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公开(公告)号：EP3008427B1
公开(公告)日：2019-11-27
申请号：EP14724755.5
申请日：2014-05-19
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公开(公告)号：EP2872857A1
公开(公告)日：2015-05-20
申请号：EP13727888.3
申请日：2013-06-07
发明人： WIEST, Achim , GRUNWALD, Sascha , BRUMBERG, Oliver , FRÖHLICH, Thomas , BERBERIG, Oliver , KISSLING, Beat , MÜLLER, Quirin
IPC分类号： G01F1/66
摘要： The invention relates to an ultrasound flow rate meter, which comprises a measuring tube with a straight measuring tube axis, a transmitter for transmitting an acoustic signal onto a first signal path, a receiver for receiving the acoustic signal on the first signal path and a plurality of reflection surfaces on each of which the acoustic signal on the first signal path is reflected at least once. This first signal path is composed of straight subsections wherein: a) the minimum distances of at least three subsections from the measuring tube axis are 0.4-0.6 r, r being the internal radius of the measuring tube; b) a first subsection that defines a first plane parallel to the axis has a directly corresponding second subsection that defines a second plane parallel to the axis, both planes running through a reflection surface and the normal vectors enclosing an angle of less than 10°; c) a third subsection that defines a third plane parallel to the axis has a directly corresponding fourth subsection that defines a fourth plane parallel to the axis, both planes running through a second reflection surface and the normal vectors enclosing an angle of less than 10°; and d) the progression of the signal path describes a polygon in an axial top view, the vertices of which lie inside, on or outside the measuring tube.
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公开(公告)号：EP2591347A1
公开(公告)日：2013-05-15
申请号：EP11727163.5
申请日：2011-06-20
CPC分类号： G01N29/44 , G01N15/02 , G01N15/06 , G01N29/02 , G01N29/221 , G01N29/2456 , G01N29/348 , G01N29/48 , G01N2291/02408 , G01N2291/02416
摘要： The invention relates to an ultrasonic particle measuring system (1), comprising an ultrasonic transducer (2), which has at least one ultrasonic transducer element (4) and at least one coupling element (5), wherein during operation acoustic signals can be emitted and received by the ultrasonic transducer element (4) via the coupling element (5). The coupling element (5) is designed as an acoustic lens, and the ultrasonic particle measuring system (1) comprises an evaluating unit suitable for analysing the amplitude of reflection signals of the acoustic signals reflected by particles to the ultrasonic transducer (2), wherein the evaluation unit is used to count, in a predetermined time interval, a number of amplitudes of the reflection signals that are greater than a predetermined threshold value.
摘要翻译： 一种超声波粒子测量系统，其具有具有至少一个超声波换能器元件和至少一个耦合元件的超声换能器，其中，在操作期间，声信号可由超声换能器元件经由耦合元件传输和接收，其中耦合元件被实施 作为声透镜，超声波粒子测量系统具有适于对从粒子向超声波换能器反射的声信号的反射信号进行振幅分析的评价部，其中，在所述评价部中，将所述反射信号的振幅设定为规定时间 间隔是可数的，其大于预定阈值。
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公开(公告)号：EP2449552A1
公开(公告)日：2012-05-09
申请号：EP10725067.2
申请日：2010-05-21
发明人： MÜLLER, Quirin , KISSLING, Beat
CPC分类号： G10K9/18 , G01F1/662 , G10K9/122 , H01L41/047 , H01L41/1132
摘要： The invention relates to an ultrasonic sensor for an ultrasonic flow meter, having at least one electromechanical converter element and one electrode stamp, which electrically contacts a first surface of the electromechanical converter element, wherein no more than 75% of the first surface area of the electromechanical converter element is electrically contacted.
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公开(公告)号：EP3230696B1
公开(公告)日：2020-02-05
申请号：EP15794854.8
申请日：2015-11-03
发明人： WIEST, Achim , KISSLING, Beat , MÜLLER, Quirin , GRUNWALD, Sascha
IPC分类号： G01F1/66
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16.发明公开VERFAHREN ZUR ERMITTLUNG EINER ROHRWANDRESONANZFREQUENZ, SOWIE CLAMP-ON-ULTRASCHALL-DURCHFLUSSMESSGERÄT 审中-公开确定管壁共振场的方法和钳式超声波流量计量装置
公开(公告)号：EP3298359A1
公开(公告)日：2018-03-28
申请号：EP16718683.2
申请日：2016-04-26
CPC分类号： G01F25/0007 , G01F1/662 , G01F1/667 , G01F15/024 , G01N29/12 , G01N2291/2634
摘要： A method for determining at least one pipe wall resonant frequency of a pipeline in the region of a measuring point by means of a field device from process measuring technology with at least one first ultrasonic transducer which is secured to the pipeline at the measuring point, comprising the following steps of: I) providing a first transfer function U
wandler (f) of at least the first ultrasonic transducer or of a plurality of ultrasonic transducers in the region of the measuring point; II) determining a receiving spectrum U
rec (f) from a reception signal u
rec (t) after an ultrasonic signal has been emitted; III) determining a second transfer function U
Messstelle (f) from the first transfer function U
wandler (f) of the first ultrasonic transducer or of the plurality of ultrasonic transducers and the receiving spectrum U
rec (f), wherein the second transfer function U
Messstelle (f) is characteristic of the measuring point; and IV) determining the at least one pipe wall resonant frequency f
res , in particular a plurality of resonant frequencies, in the region of the measuring point by evaluating the second transfer function U
Messstelle (f) from step III, and a clamp-on ultrasonic flowmeter, a method for determining a flow rate, a method for determining the change in the measuring point and an identification device.-
公开(公告)号：EP3298354A1
公开(公告)日：2018-03-28
申请号：EP16720865.1
申请日：2016-05-09
IPC分类号： G01F1/66
摘要： The invention relates to a measurement system, particularly a measurement system designed as a clamp-on ultrasonic flow meter, comprising a tube (10) with a lumen (10') enclosed by a tube wall (10a), said tube being configured to conduct, in its lumen, a partial volume of the fluid or to have fluid flowing through it; an ultrasonic transducer (A) which is mounted on the tube on an outer side of the tube wall that faces away from said tube lumen, and is acoustically coupled via the tube wall to fluid being conducted in the tube lumen, said transducer (A) being configured to convert a electrical voltage that changes over time into ultrasonic waves (W
AB,I ) that are propagated through the tube wall and further through fluid being conducted in the tube lumen; an ultrasonic transducer (B) which is mounted on the tube at a distance from the ultrasonic transducer (A), on the outer side of the tube wall, and is acoustically coupled via said tube wall to fluid being conducted in the tube lumen, said transducer (B) being configured to receive ultrasonic waves (W
AB,II ) propagated through fluid conducted in the tube lumen and further through the tube wall, and to convert this into an electrical voltage that changes over time; as well as an electronic operating-and-measuring system (2) that is electrically connected to both the ultrasonic transducer (A) and to the ultrasonic transducer (B). Said electronic operating-and-measuring system is configured, so as to achieve an ultrasonic transducer (B) receiving signal y
B (t) having an electrical voltage u
B,II that changes over time, to at least intermittently generate a driver signal x
A (t), having an electrical voltage u
A,i that changes over time, for said ultrasonic transducer (A), such that both said driver signal x
A (t) and said receiving signal y
B (t) contain a plurality of spectral signal components (x
Ai , y
Bi ) as well as a dominant spectral signal component (x
A , y
B ) specifically having a maximum power spectral density (S
XXA ,
MAX ; S
yyB ,
MAX ), and that a frequency f
xa of the dominant signal component (x
A ) of the driver signal x
A (t) deviates by an amount of no more than |+100 kHz| from a frequency f
yB of the dominant signal component (y
B ) of the receiving signal y
B (t) and/or by no more than 10% of the frequency f
yB of the dominant signal component (y
B ) of the receiving signal y
B (t) of said frequency f
yB . Moreover, the electronic operating-and-measuring system is configured to produce at least one measurement value (X
M ) for the at least one parameter, using said receiving signal y
B (t).-
公开(公告)号：EP3230696A1
公开(公告)日：2017-10-18
申请号：EP15794854.8
申请日：2015-11-03
发明人： WIEST, Achim , KISSLING, Beat , MÜLLER, Quirin , GRUNWALD, Sascha
IPC分类号： G01F1/66
摘要： The invention relates to a measuring pipe, in particular for an ultrasonic flow meter, said measuring pipe (2) having a measuring pipe wall (11) and a basic shape with a rotationally symmetrical or polygonal cross-section at least in some regions and a straight measuring pipe axis (M). The measuring pipe (2) has at least one functional surface for positioning a reflector on which an acoustic signal on a signal path (8) is reflected, and the functional surface is integrally formed from the measuring pipe wall. The invention is characterized in that the functional surface defines a circular segment in at least one sectional view, said circular segment being used to support a reflector, or the functional surface has stops with distal ends which define a circular segment in at least one sectional view, said circular segment being used to support a reflector. The invention also relates to an ultrasonic flow meter and a method for producing a measuring pipe.
摘要翻译： 本发明涉及一种测量管，尤其是用于超声波流量计的测量管，所述测量管（2）具有测量管壁（11）和至少在一些区域中具有旋转对称或多边形横截面的基本形状， 直测量管轴（M）。 测量管（2）具有至少一个用于定位反射器的功能表面，信号路径（8）上的声学信号被反射到该反射器上，并且功能表面与测量管壁整体形成。 本发明的特征在于，所述功能表面在至少一个截面图中限定了圆形段，所述圆形段用于支撑反射器，或者所述功能表面具有止挡件，所述远端在至少一个截面图中限定了圆形段 ，所述圆形段用于支撑反射器。 本发明还涉及一种超声波流量计和一种用于生产测量管的方法。
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