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    Method for ascertaining at least one pipe wall resonance frequency, as well as clamp-on, ultrasonic, flow measuring device
    1.
    发明授权
    Method for ascertaining at least one pipe wall resonance frequency, as well as clamp-on, ultrasonic, flow measuring device 有权

    公开(公告)号：US11435219B2

    公开(公告)日：2022-09-06

    申请号：US15569178

    申请日：2016-04-26

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Peter Ploss ,  Stefan Rupitsch ,  Michal Bezdek ,  Thomas Frohlich ,  Beat Kissling

    IPC: G01F25/10 ,  G01F1/667 ,  G01F15/02 ,  G01F1/66 ,  G01N29/12

    Abstract: A method for ascertaining at least one pipe wall resonance frequency of a pipeline in the region of a measuring point by means of a field device of process measurements technology having at least a first ultrasonic transducer, which is placed on the pipeline at the measuring point, comprising steps as follows: providing a first transfer function Utransducer(f) at least of the first or a plurality of ultrasonic transducers located in the region of the measuring point; ascertaining a received spectrum Urec(f) from a received signal Urec(t) after transmission of an ultrasonic signal; ascertaining a second transfer function Umeasuring point(f) from the first transfer function Utransducer(f) of the first or the plurality of ultrasonic transducers and from the received spectrum urec(f), wherein the second transfer function Umeasuring point(f) is characteristic for the measuring point; and ascertaining the at least one pipe wall resonance frequency fres, especially a plurality of resonance frequencies, in the region of the measuring point by evaluating the second transfer function Umeasuring point(f) from step III, as well as a clamp-on, ultrasonic, flow measuring device, a method for ascertaining flow, a method for ascertaining a change of the measuring point and an identification device.

    METHOD FOR ASCERTAINING A COMPENSATED FLOW AND/OR A COMPENSATED FLOW VELOCITY, ULTRASONIC, FLOW MEASURING DEVICE AND COMPUTER PROGRAM PRODUCT
    3.
    发明申请
    METHOD FOR ASCERTAINING A COMPENSATED FLOW AND/OR A COMPENSATED FLOW VELOCITY, ULTRASONIC, FLOW MEASURING DEVICE AND COMPUTER PROGRAM PRODUCT 有权
    补偿流量和/或补偿流动速度的方法，超声波，流量测量装置和计算机程序产品

    公开(公告)号：US20160131516A1

    公开(公告)日：2016-05-12

    申请号：US14898197

    申请日：2014-05-19

    Applicant: ENDRESS + HAUSER FLOWTEC AG

    Inventor： Thomas Frohlich ,  Oliver Berberig ,  Beat Kissling ,  Quirin Muller ,  Klaus Bussinger

    IPC: G01F25/00 ,  G01F1/66

    CPC classification number: G01F25/0007 ,  G01F1/66 ,  G01F1/667

    Abstract: A method for ascertaining a compensated flow and/or a compensated flow velocity, wherein the compensation of a flow related measurement error occurs in the context of a flow measurement with a two path measuring of an ultrasonic, flow measuring device, comprising: an arrangement of at least two ultrasonic transducers pairs on a tube, or pipe, wherein the ultrasonic transducers are in a 180°, two path, one traverse, or a 90°, two path, two traverse arrangement, by means of an evaluation unit of a flow measuring device and/or a computer, characterized by steps as follows: a) feeding information relative to the type of a flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; b) feeding information relative to distance (xa-xd) of the arrangement of the ultrasonic transducer pairs from the flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; c) compensating a measurement error by means of a correction factor kD as a function of information from steps a) and b); and d) ascertaining a flow corrected by the correction factor kD and/or a flow velocity corrected by the correction factor kD, as well as an ultrasonic, flow measuring device and a computer program product.

    Abstract translation: 一种用于确定补偿流量和/或补偿流速的方法，其中流量相关测量误差的补偿在具有超声波流量测量装置的两路径测量的流量测量的上下文中发生，包括： 在管或管上的至少两个超声换能器对，其中超声波换能器通过流动的评估单元处于180°，两个路径，一个横移或90°，两个路径，两个横向排列 测量装置和/或计算机，其特征在于步骤如下：a）将相对于影响流量，管或管元件的类型的信息馈送到评估单元和/或计算机中; b）将相对于超声波换能器对的布置的距离（xa-xd）的信息从影响流量，管子或管道元件的信息馈送到评估单元和/或计算机中; c）通过作为来自步骤a）和b）的信息的函数的校正因子kD补偿测量误差; 以及d）确定通过校正因子kD校正的流量和/或由校正系数kD校正的流速以及超声波，流量测量装置和计算机程序产品。

    ULTRASONIC MEASURING DEVICE
    5.
    发明申请
    ULTRASONIC MEASURING DEVICE 有权

    公开(公告)号：US20220091072A1

    公开(公告)日：2022-03-24

    申请号：US17414423

    申请日：2019-12-10

    Applicant: Endress+Hauser Flowtec AG

    Inventor： Oliver Berberig ,  Jens Rautenberg ,  Beat Kissling ,  Sascha Grunwald ,  Rudolf Braun ,  Achim Stark ,  Klaus Beringer ,  Stefan Rüger ,  Theo Gerald Hofmann

    IPC: G01N29/24 ,  G01N29/44

    Abstract: An ultrasound instrument for detecting a measured value of a medium includes a measurement chamber having a chamber wall and a longitudinal axis; a pair of ultrasound transducers configured to transmit ultrasound signals along a signal path between ultrasound transducers of the pair through the measurement chamber and to receive ultrasound signals, wherein the signal path includes a signal reflection on a reflection surface, wherein the chamber wall in a region of the reflection surface opposite a first chamber side is configured to prevent a reflection of an ultrasound signal on a chamber outer surface of the chamber wall in the direction of the signal path, wherein the chamber wall has, in the region of the reflection surface, a maximum wall thickness which is at least a factor of 1.5 greater than a Rayleigh wavelength, associated with a central frequency, of the ultrasound signal in the chamber wall.

    Measuring system for measuring at least one parameter of a fluid
    7.
    发明授权
    Measuring system for measuring at least one parameter of a fluid 有权

    公开(公告)号：US10551230B2

    公开(公告)日：2020-02-04

    申请号：US15569162

    申请日：2016-05-09

    Applicant: Endress +Hauser Flowtec AG

    Inventor： Peter Ploss ,  Stefan Rupitsch ,  Michael Bezdek ,  Thomas Frohlich ,  Beat Kissling

    IPC: G01F1/66 ,  G01F25/00

    Abstract: A measuring system, embodied as a clamp-on, ultrasonic, flow measuring device, comprises a tube, or a pipe, having a lumen surrounded by a tube, or pipe, wall, which tube or pipe is adapted to guide a volume portion of the fluid in its lumen; an ultrasonic transducer mounted on the tube, or pipe, on an outside of the tube, or pipe, wall facing away from the lumen, and acoustically coupled via the tube, or pipe, wall to fluid guided in the lumen, and adapted to convert a time varying electrical voltage into ultrasonic waves propagating through the tube, or pipe, wall and further through fluid guided in the lumen; an ultrasonic transducer mounted on the tube, or pipe, separated from the ultrasonic transducer on the outside of the tube, or pipe, wall, and acoustically coupled via the tube, or pipe, wall to fluid guided in the lumen, and adapted to receive ultrasonic waves propagating through fluid guided in the lumen, and further through the tube, or pipe, wall and to transduce such into an electrical voltage varying as a function of time; as well as an operating- and measuring electronics adapted to generate, a driver signal for the ultrasonic transducer. The driver signal has a time variable, electrical voltage, for effecting a received signal, of the ultrasonic transducer likewise having an electrical voltage, uB,II, varying as a function of time, in such a manner that both the driver signal, as well as also the received signal, each contain a plurality of spectral signal components, equally as well, in each case, a dominating spectral signal component having a maximum power spectral density, and that a frequency, of the dominating signal component of the driver signal, deviates by a magnitude of no more than |±100 kHz| from a frequency of the dominating signal component of the received signal, and/or by no more than 10% of the frequency of the dominating signal component of the received signal, from such frequency. Furthermore, the operating- and measuring electronics is adapted to produce by means of the received signal, at least one measured value for the at least one parameter.

    Measuring System for Measuring at Least One Parameter of a Fluid
    8.
    发明申请
    Measuring System for Measuring at Least One Parameter of a Fluid 审中-公开

    公开(公告)号：US20180149505A1

    公开(公告)日：2018-05-31

    申请号：US15569162

    申请日：2016-05-09

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Peter Ploss ,  Stefan Rupitsch ,  Michael Bezdek ,  Thomas Frohlich ,  Beat Kissling

    IPC: G01F1/66

    Abstract: A measuring system, embodied as a clamp-on, ultrasonic, flow measuring device, comprises a tube, or a pipe, having a lumen surrounded by a tube, or pipe, wall, which tube or pipe is adapted to guide a volume portion of the fluid in its lumen; an ultrasonic transducer mounted on the tube, or pipe, on an outside of the tube, or pipe, wall facing away from the lumen, and acoustically coupled via the tube, or pipe, wall to fluid guided in the lumen, and adapted to convert a time varying electrical voltage into ultrasonic waves propagating through the tube, or pipe, wall and further through fluid guided in the lumen; an ultrasonic transducer mounted on the tube, or pipe, separated from the ultrasonic transducer on the outside of the tube, or pipe, wall, and acoustically coupled via the tube, or pipe, wall to fluid guided in the lumen, and adapted to receive ultrasonic waves propagating through fluid guided in the lumen, and further through the tube, or pipe, wall and to transduce such into an electrical voltage varying as a function of time; as well as an operating- and measuring electronics adapted to generate, a driver signal for the ultrasonic transducer. The driver signal has a time variable, electrical voltage, for effecting a received signal, of the ultrasonic transducer likewise having an electrical voltage, uB,II, varying as a function of time, in such a manner that both the driver signal, as well as also the received signal, each contain a plurality of spectral signal components, equally as well, in each case, a dominating spectral signal component having a maximum power spectral density, and that a frequency, of the dominating signal component of the driver signal, deviates by a magnitude of no more than |±100 kHz| from a frequency of the dominating signal component of the received signal, and/or by no more than 10% of the frequency of the dominating signal component of the received signal, from such frequency. Furthermore, the operating- and measuring electronics is adapted to produce by means of the received signal, at least one measured value for the at least one parameter.

    Ultrasonic Flow Meter
    9.
    发明申请
    Ultrasonic Flow Meter 有权
    超声波流量计

    公开(公告)号：US20160116316A1

    公开(公告)日：2016-04-28

    申请号：US14895391

    申请日：2014-05-19

    Applicant: ENDRESS+HAUSER FLOWTEC AG

    Inventor： Beat Kissling ,  Quirin Muller ,  Sascha Grunwald ,  Fabian Steiner ,  Wolfgang Brobeil

    IPC: G01F1/66

    CPC classification number: G01F1/66 ,  G01F1/662 ,  G01F1/667

    Abstract: An ultrasonic flow meter comprising: a measurement pipe, which has a measurement pipe wall, at least in some parts a basic shape having a rotationally symmetric or polygonal cross-section, and a straight measurement pipe axis; a transmitter for transmitting an acoustic signal on a first signal path; and a receiver for receiving the acoustic signal on the first signal path; The measurement pipe has a plurality of reflection surfaces, by which the acoustic signal on the first signal path is reflected multiple times, and wherein the reflection surfaces are integrally formed from the measurement pipe wall, the reflection surfaces for reflecting the acoustic signal being designed in such a way that one or more of the reflection surfaces at least partially protrude into the basic shape of the measurement pipe and one or more of the reflection surfaces project outward at least from the basic shape of the measurement pipe.

    Abstract translation: 一种超声波流量计，包括：测量管，其具有至少部分具有旋转对称或多边形横截面的基本形状的测量管壁和直的测量管轴; 用于在第一信号路径上发送声信号的发射机; 以及接收器，用于在第一信号路径上接收声信号; 测量管具有多个反射面，通过该反射面，第一信号路径上的声信号被多次反射，并且其中反射面从测量管壁一体形成，反射表面用于反射设计的声信号 使得一个或多个反射表面至少部分地突出到测量管的基本形状中，并且一个或多个反射表面至少从测量管的基本形状向外突出。

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