ULTRASCHALL-DURCHFLUSSMESSGERÄT
    5.
    发明公开

    公开(公告)号:EP3004812A1

    公开(公告)日:2016-04-13

    申请号:EP14725145.8

    申请日:2014-05-19

    IPC分类号: G01F1/66

    CPC分类号: G01F1/66 G01F1/662 G01F1/667

    摘要: The invention relates to an ultrasonic flow meter (1) comprising: a measurement pipe (2), which measurement pipe (2) has a measurement pipe wall (11), at least in some parts a basic shape having a rotationally symmetric or polygonal cross-section, and a straight measurement pipe axis (M); a transmitter (15) for transmitting an acoustic signal on a first signal path (8); and a receiver (9) for receiving the acoustic signal on the first signal path (8); wherein the measurement pipe (2) has a plurality of reflection surfaces (6.1–6.5), by which the acoustic signal on the first signal path (8) is reflected multiple times, and wherein the reflection surfaces (6.1–6.5) are integrally formed from the measurement pipe wall (11), the reflection surfaces (6.1–6.5) for reflecting the acoustic signal being designed in such a way that one or more of the reflection surfaces (6.1–6.5) at least partially protrude into the basic shape of the measurement pipe (2) and one or more of the reflection surfaces (6.1–6.5) project outward at least from the basic shape of the measurement pipe (2).

    摘要翻译: 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,并且其中反射表面从测量管壁一体形成,反射表面用于反射设计在 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。

    KOPPELELEMENT EINES ULTRASCHALLWANDLERS FÜR EIN ULTRASCHALL-DURCHFLUSSMESSGERÄT
    6.
    发明公开
    KOPPELELEMENT EINES ULTRASCHALLWANDLERS FÜR EIN ULTRASCHALL-DURCHFLUSSMESSGERÄT 审中-公开
    超声波换能器的用于超声流量计KOPPEL元

    公开(公告)号:EP2656017A1

    公开(公告)日:2013-10-30

    申请号:EP11788133.4

    申请日:2011-11-23

    IPC分类号: G01F1/66

    CPC分类号: G01F1/662 G01F1/667

    摘要: The invention relates to a coupling element of an ultrasonic transducer for an ultrasonic flow meter, suitable for mode conversion of an acoustic longitudinal wave between a coupling input surface and a coupling output surface of the coupling element by reflection at a first boundary of the coupling element to a prescribed medium, wherein the coupling element comprises a second boundary to a prescribed medium, wherein a first angle between the coupling input surface and the first boundary and a second angle between the first boundary and the coupling output surface are selected so that a portion of transverse waves is reflected at the first boundary to the coupling output surface, and wherein the first angle between the coupling input surface and the first boundary and a third angle between the first boundary and the second boundary are selected so that a portion of the longitudinal waves is reflected at the first boundary to the second boundary, and that a portion of the longitudinal waves reflected to the second boundary is reflected back into the coupling element at the second boundary, wherein the centroid of the second boundary is offset to a plane in the direction of the surface normals of the coupling output surface through the centroid of the coupling output surface, to which plane the surface normal of the coupling output surface is perpendicular and in which plane the centroid of the coupling output surface lies.

    VERFAHREN ZUR ERMITTLUNG EINES KOMPENSIERTEN DURCHFLUSSES UND/ODER EINER KOMPENSIERTEN STRÖMUNGSGESCHWINDIGKEIT, ULTRASCHALL-DURCHFLUSSMESSGERÄT UND COMPUTERPROGRAMMPRODUKT
    9.
    发明公开
    VERFAHREN ZUR ERMITTLUNG EINES KOMPENSIERTEN DURCHFLUSSES UND/ODER EINER KOMPENSIERTEN STRÖMUNGSGESCHWINDIGKEIT, ULTRASCHALL-DURCHFLUSSMESSGERÄT UND COMPUTERPROGRAMMPRODUKT 有权
    一种用于确定补偿的流量和/或补偿的流量,超声波流量计和计算机程序产品

    公开(公告)号:EP3008427A1

    公开(公告)日:2016-04-20

    申请号:EP14724755.5

    申请日:2014-05-19

    IPC分类号: G01F1/66 G01F25/00

    摘要: The invention relates to a method for ascertaining a compensated flow and/or a compensated flow speed. The compensation of a flow-related measurement error is carried out by means of an analyzing unit (11, 21) of a flow measuring device and/or a computer during a flow measurement using a two-path measurement of an ultrasonic flow measuring device, comprising an arrangement of at least two ultrasonic converter pairs (12-15, 22-25) on a pipe (5, 16, 26), said ultrasonic converters (12-14, 22-24) assuming a 180° two-path single-traverse or a 90° two-path double-traverse arrangement. The method is characterized by the following steps: a) feeding information relating to the flow-influencing pipe element (6a-6d) type into the analyzing unit (11, 21) and/or the computer; b) feeding information relating to the distance (x
    a -X
    d ) of the arrangement of the ultrasonic converter pair (1, 2, 12-15, 22-25) to the flow-influencing pipe element (6a-6d) into the analyzing unit (11, 21) and/or computer; c) compensating for a measurement error using a correction factor k
    D as a function of the information from steps a) and b); and d) ascertaining a flow corrected by the correction factor k
    D and/or a flow speed corrected by the correction factor k
    D . The invention also relates to an ultrasonic flow measuring device and a computer program product.

    ULTRASCHALL-DURCHFLUSS- UND PARTIKELMESSSYSTEM
    10.
    发明公开
    ULTRASCHALL-DURCHFLUSS- UND PARTIKELMESSSYSTEM 审中-公开
    超声流量和微粒测定器

    公开(公告)号:EP2494316A1

    公开(公告)日:2012-09-05

    申请号:EP10744576.9

    申请日:2010-08-17

    CPC分类号: G01F1/662

    摘要: The invention relates to an ultrasonic flow and particle measuring system (1), comprising a first ultrasonic transducer (2) and at least one further, second ultrasonic transducer (3), wherein the first ultrasonic transducer comprises at least one first ultrasonic transducer element (4) and at least one first coupling element (5), wherein acoustic signals can be emitted and received by the first ultrasonic transducer element (4) during operation via the first coupling element (5). The first and second ultrasonic transducers (2, 3) are arranged in a measuring tube (8) for determining the flow such that the acoustic signals propagate along at least one signal path (9) in the measuring tube (8) between the first and the second ultrasonic transducers (3), wherein at least the first coupling element (5) is designed as an acoustic lens. The ultrasonic flow and particle measuring system (1) comprises an evaluation unit, which is suited to analyze the amplitude of reflection signals of acoustic signals reflected by particles to the first ultrasonic transducer (2), wherein in a predetermined time interval a number of amplitudes of the reflection signals can be counted using the evaluation unit, which are greater than a predetermined threshold value. The invention further relates to a method for determining the flow of a measuring medium through a measuring tube (8) and for detecting particles in the measuring medium using an ultrasonic flow and particle measuring system (1) according to the invention.