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。

公开(公告)号：US20230228603A1

公开(公告)日：2023-07-20

申请号：US18002376

申请日：2021-06-16

Applicant: Endress+Hauser Flowtec AG

Inventor： Oliver Berberig ,  Thomas Fröhlich ,  Beat Kissling ,  Quirin Müller ,  Klaus Bussinger

IPC: G01F1/667 ,  G01F1/66 ,  G01F15/18 ,  G01P5/24

CPC classification number: G01F1/667 ,  G01F1/662 ,  G01F15/18 ,  G01P5/241

Abstract: A clamp-on ultrasonic flowmeter includes pairs of ultrasonic transducers arranged on an exterior of a pipeline, and an electronic measuring/operating circuit for operating the transducers and for registering and evaluating measurement signals and for providing measured values of volume flow or flow velocity. The pairs are implemented as 1-traverse or 2-traverse pairs. One-traverse pairs are arranged on opposite sides of the pipeline, and 2-traverse pairs are arranged on a same side of the pipeline. At least three pairs are arranged on the pipeline and are distributed peripherally. Adjoining pairs of a number of pairs have an inner angle down to a minimum inner angle (MIA) between one another measured about a pipeline axis, which minimum inner angle obeys the following relationship:


MIA=360°/(T*N*F(T,N))

with T as number of traverses and F(T,N)=0.38+0.62*T+(0.048−0.01*T{circumflex over ( )}2)*(N−2){circumflex over ( )}2.

公开(公告)号：US09970808B2

公开(公告)日：2018-05-15

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.