Arrangement and method for identifying and correcting a faulty volumetric flow measurement

    公开(公告)号:US12098944B2

    公开(公告)日:2024-09-24

    申请号:US17754074

    申请日:2020-08-20

    摘要: An arrangement includes a pipeline and a Coriolis volumetric flow meter for measuring a mass flow rate of a medium flowing through the pipeline. A first pressure sensor is attached at an inlet-side of the pipeline and a second pressure sensor is attached at an outlet-side of the pipeline, or wherein a differential pressure sensor is configured to detect a difference between an inlet-side and an outlet-side. The pressure sensors and/or the differential pressure sensor are configured to measure a media pressure and to determine, for each differential pressure, a volumetric flow velocity of the medium through the pipeline. A first monitoring sensor is attached at an inlet-side portion of the pipeline and a second monitoring sensor is attached at an outlet-side portion of the pipeline, wherein the monitoring sensors are configured to monitor a measurement variable different from the media pressure to identify a static media state.

    Flow measuring device having a first and a second flow measuring transducer operating on different operating principles for improved measurement accuracy

    公开(公告)号:US12007268B2

    公开(公告)日:2024-06-11

    申请号:US17298050

    申请日:2019-10-31

    IPC分类号: G01F7/00 G01F1/34 G01F1/84

    摘要: A method for determining a flowed amount of a medium includes using a first flow measuring transducer according to a first measuring principle and a second flow measuring transducer according to a second measuring principle. The measured values of the first transducer are more reliable in first states of the medium than measured values of the second transducer, and the second measured values are more reliable in second states than the first measured values. A contribution to the flowed amount is ascertained based on the more reliable measured values. The contribution to the flowed amount based on the second measured values is ascertained via a transfer function. An updated version of the transfer function is ascertained when the first measured values are more reliable, and the flowed amount earlier ascertained based on the second measured values is corrected as a function of the updated transfer function.

    ARRANGEMENT AND METHOD FOR IDENTIFYING AND CORRECTING A FAULTY VOLUMETRIC FLOW MEASUREMENT

    公开(公告)号:US20220333971A1

    公开(公告)日:2022-10-20

    申请号:US17754074

    申请日:2020-08-20

    IPC分类号: G01F25/10 G01F1/84 G01F1/36

    摘要: An arrangement includes a pipeline and a Coriolis volumetric flow meter for measuring a mass flow rate of a medium flowing through the pipeline. A first pressure sensor is attached at an inlet-side of the pipeline and a second pressure sensor is attached at an outlet-side of the pipeline, or wherein a differential pressure sensor is configured to detect a difference between an inlet-side and an outlet-side. The pressure sensors and/or the differential pressure sensor are configured to measure a media pressure and to determine, for each differential pressure, a volumetric flow velocity of the medium through the pipeline. A first monitoring sensor is attached at an inlet-side portion of the pipeline and a second monitoring sensor is attached at an outlet-side portion of the pipeline, wherein the monitoring sensors are configured to monitor a measurement variable different from the media pressure to identify a static media state.

    METHOD FOR OPERATING A FIELD DEVICE IN THE FIELD OF AUTOMATION ENGINEERING

    公开(公告)号:US20200183346A1

    公开(公告)日:2020-06-11

    申请号:US16341122

    申请日:2017-08-29

    IPC分类号: G05B19/042 G06F8/38 G06F9/451

    摘要: The present disclosure relates to a method for operating a field device in the field of automation engineering using an operating appliance with a homogeneously produced, application-specific user interface, the method including: a) connecting the operating appliance to the field device; b) inputting an application-specific request in the operating appliance; c) transmitting the specific request to the interpreter; d) sending data and procedures corresponding to the specific request back to the operating appliance; e) forwarding the data and procedures corresponding to the specific request from the operating appliance to the field device; f) implementing the data and procedures corresponding to the specific request in the field device; and g) the method continues with method steps b) to f), the specific request being determined by the interpreter according to the operator input.

    Measuring Transducer of Vibration-Type as well as Measuring System formed therewith

    公开(公告)号:US20170261474A1

    公开(公告)日:2017-09-14

    申请号:US15531787

    申请日:2015-11-03

    摘要: A measuring transducer comprises two flow dividers having, in each case, two tubular chambers separated from one another and adapted for guiding in- and out flowing fluid, of which each has a chamber floor, in which are formed, in each case, two mutually spaced flow openings communicating with a lumen of the chamber, and as well as a tube arrangement having at least four measuring tubes connected to the flow dividers for guiding flowing fluid with parallel flow. Moreover, the measuring transducer comprises an electromechanical exciter mechanism for exciting mechanical oscillations of the measuring tubes as well as a sensor arrangement for registering oscillatory movements of the measuring tubes and for generating at least two oscillation measurement signals representing oscillations of at least one of the measuring tubes. The measuring system includes besides the measuring transducer also transmitter electronics electrically connected therewith for activating the exciter mechanism and for processing at least one of the oscillation measurement signals generated by the sensor arrangement.

    METHOD FOR DETERMINING A FLOWED AMOUNT OF A FLOWABLE MEDIUM AND MEASURING STATION THEREFOR

    公开(公告)号:US20220099470A1

    公开(公告)日:2022-03-31

    申请号:US17298050

    申请日:2019-10-31

    IPC分类号: G01F7/00 G01F1/34 G01F1/84

    摘要: Disclosed is a method for determining a flowed amount of a medium using a first flow measuring transducer according to a first measuring principle and a second flow measuring transducer according to a second measuring principle. The measured values of the first transducer are more reliable in first states of the medium than measured values of the second transducer, and the second measured values are more reliable in second states than the first measured values. A contribution to the flowed amount is ascertained based on the more reliable measured values. The contribution to the flowed amount based on the second measured values is ascertained by means of a transfer function. An updated version of the transfer function is ascertained when the first measured values are more reliable, and the flowed amount earlier ascertained based on the second measured values is corrected as a function of the updated transfer function.

    Arrangement and field device of process measurements technology

    公开(公告)号:US10269336B2

    公开(公告)日:2019-04-23

    申请号:US15555714

    申请日:2016-02-15

    摘要: An arrangement comprising an ultrasonic transducer and a damping element with a longitudinal axis, which damping element connects the ultrasonic transducer with a housing- or measuring tube wall. The transducer has an end piece with a medium-contacting surface, from which ultrasonic signals are transferred into a gaseous or liquid medium. The damping element has at least two annular grooves and an annular mass segment arranged therebetween, characterized in that the damping element has a first eigenfrequency, in which the annular mass segment executes an axial movement parallel to the longitudinal direction of the damping element. This first eigenfrequency is the highest eigenfrequency, in the case that a plurality of eigenfrequencies are present, in the case of which the annular mass segment executes an axial movement parallel to the longitudinal direction of the damping element, and the damping element has a second eigenfrequency, in which the annular mass segment executes a rotary movement. This second eigenfrequency is the lowest eigenfrequency, in the case that a plurality of eigenfrequencies are present, in the case of which the annular mass segment executes a rotary movement, will and wherein the ratio of the first eigenfrequency to the second eigenfrequency is less than 0.75; and a field device of process measurements technology.

    MAGNETO-INDUCTIVE FLOW MEASURING DEVICE
    10.
    发明申请

    公开(公告)号:US20180364081A1

    公开(公告)日:2018-12-20

    申请号:US16061269

    申请日:2016-11-15

    IPC分类号: G01F1/58 G01F1/60

    摘要: The invention relates to a magneto-inductive flow measuring device for measuring flow velocity or volume flow of a medium in a pipeline as well as to a method for implementing the magneto-inductive flow measuring device. In such case, the remanent magnetic field of at least one permanent magnet is applied for flow monitoring and flow measurement, wherein the flow measurement is performed upon achievement of criteria.