FLUID FLOW OBSTRUCTION DEVICE FOR A PROCESS FLUID FLOW MEASUREMENT DEVICE

    公开(公告)号:US20220155113A1

    公开(公告)日:2022-05-19

    申请号:US17098917

    申请日:2020-11-16

    Applicant: Rosemount Inc.

    Abstract: A fluid flow obstruction device for a process fluid flow measurement device includes a first wall having a first side. A second wall having a proximate end is arranged at a proximate end of the first side of the first wall. The arrangement forms a first apex between the first wall and the second wall. At least one additional wall is arranged parallel to the second wall at a distance from the proximate end of the first side of the first wall. The arrangement of the at least one additional wall and the first wall forms a corresponding additional apex.

    Non-invasive process fluid temperature indication with reduced error

    公开(公告)号:US11320316B2

    公开(公告)日:2022-05-03

    申请号:US16296521

    申请日:2019-03-08

    Applicant: Rosemount Inc.

    Abstract: A process fluid temperature estimation system includes a mounting assembly, a sensor capsule, measurement circuitry, and a controller. The mounting assembly is configured to mount the process fluid temperature estimation system to an external surface of a process fluid conduit. The sensor capsule has an end that is configured to contact the external surface of the process fluid conduit to form an interface having a contact region and an air gap. The sensor capsule also has at least one temperature sensitive element disposed therein. The measurement circuitry is coupled to the sensor capsule and configured to detect an electrical characteristic of the at least one temperature sensitive element that varies with temperature and provide at least process fluid conduit skin temperature information. The controller is coupled to the measurement circuitry and is configured to obtain the process fluid conduit skin temperature information from the measurement circuitry and to obtain reference temperature information. The controller is configured to obtain a heat flow parameter related to the air gap of the interface and to employ a heat transfer calculation with the process fluid conduit skin temperature information, reference temperature information, and heat flow parameter to generate an estimated process fluid temperature output.

    FIELD DEVICE HOUSING ASSEMBLY
    373.
    发明申请

    公开(公告)号:US20220099516A1

    公开(公告)日:2022-03-31

    申请号:US17039222

    申请日:2020-09-30

    Applicant: Rosemount Inc.

    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.

    POLYSILICON ON SAPPHIRE OIL-LESS PRESSURE SENSOR

    公开(公告)号:US20220090977A1

    公开(公告)日:2022-03-24

    申请号:US17026831

    申请日:2020-09-21

    Applicant: Rosemount Inc.

    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 is positioned to interface with fluid from or coupled to a process. 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.

    Non-invasive process fluid flow indication using temperature difference

    公开(公告)号:US11248940B2

    公开(公告)日:2022-02-15

    申请号:US16722276

    申请日:2019-12-20

    Applicant: Rosemount Inc.

    Abstract: A process fluid flow system includes a first pipe skin sensor and a second pipe skin sensor. The first pipe skin sensor is disposed to measure an external temperature of a process fluid conduit at a first location on the process fluid conduit. The second pipe skin sensor is disposed to measure an external temperature of a process fluid conduit at a second location on the process fluid conduit. Measurement circuitry is coupled to the first and second pipe skin sensors. A controller is coupled to the measurement circuitry and is configured to identify a process fluid flow condition based on signals from the first and second pipe skin sensors and to output an indication of the process fluid flow condition.

    Process transmitter having a rotatable coupling

    公开(公告)号:US11248936B2

    公开(公告)日:2022-02-15

    申请号:US15735334

    申请日:2017-08-29

    Applicant: Rosemount Inc.

    Inventor: Fang Chen

    Abstract: An industrial process transmitter includes a main housing, a sensor body, and a flange member. The main housing contains transmitter circuitry and includes a first threaded portion. The sensor body includes a process sensor and a second threaded portion in threaded engagement with the first threaded portion. One of the first and second threaded portions includes a threaded cylindrical projection, and the other includes a threaded cylindrical bore. The flange member is received within a groove of the projection. Movement of the sensor body relative to the housing along an axis of the bore is restricted to an axial distance through engagement between the flange and the first or second threaded portion that includes the threaded cylindrical bore, and engagement between the main housing and the sensor body. Rotation of the sensor body relative to the housing about the axis is limited by the axial distance.

    Pressure sensing device isolation cavity seal monitoring

    公开(公告)号:US11243134B2

    公开(公告)日:2022-02-08

    申请号:US16588489

    申请日:2019-09-30

    Applicant: Rosemount Inc.

    Abstract: An industrial process differential pressure sensing device includes a housing having first and second isolation cavities that are respectively sealed by first and second diaphragms, a differential pressure sensor, a static pressure sensor, an eddy current displacement sensor, and a controller. The static pressure sensor is configured to output a static pressure signal that is based on a pressure of fill fluid in the first isolation cavity. The differential pressure sensor is configured to output a differential pressure signal that is indicative a pressure difference between the first and second isolation cavities. The eddy current displacement sensor is configured to output a position signal that is indicative of a position of the first isolation diaphragm relative to the housing. The controller is configured to detect a loss of a seal of the isolation cavity based on the position signal, the static pressure signal and the differential pressure signal.

    PRESSURE SENSOR ASSEMBLY
    379.
    发明申请

    公开(公告)号:US20210396615A1

    公开(公告)日:2021-12-23

    申请号:US16906194

    申请日:2020-06-19

    Applicant: Rosemount Inc.

    Abstract: A pressure sensor assembly includes a pressure sensor, a pedestal and an electrically conductive header having a header cavity. The pressure sensor includes, an electrically conductive sensing layer having a sensor diaphragm, an electrically conductive backing layer having a bottom surface that is bonded to the sensing layer, an electrically insulative layer having a bottom surface that is bonded to a top surface of the backing layer, and a sensor element having an electrical parameter that changes based on a deflection of the sensor diaphragm in response to a pressure difference. The pedestal is bonded to the electrically insulative layer and attached to the header within the header cavity.

    Self-Assembling Antenna Networks and Antenna Feed Circuits for Same

    公开(公告)号:US20210391100A1

    公开(公告)日:2021-12-16

    申请号:US17345971

    申请日:2021-06-11

    Applicant: Rosemount Inc.

    Abstract: The disclosed embodiments provide a plurality of antennas that can be interconnected with each other and with a central receiver in a self-assembling manner, such that antennas can be added, removed, and replaced with minimal configuration. Each antenna comprises an antenna feed circuit, an input connector, and an output connector. Each of the antennas may be configured to assign a first set of signal channels at its output connector to a second set of signal channels at its input connector (or vice versa) according to a predetermined or dynamically determined mapping. Each antenna may be further configured to assign a signal channel at its input connector to the signal it receives at its antenna feed circuitry. By sharing the same configuration for mapping signal channels between the antennas' input and output connectors and feed circuitry, the antennas can be added or removed in a sequence of antennas using simple cable connections and without having to rewire the connections at the central receiver.

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