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    Clamp-on ultrasonic transducer arrangement independent of measuring tube diameter at a measuring point
    1.
    发明授权
    Clamp-on ultrasonic transducer arrangement independent of measuring tube diameter at a measuring point 有权

    公开(公告)号：US11841254B2

    公开(公告)日：2023-12-12

    申请号：US17413334

    申请日：2019-11-21

    Applicant: Endress+Hauser Flowtec AG

    Inventor： Sascha Grunwald ,  Oliver Brumberg ,  Alexander Murray ,  Andreas Berger ,  Achim Wiest

    IPC: G01F1/66

    CPC classification number: G01F1/662 ,  G01F1/666

    Abstract: An ultrasonic transducer arrangement for a clamp-on ultrasonic, flow measuring point includes a plurality of ultrasonic transducers, each adapted to radiate ultrasonic signals into the measuring tube and/or to receive ultrasonic signals emerging from the measuring tube, wherein a first group of first ultrasonic transducers is arranged on a first side of the measuring tube, and a second group of second ultrasonic transducer is arranged on a second side of the measuring tube opposite the first side, wherein at least one first/second ultrasonic transducer is adapted to receive ultrasonic signals of at least one second/first ultrasonic transducer, respectively, wherein adjoining ultrasonic transducers of the first group have, in each case, first separations from one another, and wherein adjoining ultrasonic transducers of the second group have, in each case, second separations from one another.

    Flow measuring device, as well as use of such device and method for ascertaining flow velocity
    4.
    发明授权
    Flow measuring device, as well as use of such device and method for ascertaining flow velocity 有权

    公开(公告)号：US10281316B2

    公开(公告)日：2019-05-07

    申请号：US14432221

    申请日：2013-09-19

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Paul Ceglia ,  Achim Wiest ,  Oliver Brumberg

    IPC: G01F25/00 ,  G01F1/66 ,  G01F1/692 ,  G01F1/708 ,  G01F7/00

    Abstract: A flow measuring device for ascertaining a corrected measured value of a flow velocity and/or a corrected mass flow of a medium, especially a gas, in a measuring tube, including: an apparatus for ascertaining a first measured value of flow velocity and/or mass flow of the medium by thermal, mass flow measurement; an apparatus for ascertaining velocity of sound and/or frequency dependent damping of an acoustic signal, especially an ultrasonic signal, in the medium and/or an apparatus for ascertaining an optical, wavelength dependent absorption of an optical and/or excited fluorescence of the medium, and an evaluation unit for correcting the ascertained first measured value of mass flow or flow velocity based on the ascertained sound velocity values and/or the frequency dependent, ascertained damping values of the acoustic signal and/or the ascertained absorption values of the optical signal and/or the florescence values of the medium, and method for ascertaining a corrected measured value of flow velocity and/or mass flow, and use of the device and method.

    Ultrasonic flow measuring device having a downstream resistance network for improved zero point stability
    5.
    发明授权
    Ultrasonic flow measuring device having a downstream resistance network for improved zero point stability 有权

    公开(公告)号：US10145714B2

    公开(公告)日：2018-12-04

    申请号：US14647140

    申请日：2013-11-12

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Achim Wiest ,  Oliver Brumberg

    IPC: G01F1/66

    Abstract: A field device, especially an ultrasonic, flow measuring device, comprising: a transmitter for producing an alternating exciter signal; and at least one transducer, especially first and second ultrasonic transducers. The transmitter additionally has a generator for producing the alternating exciter signal and a transmitting stage, wherein the generator is connected via the transmitting stage with at least the first ultrasonic transducer. An output of the transmitting stage is connected with the transducer, especially the first ultrasonic transducer, via a first signal path, wherein the first signal path has a first resistance element, wherein a second signal path branches from the first signal path, wherein the second signal path has a second resistance element connected on one side to ground for lessening impedance related fluctuations of the exciter signal, wherein the second signal path branches from the first signal path between the output of the transmitting stage and the first resistance element.

    Coupling element, ultrasonic transducer and ultrasonic flow meter
    6.
    发明授权
    Coupling element, ultrasonic transducer and ultrasonic flow meter 有权

    公开(公告)号：US09897471B2

    公开(公告)日：2018-02-20

    申请号：US14787543

    申请日：2014-04-11

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Achim Wiest ,  Andreas Berger ,  Sascha Grunwald

    IPC: G01F1/66 ,  G01F15/00

    CPC classification number: G01F1/662 ,  G01F15/006

    Abstract: A coupling element for an ultrasonic transducer, which comprises a first recess provided for the arrangement of a piezoelectric element and comprising a terminal base surface in which an ultrasound signal generated by the piezoelectric element can be fed into the coupling element. The coupling element comprising inside the first recess one or a plurality of stops, each of which comprises at least one stop surface which extends along a plane, the plane extending parallel to the base surface of the first recess, and there being defined between this plane and the base surface a space for accommodating material for an acoustic adaptation layer. The invention further concerns an ultrasonic transducer and an ultrasonic flow meter.

    FIELD DEVICE, ESPECIALLY AN ULTRASONIC, FLOW MEASURING DEVICE
    8.
    发明申请
    FIELD DEVICE, ESPECIALLY AN ULTRASONIC, FLOW MEASURING DEVICE 审中-公开
    现场设备，特别是超声波流量测量装置

    公开(公告)号：US20150316400A1

    公开(公告)日：2015-11-05

    申请号：US14647140

    申请日：2013-11-12

    Applicant: ENDRESS+HAUSER FLOWTEC AG

    Inventor： Achim Wiest ,  Oliver Brumberg

    IPC: G01F1/66

    CPC classification number: G01F1/66 ,  G01F1/667

    Abstract: A field device, especially an ultrasonic, flow measuring device, comprising: a transmitter for producing an alternating exciter signal; and at least one transducer, especially first and second ultrasonic transducers. The transmitter additionally has a generator for producing the alternating exciter signal and a transmitting stage, wherein the generator is connected via the transmitting stage with at least the first ultrasonic transducer. An output of the transmitting stage is connected with the transducer, especially the first ultrasonic transducer, via a first signal path, wherein the first signal path has a first resistance element, wherein a second signal path branches from the first signal path, wherein the second signal path has a second resistance element connected on one side to ground for lessening impedance related fluctuations of the exciter signal, wherein the second signal path branches from the first signal path between the output of the transmitting stage and the first resistance element.

    Abstract translation: 一种现场设备，特别是超声波流量测量装置，包括：用于产生交流励磁信号的发射机; 以及至少一个换能器，特别是第一和第二超声换能器。 发射机另外具有用于产生交流激励器信号的发生器和发射级，其中发电机至少经由第一超声换能器经由发射级连接。 发射级的输出经由第一信号路径与换能器，特别是第一超声波换能器相连，其中第一信号路径具有第一电阻元件，其中第二信号路径从第一信号路径分支，其中第二信号路径 信号路径具有一侧连接到地的第二电阻元件，用于减小与激励器信号相关的阻抗相关的波动，其中第二信号路径从发射级的输出与第一电阻元件之间的第一信号路径分支。

    METHOD FOR HEAT QUANTITY MEASUREMENT WITH AN ULTRASONIC, FLOW MEASURING DEVICE
    9.
    发明申请
    METHOD FOR HEAT QUANTITY MEASUREMENT WITH AN ULTRASONIC, FLOW MEASURING DEVICE 审中-公开
    用超声波流量测量装置进行热量测量的方法

    公开(公告)号：US20150043612A1

    公开(公告)日：2015-02-12

    申请号：US14359650

    申请日：2012-10-24

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Achim Wiest ,  Oliver Brumberg ,  Andreas Berger

    IPC: G01K13/02 ,  G01L13/00 ,  G01K7/16 ,  G01F1/66 ,  G01K11/24

    CPC classification number: G01K13/02 ,  G01F1/662 ,  G01F1/667 ,  G01F1/668 ,  G01K7/16 ,  G01K11/24 ,  G01K17/10 ,  G01L13/00

    Abstract: A method and apparatus for heat quantity measurement, wherein, with an ultrasonic, flow measuring device, which works according to the travel time difference principle, the flow of a fluid of known chemical composition through the lumen of a pipeline is ascertained, and wherein the temperature of the fluid before and after a heat transferer is ascertained, wherein, for a first ascertaining of the temperature of the fluid, the velocity of sound in the fluid is ascertained with the ultrasonic, flow measuring device and a temperature is ascertained outside of the lumen of the pipeline.

    Abstract translation: 一种用于热量测量的方法和装置，其中，利用根据行进时间差原理工作的超声波流量测量装置，确定已知化学成分的流体通过管道的内腔的流动，并且其中 确定热传导器之前和之后的流体温度，其中，为了首先确定流体的温度，用超声波，流量测量装置确定流体中的声速，并且在 流明管道。

    ARRANGEMENT OF ULTRASONIC TRANSDUCERS, CLAMP-ON ULTRASONIC MEASURING DEVICES HAVING AN ARRANGEMENT OF THIS TYPE, AND METHOD FOR ADJUSTING THE ULTRASONIC MEASURING DEVICE
    10.
    发明公开
    ARRANGEMENT OF ULTRASONIC TRANSDUCERS, CLAMP-ON ULTRASONIC MEASURING DEVICES HAVING AN ARRANGEMENT OF THIS TYPE, AND METHOD FOR ADJUSTING THE ULTRASONIC MEASURING DEVICE 审中-公开

    公开(公告)号：US20240288292A1

    公开(公告)日：2024-08-29

    申请号：US18567447

    申请日：2022-05-18

    Applicant: Endress+Hauser Flowtec AG

    Inventor： Achim Wiest ,  Michal Bezdek ,  Frank Wandeler

    IPC: G01F1/66 ,  G01F1/667

    CPC classification number: G01F1/662 ,  G01F1/667

    Abstract: An arrangement of ultrasonic transducers of a clamp-on ultrasonic measuring device includes at least one pair of ultrasonic transducers, which include: in a measurement arrangement, an axial arrangement distance relative to a measurement tube axis; an emitting transducer apparatus designed to generate an ultrasonic signal field, which has, in the coupling body, a first longitudinal axis parallel to a transducer longitudinal axis; the ultrasonic signal field has an opening angle in the medium; the first longitudinal axis defines a reference signal path; the reference signal path defines an axial reference distance of a reference arrangement relative to centroids of the ultrasonic transducers; the axial arrangement distance is determined by the centroids; the arrangement distance is less than the reference distance; and a target difference between the reference distance and the arrangement distance is dependent on at least the opening angle of the ultrasonic signal field in the medium.

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