US11041773B2
公开(公告)日：2021-06-22
申请号：US16368265
申请日：2019-03-28
Applicant: Rosemount Inc.
Abstract: A sensor body cell for use in a pressure sensor includes a metal housing and an insulating cell. The metal housing has a first cavity with a first conical inner surface. A portion of the first conical inner surface is concave. The insulating cell includes a first seal portion within the first cavity and forms a seal with the first conical inner surface.
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公开(公告)号：US11041660B2
公开(公告)日：2021-06-22
申请号：US16422201
申请日：2019-05-24
Applicant: Rosemount Inc.
Inventor： Steven S. Black , Willis Watkins , Jason P. Pratt
Abstract: A heating assembly includes a heater extending in a longitudinal direction from a first end to a second end. Heat transfer fins are thermally coupled to the heater and extend in a direction transverse to the longitudinal direction. An airflow component is positioned proximate one of the first and second end and is configured to generate airflow along the plurality of heat transfer fins toward the other of the first and second end.
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公开(公告)号：US11002628B2
公开(公告)日：2021-05-11
申请号：US16136716
申请日：2018-09-20
Applicant: Rosemount Inc.
Inventor： Donald Gary Bergquist
Abstract: A thermowell assembly for use in measuring a temperature of a process fluid includes an elongate thermowell body configured to mount to a process vessel and extend into the process fluid. An elongate bore extends along a length of the thermowell body from a proximal end of the thermowell body proximate a wall of the process vessel to a sealed distal end of the thermowell body positioned in the process fluid. A side bore extends from an exterior of the thermowell assembly to the elongate bore. The side bore is positioned outside of the process vessel. A verification valve includes an inlet coupled to the side bore at the exterior of the thermowell assembly and further includes an outlet.
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Patent Agency Ranking
公开(公告)号：US10914635B2
公开(公告)日：2021-02-09
申请号：US14499719
申请日：2014-09-29
Applicant: Rosemount Inc.
Inventor： Theodore Henry Schnaare
Abstract: An industrial process monitor for monitoring an industrial process includes a controller configured to control operation of the industrial process monitor. An ambient environment sensor is configured to sense an ambient environment of the industrial process proximate the device and responsively provide a sensor output signal. Output circuitry is configured to provide an output based upon the sensor output signal. The controller causes the ambient environment sensor to enter a high power mode upon detection of an anomaly and/or probable anomaly in the sensor output signal.
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公开(公告)号：US10823592B2
公开(公告)日：2020-11-03
申请号：US14038185
申请日：2013-09-26
Applicant: Rosemount Inc.
Inventor： Robert C. Hedtke
Abstract: A field device for monitoring a process variable of an industrial process includes an image capture device. A process component exhibits relative motion as a function of a process variable. The image captures device captures an image which changes due to the relative motion of the process component. An image processor coupled to the image capture device detects relative motion of the process component and measures the process variable based upon the detected relative motion. Output circuitry provides an output related to the measured process variable.
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公开(公告)号：US20200333204A1
公开(公告)日：2020-10-22
申请号：US16616736
申请日：2019-05-17
Applicant: Rosemount Inc.
Inventor： Fang Chen , Baogang Li , Paul Fadell
IPC: G01L13/02 , G01L19/06 , B23K11/093
Abstract: The present disclosure is provided with a measuring element (M) and a measuring device. The measuring element includes a base body, a diaphragm and a permeation resistant layer, the diaphragm is fixedly connected to the base body, with a sealed cavity being defined between the diaphragm and the base body. The permeation resistant layer is arranged on an inner side surface, facing the sealed cavity, of the diaphragm, and extended continuously on the inner side surface of the diaphragm at least beyond a connection region of the diaphragm with the base body. The measuring device includes the measuring element (M).
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公开(公告)号：US20200284681A1
公开(公告)日：2020-09-10
申请号：US16834373
申请日：2020-03-30
Applicant: Rosemount Inc.
Abstract: A remote seal assembly for a process transmitter includes a seal body containing a cavity sealed by a diaphragm. The seal body configured to be mounted to a process element containing a process fluid such that a first side of the diaphragm is exposed to the process fluid. A capillary contains a fill fluid that is in fluid communication with the cavity and a second side of the diaphragm. A coupling has a capillary recess and two cavities separated by a second diaphragm. The capillary extends through the capillary recess and connects to the coupling such that the fill fluid in the capillary is in fluid communication with one of the two cavities and the second diaphragm. A thermally conductive element preferably extends continuously along the capillary from the seal body toward the coupling and into the capillary recess without contacting the coupling.
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公开(公告)号：US10706810B2
公开(公告)日：2020-07-07
申请号：US16142358
申请日：2018-09-26
Applicant: Rosemount Inc.
Inventor： Jared Evans Sweet
Abstract: A display assembly with a software rotatable content layout for a process control transmitter. The assembly has a display screen configured for displaying the rotatable content layout in a plurality of configurations and at least one physical button fixedly positioned proximate one side of the display screen. In one embodiment, the display layout comprises an upper perimeter band and a lower perimeter band reserved for displaying at least one label and a right side band and a left side band reserved for displaying an indicator attached to the at least one label and a third, interior region reserved for displaying additional text such that the at least one label is visually attached to the physical button proximate the one side of the display screen. The display is rotatable to maintain content in a viewer orientation such that at least one label is visually tied to at least one physical button in each of the plurality of configurations.
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