WO2010069869A1 - Tube de mesure pour un système de mesure de débit par ultrasons - Google Patents

Tube de mesure pour un système de mesure de débit par ultrasons Download PDF

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Publication number
WO2010069869A1
WO2010069869A1 PCT/EP2009/066911 EP2009066911W WO2010069869A1 WO 2010069869 A1 WO2010069869 A1 WO 2010069869A1 EP 2009066911 W EP2009066911 W EP 2009066911W WO 2010069869 A1 WO2010069869 A1 WO 2010069869A1
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WO
WIPO (PCT)
Prior art keywords
measuring tube
measuring
inlet
tube
outlet
Prior art date
Application number
PCT/EP2009/066911
Other languages
German (de)
English (en)
Inventor
Andreas Berger
Achim Wiest
Original Assignee
Endress+Hauser Flowtec Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Endress+Hauser Flowtec Ag filed Critical Endress+Hauser Flowtec Ag
Publication of WO2010069869A1 publication Critical patent/WO2010069869A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details

Definitions

  • the present invention relates to a measuring tube of an ultrasonic flow measuring system, which measuring tube has a different cross section in the measuring range than the measuring tube inlet and / or measuring tube outlet.
  • Ultrasonic flowmeters are widely used in process and automation technology. They allow in a simple way to determine the volume flow and / or mass flow in a pipeline.
  • the known ultrasonic flowmeters often work after the Doppieroder after the transit time difference principle.
  • ultrasonic pulses are sent at a certain angle to the pipe axis both with and against the flow. From the transit time difference, the flow rate and thus with known diameter of the pipe section of the Voiumen presspound can be determined.
  • Doppler P ⁇ nzip ultrasonic waves are coupled with a certain frequency in the liquid and evaluated by the liquid reflected ultrasonic waves. From the frequency shift between the coupled and reflected waves can also determine the flow rate of the liquid.
  • the ultrasonic waves are generated or received with the help of so-called ultrasonic transducers.
  • ultrasonic transducers on the pipe wall of the relevant Pipe section firmly attached.
  • clamp-on ultrasonic flowmeter systems have also been available. In these systems, the ultrasonic transducers are pressed against the pipe wall only with a tension lock. Such systems are for. Example, from EP 686 255 B1, US-A 44 84 478 or US-A 45 98 593 known.
  • a big advantage of clamp-on ultrasonic flow measuring systems is that they do not touch the measuring medium and are mounted on an existing pipeline.
  • the UitraschaNwandler usually consist of a piezoelectric
  • the piezoelectric element also called Piezo for short, and called a coupling layer, also coupling wedge or rare Vorlauf stresses.
  • the Koppei Mrs is usually made of plastic
  • the piezoelectric element is in industrial process measurement usually a piezoceramic.
  • the ultrasound is sometimes generated and passed over the coupling layer to the pipe wall and passed from there into the liquid. Since the speeds of sound in liquids and plastics are different, the ultrasonic waves are refracted during the transition from one medium to another.
  • the refraction angle is determined to a first approximation according to Snell 's Law. The angle of refraction is thus dependent on the ratio of the propagation velocities in the media.
  • the adaptation layer assumes the function of transmission of the
  • EP 1 826 537 A2 shows a measuring tube with a rectangular tube cross-section.
  • Two Uitraschaiiwandler are mounted on two opposing parallel surfaces of the measuring tube or they are spaced from each other on one of the two parallel surfaces, said Ultraschallailwandler see through approximately the entire pipe cross-section.
  • the measuring tube has a measuring tube inlet and a M essroh outlet, which each allow a cross-sectional change of round cross-section of the pipe surrounding the measuring tube to a rectangular cross-section of the measuring tube.
  • an additional component is provided, which swirls the flow.
  • DE 102 49 542 A1 discloses a measuring tube for an ultrasonic flow measuring system with two functional surfaces, on each of which a Uitraschaiiwandler is attached.
  • the functional surfaces are an integral part of the measuring tube.
  • the functional surfaces are mounted parallel to each other on opposite sides of the measuring tube.
  • both functional surfaces had approximately the same hints! to an imaginary solder on the opposite surface of the measuring tube, which opposite surface reflects the ultrasonic signal between the ultrasonic transducers.
  • Another measuring tube with a rectangular cross-section is shown in EP 1 130 366 A2.
  • the Uitraschaiiwandler is equal to the inner width of the measuring tube, whereby the entire Meßrohrquerites can be Oberschallt.
  • the cross section of the measuring tube changes from a square to a rectangular cross section, wherein the height of the rectangle may be higher than the height of the square and the width of the rectangle is substantially narrower than the width of the square.
  • Rectangular measuring tubes have a generally strongly slowed flow in the corners and corners of the measuring tubes. Deposits accumulate there frequently.
  • the object of the invention is to provide a measuring tube for an ultrasonic flow measuring system, which enables a highly accurate measurement of the flow and at the same time is very inexpensive to produce.
  • the problem is solved by a measuring tube of an ultrasonic flow measuring system, soft measuring tube an approximately circular
  • the measuring tube has a Messrohrmättelteil between the Messrohreiniiller and the measuring tube outlet, which Meßrohrstoffteil has a cross section whose width is wesentiich smaller than the diameter of the measuring tube inlet and / or the diameter of the measuring tube and whose height is substantially greater as the diameter of the measuring tube inlet and / or the Meßrohrausiillers, wherein the measuring tube has a first functional surface and at least a second functional surface to which functional surfaces in each case at least one Ultraschallwandier acoustically Koppeibar and which Funktäonff kauen each have an approximately equal Winket ⁇ to the measuring tube axis.
  • the dimensions are thus determined between the inner surfaces of the measuring tube.
  • the width of the measuring tube refers to the width at the narrowest point of the measuring tube.
  • the height refers to the height at the highest point of the measuring tube. If the measuring tube has an axis in the middle part of the measuring tube, the height and width are perpendicular to the axis of the measuring tube central part, as in the diameter of the measuring tube inlet and measuring tube outlet.
  • the measuring tube axis itself is to be considered without an existing axis in the measuring tube middle part as a connecting line between the center point of the measuring tube inlet and the center of the measuring tube outlet.
  • the Meßrohrstoffschtei! an axis which lies in said connecting line between the center of the measuring tube inlet and the center of the measuring tube outlet.
  • the functional surfaces are preferably located on the outside of the measuring tube wall. They are designed to accommodate Ultraschallwandiem suitable. If an ultrasound signal! Coupled via the functional surface into the measuring tube wall, the measuring tube wall conducts the ultrasound signal down to its inside. There it is then coupled into the measuring medium.
  • the first functional surface and the second functional surface are plane-parallel to one another.
  • the first and / or second functional surface is at least as wide as the measuring tube at its narrowest point.
  • the measuring tube is seen through in its Meßrohrstoffteil with ultrasonic signals.
  • the entire width of the middle part of the measuring tube is particularly advantageously penetrated, i. the wavefront width of the emitted or propagating in the measuring medium ultrasonic signal corresponds at least to the width of the measuring tube at the narrowest Swel.
  • the measuring tube has no corners and / or edges.
  • the radii of the measuring tube in various configurations, depending on the size of the measuring tube, greater than 0.2 mm, in particular greater than 0.5 mm, in particular greater than 1 mm, in particular greater than 2mm.
  • the radii of one embodiment of the measuring tube are preferably smaller than 5 mm.
  • a variant of the measuring tube accordingly has no corners.
  • a refined measuring tube is additionally dispensed edges. A constant change in the cross section of the measuring tube from the measuring tube inlet to the measuring tube middle part is the result.
  • the measuring tube is produced from a metallic and substantially straight tube with an approximately circular cross-section by forming.
  • metallic tubes of this kind can also be produced by primary shaping methods such as casting.
  • primary shaping methods such as casting.
  • forming methods that plastically deform the previously substantially straight measuring tube such as hydroforming or deep drawing, are preferred.
  • the measuring tube can be produced from a polymer by primary shaping.
  • polymers not only polymers, but especially fiber reinforced plastics or composites are preferred.
  • the measuring tube is integrally formed.
  • the measuring tube does not necessarily have to be produced by prototyping, ie to be monolithic.
  • a measuring tube which is first produced by bending a flat sheet with subsequent longitudinal seam welding and then undergoes a forming process, is to be regarded as one piece.
  • one of two half shells which is e.g. have been given their final shape by deep drawing, to consider welded measuring tube as non-integral.
  • measuring tube inlet and the measuring tube outlet have substantially the same cross-sectional area.
  • a further embodiment provides for the measuring tube middle part and the measuring tube inlet and / or the measuring tube outlet the approximately same cross-sectional area.
  • a further advantageous development of the measuring tube according to the invention provides that the circumference of the measuring tube central part is approximately equal to the circumference of the measuring tube inlet and / or the measuring tube outlet.
  • the measuring tube from
  • Measuring tube inlet designed essentially symmetrically up to the measuring tube outlet.
  • the structure of the measuring tube accordingly has at least one plane of symmetry, an axis of symmetry and / or a point of symmetry.
  • a further embodiment of the invention has asymmetrical inlet and / or outlet regions.
  • Inlet and outlet regions are the regions of the measuring tube between the measuring tube inlet and the measuring tube middle part or measuring tube middle part and measuring tube outlet.
  • the measuring tube in the measuring tube middle part has two substantially plane-parallel side surfaces, which in turn define the width of the measuring tube.
  • the side surfaces of the measuring tube are preferably at the narrowest point of the measuring tube, ie at the location of the measuring tube with the smallest width, pianparallel.
  • the cross-section of the measuring tube central part essentially has the shape of a double lobe.
  • a double club has the form of two, with their thin ends on each other standing clubs. It takes the form of an hourglass.
  • Double lobes are also known from quantum mechanics. For example, the p-orbital model forms a double lobe.
  • the inside of the measuring tube has, at least in some areas, essentially flow-parallel grooves in the measuring tube wall.
  • the grooves offer the positive effect of the flow guidance in the measuring tube, on the other hand they serve for the stability of the measuring tube in order to reduce deformations. If a measuring tube is e.g. produced by a forming process, the grooves can not only run on the inside, but also on the outside of the measuring tube.
  • the measuring tube wall is thus corrugated.
  • Another variant represent one-sided and / or double-sided ribs in the measuring tube wall. Ridges earth rather understood as recesses, ribs as protuberances. In a described measuring tube with corrugated measuring tube wall grooves are correspondingly synonymous with ribs.
  • the measuring tube has at least one cup-shaped indentation, wherein the bottom surface of the cup-shaped indentation of the first functional surface and / or the second
  • the cup-shaped indentations are interpretable for receiving at least one ultrasonic converter.
  • the sensor housing is thus already integrated into the measuring tube, where it is necessary to distinguish between eän Publishedigem measuring tube with cup-shaped recess and glued or eg Laser-welded potty for receiving the Ultraschallaüwandler. If two cup-shaped indentations exist, the bottom surface of the first indentation is formed by the first functional surface and the bottom surface of the second indentation by the second functional surface.
  • the cup-shaped indentation of a sound-absorbing sealing compound is closed and / or the cup-shaped recess is connected via sound-absorbing baffles with the measuring tube in combination.
  • the measuring tube is preferably integrally formed with the cup-shaped indentation.
  • the measuring tube wall thus has sound-damping baffles even in the area of the cup-shaped indentation.
  • the sound-absorbing sealing compound is advantageously introduced into the pot-shaped indentation after insertion of the Uitraschallwandlers and preferably with the measuring tube formschiüssig, so that it is not an integral part of the measuring tube, or cohesively connected, e.g. by gluing.
  • the sound-absorbing sealing compound advantageously has means for cable feedthrough.
  • a measuring system for determining and / or monitoring the flow of a measuring medium through a measuring tube which ultrasonic flow measuring system comprises at least one ultrasonic transducer and at least one control / evaluation, which control / evaluation unit based on Measuring signals or based on measurement data, which are derived from the measurement signals, the volume and / or mass flow of the measuring medium flowing in the measuring tube determined, the ultrasonic transducer has at least one eiektromechanisches transducer element which transmits and / or receives ultrasonic signals, wherein the measuring tube an approximately circular measuring tube inlet and an approximately circular measuring tube outlet, wherein the measuring tube has a Meßrohrhreteil between the Messrohreiniauf and the measuring tube outlet, which
  • Measuring tube middle part has a cross section whose width is substantially smaller than the diameter of the measuring tube inlet and / or the measuring tube and whose height is substantially greater than the diameter of the measuring tube inlet and / or the measuring tube, wherein the measuring tube has a first functional surface and at least a second functional surface has, on softjansfiamba each at least one Ultraschallwandier is acoustically coupled and which functional surfaces each have an approximately equal angle ⁇ to the measuring tube axis.
  • FIG. 1 shows a measuring tube according to the invention with two cup-shaped recesses in longitudinal section
  • FIG. 2 shows a measuring tube according to the invention with a double-lobe-shaped measuring tube
  • FIG. 3 shows a measuring tube according to the invention with corrugated measuring tube side surfaces and four ultrasonic transducers in a perspective illustration.
  • an inventive measuring tube 3 is shown with two cup-shaped indentations 23 in longitudinal section.
  • the measuring tube 3 has a measuring tube inlet 7 and a measuring tube outlet 8 with approximately identical cross sections and a Meßrohrstoffteäl 9 between the measuring tube inlet 7 and measuring tube outlet 8.
  • the connecting line between the center of the approximately circular measuring tube inlet 7 and the approximately circular measuring tube outlet 8 is at the same time the measuring tube 12.
  • Das although the measuring tube 3 is not symmetrical with respect to its measuring tube axis 12, it is point-symmetrical with respect to the center of gravity of the cross section 15 of the measuring tube central part 9 which lies on the measuring tube axis 12.
  • the height 17 of the Meßrohrstoffteils 9 is substantially larger than the diameter 13, 14 of the measuring tube inlet 7 and the measuring tube outlet 8. Also, the width of the Meßrohrstoffteils 9 is substantially smaller than the diameter 13 of the measuring tube inlet 7 and the diameter 14 of the measuring tube outlet 8, but what naturally not shown in this longitudinal section.
  • the measuring tube 3 with the cup-shaped indentations 23 and the sound-damping baffles 26 in one piece by forming a previously straight pipe, for example by means of hydroforming can be produced.
  • the measuring tube 3 has no sharp corners and edges. All corner-like and edge-like places are rounded or have radii.
  • an electromechanical transducer element 2 is placed in each case a cup-shaped recess 23. It rests on the respective bottom surface 24 of the cup-shaped recess 23 and is connected thereto.
  • the bottom surfaces 24 of the cup-shaped recesses 23 serve as functional surfaces 10, 11, with which the electromechanical transducer elements 5 are acoustically coupled.
  • the bottom surfaces 24 of the cup-shaped recesses 23 and the functional surfaces 10 and 11 are at an angle ⁇ on the measuring tube axis 12. In this embodiment of the invention, the functional surfaces 10 and 11 are plane-parallel to each other.
  • the bottom surfaces 24 of the cup-shaped recesses 23 have an approximately circular cross-section.
  • the circular walls of the cup-shaped indentations 23 are substantially perpendicular thereto.
  • the cup-shaped indentations 23 of the measuring tube 3 are connected in one piece to the measuring tube wall 21 via the sound-absorbing baffles 26, i. the sound-absorbing baffles 26 and the cup-shaped indentations 23 are part of the measuring tube wall 21.
  • the sound-absorbing baffles 26 may be e.g. take the form of a bellows or diaphragm or bellows or, as shown here, with circular, concentrically arranged beads or waves.
  • an ultrasonic transducer 2 has a sound-absorbing sealing compound 25 in the cup-shaped recess 23, which closes the cup-shaped indentation 23 to the outside.
  • Fig. 2 discloses an inventive measuring tube 3 with an approximately circular measuring tube inlet 7 and an approximately circular Meßrohrausiiller 8 and a Meßrohrstoffteil 9 between the measuring tube inlet 7 and the Messrohrausiauf 8.
  • the Messrohrmitteitei! 9 has a cross-section 15 in the form of a double lobe whose width is substantially smaller than the diameter 13 of the measuring tube inlet 7 and the diameter of the measuring tube outlet 8 and whose height is substantially greater than the diameter 13 of the measuring tube inlet 7 and the measuring tube outlet 8.
  • Das shown measuring tube has a total of four functional surfaces 10, 11, 27, 28, to which at least one Uitraschailwandler is acoustically coupled and which functional surfaces 10, 11, 27, 28 each have an approximately equal angle to the measuring tube axis, not shown, wherein the functional surfaces 10 and 11 and the functional surfaces 27 and 28 are in pairs planparaliel each other.
  • the measuring tube 3 also has two substantially plane-parallel side surfaces 18, which in turn define the width of the measuring tube 3. Due to the selected representation of the measuring tube 3, unfortunately, only one of the two side surfaces 18 can be seen. Furthermore, neither the width nor the height of the measuring tube 3 can be seen, since they exist within the measuring tube 3 between its inner sides and here the measuring tube is shown in perspective from the outside. It can also only be guessed that the measuring tube inlet 7 and the measuring tube outlet 8 have the substantially same cross-sectional area. However, the symmetrical structure of the measuring tube 3 is very clear.
  • the measuring tube central part 9 of the measuring tube 3 in the exemplary embodiment is approximately equal to the circumference of the measuring tube inlet 7 and the circumference of the measuring tube outlet 8.
  • the internal cross sections are also used.
  • the cross section 15 of the Meßrohrstoffteils 9 has approximately the same circumference as the diameter 13 of the measuring tube inlet 7 spanned cross-section of the measuring tube inlet.
  • the measuring tube 3 is preferably made of a fiber-reinforced plastic, that is produced in a prototype method. 3 shows an ultrasound flow measuring system 1 with a measuring tube 3 with waved measuring tube side surfaces 18 and four ultrasonic walling 2.
  • the lateral measuring tube walls 21, which form the side surfaces 18 of the measuring tube 3, have grooves 22 both on the inside 19 and on the Outside 20 of the measuring tube 3 on.
  • On the side facing the measuring medium 4 side surface 18 of the measuring tube 3 thereby extend substantially in the flow direction of the measuring medium 4 in the measuring tube 3.
  • the corrugated side surfaces 18 and measuring tube walls 21 give the measuring tube 3 a higher mechanical Stability
  • the four opposing ultrasonic transducers 2 are placed on the measuring tube 3 from the outside, that is to say on the outer side 20 of the measuring tube 3. However, it is not a clamp-on measuring system, since the ultrasonic transducers 2 are not mounted on an existing pipeline, but on a specially designed measuring tube 3.
  • the ultrasonic transducers 2 are connected to a total of four functional surfaces 10, 11, 27, 28 of the measuring tube 3 in combination. In this case, close all four functional surfaces 10, 11, 27, 28 approximately the same angle ⁇ to the measuring tube axis.
  • the functional surfaces 10 and 11 and the functional surfaces 27 and 28 are pairwise planparaüel.
  • the diameters 13, 14 and thus the cross-sectional areas of the approximately circular measuring tube inlet 7 and the approximately circular measuring tube outlet 8 are essentially the same size.
  • the width 16 of the measuring tube middle part 9 at the narrowest point of the measuring tube central part 9 is smaller compared to the diameters 13, 14 of the measuring tube inlet 7 and the measuring tube outlet 8.
  • the height 17 of the measuring tube 3 at the highest part of the Meßrohrstoffteils 9 is greater than the said diameter 13, 14th
  • this measuring tube 3 with the grooves 22 in the measuring tube 21 has no
  • Measuring tube wall 22 grooves in the measuring tube wall

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention porte sur un tube de mesure (3) d'un système (1) de mesure de débit par ultrasons, lequel tube de mesure (3) comprend un orifice d'entrée (7) de tube de mesure, approximativement circulaire, et un orifice de sortie (8) du tube de mesure, approximativement circulaire, le tube de mesure (3) comportant une partie centrale (9) du tube de mesure entre l'orifice d'entrée (7) du tube de mesure et l'orifice de sortie (8) du tube de mesure, laquelle partie centrale (9) du tube de mesure présente une section transversale (15) dont la largeur (16) est considérablement plus petite que le diamètre (13) de l'orifice d'entrée (7) du tube de mesure et/ou que le diamètre (14) de l'orifice de sortie (8) du tube de mesure et dont la hauteur (17) est considérablement plus grande que le diamètre (13) de l'orifice d'entrée (7) du tube de mesure et/ou de l'orifice de sortie (8) du tube de mesure, le tube de mesure (3) comprenant une première surface fonctionnelle (10) et au moins une deuxième surface fonctionnelle (11), un convertisseur d'ultrasons (2) pouvant être couplé d'une manière acoustique à chacune des surfaces fonctionnelles (10, 11), chacune des surfaces fonctionnelles (10, 11) présentant, par rapport à l'axe (12) du tube de mesure, un angle α approximativement identique.
PCT/EP2009/066911 2008-12-19 2009-12-11 Tube de mesure pour un système de mesure de débit par ultrasons WO2010069869A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008055030A DE102008055030A1 (de) 2008-12-19 2008-12-19 Messrohr eines Ultraschall-Durchfluss-Messsystems
DE102008055030.2 2008-12-19

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Publication Number Publication Date
WO2010069869A1 true WO2010069869A1 (fr) 2010-06-24

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WO (1) WO2010069869A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014016315A1 (fr) * 2012-07-24 2014-01-30 Titan Enterprises Limited Débitmètre acoustique
DE102013005810A1 (de) * 2013-04-05 2014-10-09 Hydrometer Gmbh Verfahren zum Betrieb einer Ultraschallmessanordnung sowie Ultraschallmessanordnung
US8904861B2 (en) 2009-11-19 2014-12-09 Endress + Hauser Flowtec Ag Measuring device
WO2015150801A1 (fr) * 2014-03-31 2015-10-08 M-Flow Technologies Ltd Capteur de fluide
WO2016102168A1 (fr) * 2014-12-22 2016-06-30 Endress+Hauser Flowtec Ag Débitmètre électromagnétique
US9689727B2 (en) 2013-06-07 2017-06-27 Endress + Hauser Flowtec Ag Ultrasonic flow meter
WO2019030229A1 (fr) * 2017-08-08 2019-02-14 Gwf Messsysteme Ag Débitmètre et canal de mesure
US10634531B2 (en) 2014-12-09 2020-04-28 Endress + Hauser Flowtec Ag Ultrasonic, flow measuring device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013218827A1 (de) * 2012-09-22 2014-03-27 Ksb Aktiengesellschaft Strangregulierarmatur
DE102013216948B4 (de) * 2013-08-26 2015-12-03 Siemens Aktiengesellschaft Vorrichtung zur Druck- und Differenzdruckmessung in Staubförderleitungen
DE102013114475B4 (de) 2013-12-19 2021-04-08 Sick Ag Ultraschallmessvorrichtung und Verfahren zum Bestimmen der Strömungsgeschwindigkeit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335394A1 (de) * 1993-10-16 1995-04-20 Kernforschungsz Karlsruhe Ultraschalldurchflußmesser
EP1130366A2 (fr) * 1999-12-21 2001-09-05 Iskraemeco, Merjenje in Upravljanje Energije, D.D. Conduit de mesure pour un appareil ultrasonique de mesure de débit
US6298735B1 (en) * 1999-04-23 2001-10-09 Agilent Technologies, Inc. Pneumotachometer having annular ring transducers
DE10249542A1 (de) * 2002-10-23 2004-05-06 Endress + Hauser Flowtec Ag, Reinach Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massenstroms eines Mediums
DE102005046858B3 (de) * 2005-09-29 2007-01-18 Miele & Cie. Kg Vorrichtung zum Messen der Dosiermenge von Spülzusätzen
WO2008053193A1 (fr) * 2006-10-31 2008-05-08 Imi Vision Limited Dispositif et système de mesure de débit d'écoulement à ultrasons

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI67627C (fi) 1981-10-19 1985-04-10 Eino Haerkoenen Foerfarande och anordning foer maetning av stroemningshastigheten i stroemmen av uppslamningar genom utnyttjandet av ultraljud
US4598593A (en) 1984-05-14 1986-07-08 The United States Of America As Represented By The United States Department Of Energy Acoustic cross-correlation flowmeter for solid-gas flow
US5052230A (en) 1988-07-08 1991-10-01 Flowtec Ag Method and arrangement for flow rate measurement by means of ultrasonic waves
JP2683159B2 (ja) 1993-12-23 1997-11-26 エンドレス ウント ハウザー フローテック アクチエンゲゼルシャフト クランプオン超音波容積式流量計
DE19944411A1 (de) * 1999-09-16 2001-04-12 Kundo Systemtechnik Gmbh Ultraschall-Durchflußmesser
DE10057342A1 (de) * 2000-11-18 2002-05-23 Elster Produktion Gmbh Ultraschall-Durchflußmeßgerät
DE10327934B3 (de) * 2003-06-20 2005-02-24 Dräger Medical AG & Co. KGaA Messvorrichtung zur Messung des Durchflusses und/oder von Stoffeigenschaften eines Gasstroms
DE102006019146B3 (de) 2006-02-25 2007-09-13 SIKA Dr. Siebert & Kühn GmbH & Co. KG Vorrichtung zur Ermittlung der Strömungsgeschwindigkeit eines Fluides oder Gases in einem Rohr
DE102006030942A1 (de) 2006-07-05 2008-01-10 Landis+Gyr Gmbh Durchflussmesser mit einem Einlaufbereich und einer Durchflussmessstrecke

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335394A1 (de) * 1993-10-16 1995-04-20 Kernforschungsz Karlsruhe Ultraschalldurchflußmesser
US6298735B1 (en) * 1999-04-23 2001-10-09 Agilent Technologies, Inc. Pneumotachometer having annular ring transducers
EP1130366A2 (fr) * 1999-12-21 2001-09-05 Iskraemeco, Merjenje in Upravljanje Energije, D.D. Conduit de mesure pour un appareil ultrasonique de mesure de débit
DE10249542A1 (de) * 2002-10-23 2004-05-06 Endress + Hauser Flowtec Ag, Reinach Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massenstroms eines Mediums
DE102005046858B3 (de) * 2005-09-29 2007-01-18 Miele & Cie. Kg Vorrichtung zum Messen der Dosiermenge von Spülzusätzen
WO2008053193A1 (fr) * 2006-10-31 2008-05-08 Imi Vision Limited Dispositif et système de mesure de débit d'écoulement à ultrasons

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8904861B2 (en) 2009-11-19 2014-12-09 Endress + Hauser Flowtec Ag Measuring device
WO2014016315A1 (fr) * 2012-07-24 2014-01-30 Titan Enterprises Limited Débitmètre acoustique
DE102013005810A1 (de) * 2013-04-05 2014-10-09 Hydrometer Gmbh Verfahren zum Betrieb einer Ultraschallmessanordnung sowie Ultraschallmessanordnung
EP3004812B1 (fr) * 2013-06-07 2018-10-31 Endress+Hauser Flowtec AG Débitmètre ultrasonique
US9689727B2 (en) 2013-06-07 2017-06-27 Endress + Hauser Flowtec Ag Ultrasonic flow meter
WO2015150801A1 (fr) * 2014-03-31 2015-10-08 M-Flow Technologies Ltd Capteur de fluide
CN106537097A (zh) * 2014-03-31 2017-03-22 M-弗洛科技有限责任公司 流体传感器
US9983037B2 (en) 2014-03-31 2018-05-29 M-Flow Technologies Ltd Fluid sensor with a fluid conduit region of composite material including polymer matrix material and reinforcing elements
US10634531B2 (en) 2014-12-09 2020-04-28 Endress + Hauser Flowtec Ag Ultrasonic, flow measuring device
US10429220B2 (en) 2014-12-22 2019-10-01 Endress + Hauser Flowtec Ag Magneto-inductive flow measuring device
WO2016102168A1 (fr) * 2014-12-22 2016-06-30 Endress+Hauser Flowtec Ag Débitmètre électromagnétique
WO2019030229A1 (fr) * 2017-08-08 2019-02-14 Gwf Messsysteme Ag Débitmètre et canal de mesure
CN111033185A (zh) * 2017-08-08 2020-04-17 Gwf梅斯席特弥股份有限公司 流量计和测量通道
JP2020529599A (ja) * 2017-08-08 2020-10-08 ゲーヴェーエフ メスシステメ アーゲーＧｗｆ Ｍｅｓｓｓｙｓｔｅｍｅ Ａｇ 流量計および測定チャネル
RU2766999C2 (ru) * 2017-08-08 2022-03-16 Гвф Мессзюстеме Аг Расходомер и соответственный измерительный канал
US11422014B2 (en) 2017-08-08 2022-08-23 Gwf Messsysteme Ag Flow meter having a measuring channel formed by a hydroforming process
IL272172B2 (en) * 2017-08-08 2023-06-01 Gwf Messsysteme Ag Flow meter and measuring channel

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