Flow measurement system for single-use containers

    公开(公告)号:US09909909B2

    公开(公告)日:2018-03-06

    申请号:US15072128

    申请日:2016-03-16

    Applicant: Rosemount Inc.

    CPC classification number: G01F1/44

    Abstract: A venturi flowmeter for connection to single-use containers is provided. The venturi flowmeter includes a meter body formed of a polymer and configured to allow fluid flow therethrough. A first annular diaphragm is mounted proximate an inner surface of the meter body has a first internal diameter. A second annular diaphragm is mounted proximate an inner surface of the meter body has a second internal diameter different from the first internal diameter.

    Multivariable guided wave radar probe

    公开(公告)号:US09841307B2

    公开(公告)日:2017-12-12

    申请号:US14501954

    申请日:2014-09-30

    Applicant: Rosemount Inc.

    Inventor: Robert C. Hedtke

    CPC classification number: G01F23/284 G01S13/86 G01S13/88

    Abstract: A multivariable fluid level detection system comprising a guided wave radar probe with sensor or sensors integral to the probe for producing sensor signal(s), a transmitter for transmitting guided microwave pulses down the probe, a receiver for receiving reflected microwave pulses, and a processor for producing a measurement of fluid level based upon a time difference between transmission of a pulse and receipt of a reflected pulse and the sensor signal(s).

    Process measurement system with variable amplitude sensor excitation

    公开(公告)号:US09778074B2

    公开(公告)日:2017-10-03

    申请号:US13827390

    申请日:2013-03-14

    Applicant: Rosemount Inc.

    CPC classification number: G01D5/24

    Abstract: A process measurement system includes a sensor for producing a sensor signal as a function of a process parameter and a measurement circuit that converts the sensor signal to measurement data. A control circuit controls the amplitude of the sensor excitation to maximize signal strength over the entire operating ratio range of the sensor. This enhances resolution and noise rejection of the measurement circuit.

    Fill fluid thermal management
    76.
    发明授权

    公开(公告)号:US09772246B2

    公开(公告)日:2017-09-26

    申请号:US14501691

    申请日:2014-09-30

    Applicant: Rosemount Inc.

    CPC classification number: G01L19/04 G01L19/0007 G01L19/0046 G01L19/0681

    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.

    FLUID FILLED ELONGATE PRESSURE SENSOR
    77.
    发明申请

    公开(公告)号:US20170268949A1

    公开(公告)日:2017-09-21

    申请号:US15070318

    申请日:2016-03-15

    Applicant: Rosemount Inc.

    CPC classification number: G01L9/0051 G01B7/18 G01L9/0002 G01L19/0046 G01L19/04

    Abstract: A pressure sensor includes an elongate body which deforms in response to an applied pressure having a cavity formed therein. An isolation diaphragm seals the cavity from a process fluid and is configured to deflect in response to applied process pressure from the process fluid. An isolation fill fluid in the cavity applies pressure to the elongate body in response to deflection of the isolation diaphragm thereby causing deflection of the elongate body. A deformation sensor is coupled to the elongate body and provides a sensor output in response to deformation of the elongate body which is indicative of the process pressure.

    Magnetic flowmeter with automatic adjustment based on sensed complex impedance

    公开(公告)号:US09696188B2

    公开(公告)日:2017-07-04

    申请号:US13826839

    申请日:2013-03-14

    Applicant: Rosemount Inc.

    CPC classification number: G01F1/60 G01F1/58

    Abstract: A magnetic flowmeter comprises a pipe section for process flow, a coil for generating a magnetic field across the pipe section, a current source for energizing the coil to generate the magnetic field at a coil drive frequency, and electrodes for sensing voltage induced across the process flow by the magnetic field. A processor calculates a function of the sensed voltage and generates a flow output based on the function. The processor adjusts an operating parameter of the flowmeter, such as electrode voltage sampling period, the coil drive frequency, or a phase shift, as a function of a sensed electrode-to-electrode or electrode-to-ground complex impedance.

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