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.

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.

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.

公开(公告)号：US09528866B2

公开(公告)日：2016-12-27

申请号：US14414813

申请日：2013-06-07

Applicant: Endress + Hauser Flowtec AG

Inventor： Achim Wiest ,  Sascha Grunwald ,  Oliver Brumberg ,  Thomas Frohlich ,  Oliver Berberig ,  Beat Kissling ,  Quirin Muller

IPC: G01F1/66

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

Abstract: An ultrasonic, flow measuring device, comprising a measuring tube having a straight measuring tube axis, a transmitter for sending an acoustic signal on a first signal path, a receiver for receiving the acoustic signal on the first signal path and a number of reflection surfaces, on which the acoustic signal is reflected at least once on the first signal path, wherein minimum separations of at least three subsections from the measuring tube axis lie in the range 0.4-0.6 r, wherein r is the inner radius of the measuring tube.

Abstract translation: 一种超声波流量测量装置，包括具有直的测量管轴的测量管，用于在第一信号路径上发送声学信号的发射器，用于在第一信号路径上接收声学信号的接收器和多个反射表面， 其中声信号在第一信号路径上反射至少一次，其中至少三个子部分与测量管轴的最小间隔在0.4-0.6r的范围内，其中r是测量管的内半径。

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：US20180149511A1

公开(公告)日：2018-05-31

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: G01F25/00 ,  G01F1/66 ,  G01N29/12

CPC classification number: G01F25/0007 ,  G01F1/662 ,  G01F1/667 ,  G01F15/024 ,  G01N29/12 ,  G01N2291/2634

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.

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.

公开(公告)号：US20150204704A1

公开(公告)日：2015-07-23

申请号：US14414813

申请日：2013-06-07

Applicant: Endress + Hauser Flowtec AG

Inventor： Achim Wiest ,  Sascha Grunwald ,  Oliver Brumberg ,  Thomas Frohlich ,  Oliver Berberig ,  Beat Kissling ,  Quirin Muller

IPC: G01F1/66

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

Abstract: An ultrasonic, flow measuring device, comprising a measuring tube, a transmitter for sending an acoustic signal, a receiver for receiving the acoustic signal and a number of reflection surfaces, on which the acoustic signal is reflected. A first signal path is composed of straight subsections, wherein a) minimum separations of at least three subsections from the measuring tube axis lie in the range 0.4-0.6 r, wherein r is the inner radius of the measuring tube; b) a first subsection, which defines a first axially parallel plane, has a directly corresponding second subsection, which defines a second axially parallel plane, which two planes extend through a reflection surface and the normal vectors enclose an angle of less than 10°, c) a third subsection, which defines a third axially parallel plane, has a directly corresponding fourth subsection, which defines a fourth axially parallel plane, wherein the two planes extend through a second reflection surface and the normal vectors enclose an angle of less than 10°; and d) the signal path describes in axial plan view a polygon, whose lateral points of intersection lie within, on or outside of the measuring tube.

Abstract translation: 一种超声波流量测量装置，包括测量管，用于发送声信号的发射器，用于接收声信号的接收器和反射表面的多个反射面。 第一信号路径由直线部分组成，其中a）至少三个子部分与测量管轴的最小间隔在0.4-0.6r的范围内，其中r是测量管的内半径; b）限定第一轴向平行平面的第一部分具有直接对应的第二子部分，其限定第二轴向平行平面，该两个平面延伸穿过反射表面，并且法向矢量包围小于10°的角度， c）限定第三轴向平行平面的第三子部分具有直接对应的第四子部分，其限定第四轴向平行平面，其中两个平面延伸穿过第二反射表面，并且法向矢量包围小于10°的角度 °; 和d）信号路径在轴向平面图中描述了一个多边形，其多边形的横向点位于测量管的内部或外部。