DE10327076B3 - Ultrasonic flowmeter has an ultrasonic transducer and ultrasound mirror that has an additional flow guide for optimizing the fluid flow over its surface - Google Patents

Ultrasonic flowmeter has an ultrasonic transducer and ultrasound mirror that has an additional flow guide for optimizing the fluid flow over its surface

Info

Publication number
DE10327076B3
DE10327076B3 DE2003127076 DE10327076A DE10327076B3 DE 10327076 B3 DE10327076 B3 DE 10327076B3 DE 2003127076 DE2003127076 DE 2003127076 DE 10327076 A DE10327076 A DE 10327076A DE 10327076 B3 DE10327076 B3 DE 10327076B3
Authority
DE
Germany
Prior art keywords
ultrasonic
mirror
deflection mirror
flow
counter
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE2003127076
Other languages
German (de)
Inventor
Roland Messthaler
Hans-Michael Sonnenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl Metering GmbH
Original Assignee
Hydrometer GmbH
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 Hydrometer GmbH filed Critical Hydrometer GmbH
Priority to DE2003127076 priority Critical patent/DE10327076B3/en
Priority claimed from EP04013456.1A external-priority patent/EP1493998B1/en
Application granted granted Critical
Publication of DE10327076B3 publication Critical patent/DE10327076B3/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • G01F1/66Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by measuring frequency, phaseshift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
    • G01F1/662Constructional details

Abstract

Ultrasonic flowmeter for measuring the flow rate of a flowing liquid or gas has a housing (1) that encloses a measuring section along which a differential time of flight measurement can be made using at least an ultrasonic transducer (2) and a ultrasound mirror (5) for guiding the sound beam. Fluid flow guiding elements are provided in the area of the mirror surface to optimize the fluid flow over the mirror surface. Independent claims are also included for the following:- (a) an ultrasound meter with an ultrasound deflection mirror holder (8) manufactured from two halves separated in a direction parallel to the longitudinal axis of the meter and; (b) an ultrasound meter with an ultrasound deflection mirror holder, mirror and measurement pipe that can be removed and inserted as a unit in the meter.

Description

  • The The present invention relates to an ultrasonic counter for Determination of the flow rate a streaming Medium, in particular liquid or Gas, with a housing, one inside the case arranged measuring section, along a transit time measurement, in particular differential transit time measurement, feasible is at least one ultrasonic transducer, at least one deflection mirror, the upstream to the flowing Medium is, by means of which the ultrasonic wave of the ultrasonic transducer to the measuring tube is deflected towards. With differential transit time measurement, the opposite measurement takes place either via reflection the ultrasonic signal of the ultrasonic transducer or via a from a further ultrasonic transducer sent ultrasonic signal at the opposite End of the test section.
  • The EP 0 897 101 A1 describes an ultrasonic flowmeter having a housing having an inlet port and an outlet port. In each case one of the ultrasound transducers irradiated mirrors is arranged in the inlet connection and in the outlet connection. The mirrors are each held by a plastic carrier, which are laterally inserted through the opening in the inlet or outlet nozzle. To minimize the flow resistance of the mirror, a displacement body is attached to the plastic carrier.
  • The DE 201 07 894 U1 discloses a Ultraschallflußmeßgerät of the generic type. In this case, the upper edge of the flow deflecting deflecting mirror flows around the medium, whereby a recirculation zone or zones reduced flow velocity in the region of the surface of the first deflection mirror form, causing contamination on the deflection mirror. As a result, the long-term stability of the Ultraschallflußmeßgerätes suffers.
  • The DE 199 30 278 A1 describes an ultrasonic counter with a first deflection mirror, which includes aligned parallel to the flow path holes that are intended to counteract contamination of the deflection mirror. However, the deflecting mirrors described therein are very expensive in their production, since a large number of holes, which are not perpendicular to the mirror plane, must be introduced.
  • The Object of the present invention is a novel ultrasonic meters to disposal on the one hand by long-term stability and insensitivity to contamination on the other hand, however, simple and inexpensive to manufacture is.
  • The The above object is the generic ultrasonic meter thereby solved that Means are provided in the region of the deflecting mirror, the flow in the Range of Umlenkspiegeloberfläche specifically affect such that a recirculation zone, a Zone with reduced flow and / or a zone of stagnant medium dissolved, displaced or reduced becomes. The basic insight of the invention is, means which affect the formation of such zones in the region of the deflecting mirror surface, namely prevent, postpone or at least significantly reduce them.
  • This may suitably in selected Durchflußbereichen done, which is the counter typically operated. Thus it can be guaranteed that layers while a standstill phase or atypical flows again be removed.
  • Conveniently, the means comprise flow directors for the Generation of at least one directed partial flow, wherein the partial flow - in particular in the upper region of the first deflecting mirror - substantially parallel to the surface directed the first deflecting mirror. This partial flow prevents the formation of unwanted Flow zones, z. B. a recirculation zone in the region of the mirror surface and thus a gradual Deposition of dirt.
  • The Means are according to another embodiment of the present invention expediently especially provided in the region of the upper end of the deflecting mirror. They therefore have an immediate effect on themselves in this area as well resulting flow zones (eg recirculation vortex).
  • The Means can expediently in Area of Umlenkspiegelhalters and / or in the region of the deflection mirror yourself.
  • One suitable means is the mirror holder in the form of a laterally adjacent mirror holder extension to design, where The latter essentially flush on the surface of the first deflecting mirror is applied. This will, so to speak, the surface of the deflection mirror by means of the mirror holder extension and extended to the top. This ensures that the recirculation zone from the surface of Deflection mirror moves in the area of the mirror holder extension.
  • When Means are expediently at least one correspondingly directed nozzle or a corresponding Arrangement of several nozzles intended.
  • alternative or additionally can do this the means also at least one appropriately directed guide, in particular guide vanes, include.
  • in this connection can the nozzle either in the first deflection mirror, in Umlenkspiegelhalter or between first deflecting mirror and Umlenkspiegelhalter are.
  • According to one Another embodiment of the present invention is the directed Guide or nozzle domed or curved. Also, the top end of the mirror holder extension is advantageously bent educated.
  • Of Further, a return channel is formed in an advantageous manner, in due to a at the end of the return channel located mainstream according to the Venturi principle formed negative pressure takes place a backflow, which increased to an flow and thus leads to a self-cleaning of the mirror. Of the Return channel is in this case designed such that he in the area of the transition from Mirror to mirror holder extension runs substantially parallel to the mirror surface. Of the Return channel can pass through a protrusion on the mirror holder extension extend or through a correspondingly shaped mirror holder extension in conjunction with an additional Part be formed.
  • A further expedient embodiment of present invention is that the mirror extension holder in the area of his transition to Deflecting mirror a flat, substantially flush ending extension the Umlenkspiegeloberfläche forms, with the result that the recirculation zone in the area of the mirror holder extension moves.
  • One - also sibling claimed - embodiment The present invention is characterized in that Umlenkspiegelhalter expediently from two along a longitudinal Dividing line composed halves. This facilitates the use of the mirror as well as the other the preparation of Umlenkspiegelhalters as elaborately shaped plastic molding. Also can identical halves for additional Deflection mirror provided in the ultrasonic counter be. This idea allows optimal fixation of the deflection mirror, which is an important requirement to guarantee a long-term stability of the ultrasonic counter is.
  • If the deflecting mirror holder has means for fixing the measuring tube, is advantageously no housing processing necessary.
  • Further can the thermal expansion coefficients of mirror holder, housing and / or Mirror adapted be.
  • Of the Deflection mirror has expediently parallel holding surfaces on. He can z. B. polygonal, in particular octagonal be, whereby better fixing accuracy can be achieved during installation. The fixation of the mirror takes place here z. B. form-fitting either via the four rectangular surfaces or over the four diagonal surfaces.
  • Farther can by corresponding pockets in the holder, the mirrors are held positively, what the long-term stability elevated.
  • Conveniently, shows the partial flow in Comparison to the mainstream a greater flow rate on.
  • The relationship of partial flow to total flow is ≤ 1:20 or is expediently in a range of 1:20 to 1: 130. This is not essential adulteration the mainstream and thus no negative impact the measuring properties of the ultrasonic counter.
  • The Retaining webs on Umlenkspiegelhalter can screen-shaped or as a flow straightener be educated.
  • Of the The subject matter of claim 18 has the advantage that - due the special fixation - one reduced tolerance of the components is possible.
  • Advantageous embodiments The present invention will be described below with reference to drawings explained in more detail.
  • It demonstrate:
  • 1 a sectional view of an ultrasonic counter of the type described above;
  • 2 shows in a highly simplified schematic representation of the formation of a recirculation zone in a deflection mirror of the prior art;
  • 3 shows a deflection mirror and Umlenkspiegelhalter according to the present invention;
  • 4 shows a further embodiment of a deflecting mirror and Umlenkspiegelhalters according to the invention in a longitudinal sectional view ( 4A ), in a frontal plan view of the deflection mirror ( 4B ) and one half of the Umlenkspiegelhalters in perspective representation ( 4C );
  • 5 shows a highly simplified, schematic representation of a deflection mirror and Umlenkspiegelhalter with a return channel, the the deflecting mirror holder is integrated ( 5A ) and a return channel formed by the mirror holder extension and an additional part ( 5B );
  • 6 a further embodiment of the deflection mirror and Umlenkspiegelhalters according to the invention with an extended mirror holder extension;
  • 7 a further embodiment of the ultrasonic counter according to the invention in longitudinal section and perspective view and
  • 8th the area of the Umlenkspiegelhalters the ultrasonic counter after 7 in upstream plan view.
  • The representation in 1 shows a generic ultrasonic meter with a housing 1 , an ultrasonic transducer 2 and another ultrasonic transducer 3 , which in each case via housing openings provided for this purpose in the side wall of the housing 1 inserted and by associated covers with seals in the wall of the housing 1 are held.
  • The ultrasonic transducer 2 is a deflection mirror 5 , the other ultrasonic transducer 3 another deflection mirror 6 assigned. The measuring section 4 (ie the path of the sound signals) passes from the ultrasonic transducer 2 to the deflection mirror 5 , from the latter to the further deflection mirror 6 and from this to another converter 3 and back in opposite directions. The measuring section 4 therefore has a U-shape. However, other mirrors (not shown) and a diagonally extending sound guide may also be present within the scope of the invention (not shown).
  • The area between both deflecting mirrors 5 respectively. 6 the measuring section 4 is from a measuring tube 7 surrounded, which has a measuring tube holder 9 in the case 1 is held.
  • The medium, for. As service water flows through an inlet, not shown, in the representation of 1 from the left, flows around the deflection mirror 5 , flows along the measuring section 4 , flows around the further deflection mirror 6 and leaves the ultrasonic counter in the region of the (also not shown) outlet. The deflection mirror 5 respectively. 6 each of a Umlenkspiegelhalter 8th fixed, from the only deflection mirror holder 8th in the area of the deflection mirror 5 in 1 is shown.
  • In the prior art, the problem arises that when flowing around the deflecting mirror 5 especially in the area of the top z. B. a so-called recirculation zone 16 forms, which can lead to deposits on the surface of the deflection mirror and thus to a deterioration of the long-term operation with increasing time. These deposits are in 2 (exaggerated) with the reference number 19 shown. The recirculation zone is the area in which the recirculation vortex 20 along the surface of the deflecting mirror 5 form.
  • An embodiment of the ultrasonic counter according to the present invention is shown in FIG 3 explained in more detail. Consequently, it is located in the region of the Umlenkspiegelhalters 8th a nozzle 12 for generating a partial flow, which in the upper region of the surface of the first deflection mirror 5 is directed parallel to the surface. This partial flow prevents the formation of recirculation vortices 20 and thus a recirculation zone. The nozzle has a slightly curved course and extends towards the mirror surface with a continuously tapering cross section. The nozzle 12 is expediently flat, so that the partial flow has a wider surface area of the deflecting mirror 5 detected.
  • The holder 8th is sleeve-shaped and is axially in the housing 1 of the ultrasonic counter inserted. In addition, the holder points 8th expediently - as in 3 shown - circumferentially arranged, large-scale openings on. In which the holder of the deflecting mirror 5 opposite region of Umlenkspiegelhalters 8th There is a circumferential recess that serves as a receptacle 10 for a in 3 not shown measuring tube holder (reference numeral 9 in 4A ) serves.
  • The deflection mirror 5 becomes in an arrangement of a plurality of opposite retaining projections 13 fixed to two parallel surfaces, of which in 3 only two are shown for clarity.
  • Due to the design and arrangement of the nozzle 12 becomes a small compared to the volume of the main flow partial flow parallel to the surface of the first deflection mirror 5 introduced at its upper end at high speed and thus requires avoidance or at least significant reduction in the formation of Rezirkulationswirbeln 20 in the area of the surface of the deflecting mirror 5 , The fact that the partial flow only a fraction (the cross-sectional ratios are 2-4 mm 2 at 50-400 mm 2 for main flow) of the total flow, for example, 1: 100 of the total flow, caused by the partial flow no significant distortion of the main flow and thus none negative impact on the measurement properties of the ultrasonic meter.
  • The deflecting mirror holder is zweckmä ßigerweise from a material with a high modulus of elasticity, in particular of plastic, for. Fiber reinforced plastics such as PES, PSU, PPSU, PPA, PEI, PEEK / PEAK including their derivatives PPS or PPE. In particular, by adding glass or carbon fibers, the thermal expansion of the housing (typically metal) can be adjusted.
  • The holding webs of Umlenkspiegelhalters 8th are kept small in cross-section, for example less than 4 mm 2 (eg 2 × 2 mm) in order to keep the pressure loss in the mirror flow around low and to be able to neglect the webs acoustically. The cross-sectional geometry of the webs of Umlenkspiegelhalters 8th has expediently a turbulence of the medium favoring form, as will be explained later.
  • Alternatively, the webs 22 of Umlenkspiegelhalters 8th - see. 7 - But also have a rectifying effect on the flow, in particular on the inlet flow.
  • Even larger foreign bodies, which could damage the ultrasonic counter, are through the webs 22 of Umlenkspiegelhalters 8th or their arrangement intercepted. The bridges 22 may alternatively be formed in a sieve-shaped.
  • 4A shows a further embodiment of the invention. The Umlenkspiegelhalter shown there 8th corresponds to the deflection mirror holder 8th the embodiment according to 3 , Instead of the nozzle is in the embodiment according to 4A an arrangement of guide vanes 14 intended. These baffles 14 also ensure the formation of a corresponding partial flow, which at the upper end of the deflection mirror 5 directed in parallel to its surface.
  • To ensure easy manufacturability, in particular as a plastic molded part, the Umlenkspiegelhalter 8th the embodiment according to 3 such as 4 formed in the form of two longitudinally cut halves, as is apparent from 4B results. The two halves are mirror-symmetrical to each other. The guide wings 14 each half of the Umlenkspiegelhalters 8th may be arranged as an additional part provided or integrated into the molding.
  • Out 4A Beyond that, the attachment of the measuring tube 7 via its measuring tube holder 9 as well as the recording 10 for the measuring tube holder 9 recognizable. In 4B are identical features of the two halves of Umlenkspiegelhalters 8th drawn only once.
  • Except for the difference, all apply to the design 3 mentioned features equally for the design according to 4 ,
  • Like from the 4B such as 4C continues to show, is the deflection mirror 5 octagonal formed and is about corresponding retaining projections 13 held on diametrically opposed parallel edges held. As a result, a particularly secure fixation of the deflection mirror 5 guaranteed.
  • The first deflecting mirror 5 is suitably made of a sheet metal part, which is either stamped or water jet cut.
  • The above statements on the first deflection mirror 5 apply equally to the design of the ultrasonic counter after 3 as well as for the embodiments described below.
  • In the embodiment according to 5A , which only the deflection mirror 5 and the related Umlenkspiegelhalter 8th shows, via a Venturi effect, a partial negative pressure to generate a directed backflow 15 along a portion of the surface of the deflecting mirror 5 generated. This is at the top of the mirror holder extension 18 a curved guide surface together with a return channel 17 intended. The return channel 17 runs out of the plane of the surface of the deflecting mirror 5 slightly curved in the direction of the flow. The resulting backflow 15 ensures a permanent suction of deposits in the area of the mirror surface and thus a self-cleaning effect.
  • The same applies to the design after 5B , The only difference here is that the return channel 17 through the mirror holder extension 18 on the one hand and an additionally provided nose 21 is formed.
  • In the embodiment according to 6 is also a mirror holder extension 18 provided, which has on its upper side a curved guide surface. Here is the mirror holder extension 18 elongated so that an elongated, substantially planar surface is flush with the upper end of the surface of the deflecting mirror 5 followed. This will cause a shift of the recirculation zone 16 in the area of the mirror holder extension 18 causes. At the same time, a substantially parallel to the surface of the first deflection mirror takes place 5 Directed flow, which prevents deposits in this area.
  • 7 shows a further embodiment of the ultrasonic counter according to the invention in longitudinal section. The Stromlini is particularly easy to spot enförmig shaped deflection mirror holder 8th including the retaining bars 11 , The deflecting mirror holder 8th is a single molded part and includes the inclusion of the deflection mirror 5 , the retaining bars 11 as well as the recording 10 for the measuring tube holder 9 of the measuring tube 7 ,
  • In the embodiment according to 7 is the deflection mirror holder 8th over the total length of the test section 4 formed in one piece, that carries both the one deflecting mirror 5 as well as the further deflection mirror 6 , In addition, the deflection mirror holder 8th via a centrally mounted fixing element 22 held in position, whereby the components (due to the symmetrical fixation) can be manufactured with a reduced tolerance.
  • 8th shows a plan view of the Umlenkspiegelhalter 8th from the upstream side. The deflecting mirror holder 8th includes two crossed holding webs 11 , with which a flow rectification is achieved. In the middle area of the Umlenkspiegelhalters 8th is the deflection mirror 5 positioned.
  • Various Features of the above-described embodiments of the ultrasonic counter according to the invention can in be exchanged with each other in any way.
  • With The present invention is a novel ultrasonic counter for disposal whose deflection mirror is free of deposits and thus has improved long-term stability. At the same time the ultrasonic counter in easier and cheaper Way to produce. The invention therefore represents a very essential Post on the relevant Field of technology.
  • 1
    casing
    2
    converter
    3
    converter
    4
    measuring distance
    5
    deflecting
    6
    deflecting
    7
    measuring tube
    8th
    Umlenkspiegelhalter
    9
    Meßrohrhalter
    10
    admission for measuring tube holder
    11
    holding web
    12
    jet
    13
    retaining projection
    14
    vanes
    15
    backwash
    16
    recirculation zone
    17
    Return channel
    18
    Mirror holder extension
    19
    deposits
    20
    recirculation vortex
    21
    nose
    22
    fixing

Claims (18)

  1. Ultrasonic counter for determining the flow rate of a flowing medium, in particular a liquid or a gas, with a housing ( 1 ), one within the housing ( 1 ) arranged measuring section ( 4 ), along which a transit time measurement, in particular differential transit time measurement, can be carried out, at least one ultrasonic transducer ( 2 ), at least one deflecting mirror ( 5 ), by means of which the ultrasonic wave of the ultrasonic transducer ( 2 ) is deflected, characterized in that means in the region of the deflection mirror ( 5 ) are provided, which specifically influence the flow in the region of the Umlenkspiegeloberfläche such that a recirculation zone, a zone with reduced flow and / or a zone with stagnant medium, dissolved, displaced or reduced.
  2. Ultrasonic meter according to claim 1, characterized in that the means comprise flow guiding devices for at least one directed partial flow and, in particular in the upper region of the deflecting mirror (US Pat. 5 ), the partial flow substantially parallel to the surface of the first deflection mirror ( 5 ).
  3. Ultrasonic counter according to claim 1 or 2, characterized in that the means in the region of the upper end of the deflection mirror ( 5 ) are provided.
  4. Ultrasonic counter according to one of the preceding claims, characterized in that the means on the Umlenkspiegelhalter ( 8th ) and / or at the deflection mirror ( 5 ) are located.
  5. Ultrasonic counter according to one of the preceding claims, characterized in that the means comprise a mirror holder extension ( 18 ) substantially flush with the surface of the deflection mirror ( 5 ) is present.
  6. Ultrasound counter according to one of the preceding claims, characterized in that the means comprise at least one nozzle ( 12 ).
  7. Ultrasound meter according to one of the preceding claims, characterized in that the means comprise at least one guide device, in particular at least one guide blade ( 14 ).
  8. Ultrasonic meter according to claim 6 or 7, characterized in that the nozzle ( 12 ) in the deflection mirror ( 5 ), in Umlenkspiegelhalter ( 8th ) or between deflecting mirrors ( 5 ) and deflecting mirror holder ( 8th ) is located.
  9. Ultrasonic counter according to claims 6-8, characterized in that the nozzle ( 12 ) or guide is curved.
  10. Ultrasonic meter according to claim 9, characterized in that a return channel ( 17 ), in particular in the region of the upper-side end of the deflecting mirror ( 5 ), is provided.
  11. Ultrasonic meter according to claim 10, characterized in that the return channel ( 17 ) by a projection of the mirror holder extension ( 18 ) extends therethrough.
  12. Ultrasonic counter according to one of claims 5 - 11, characterized in that the mirror holder extension ( 18 ) forms a substantially flush with the Umlenkspiegeloberfläche, flat transverse surface extension thereof.
  13. Ultrasonic counter for determining the flow rate of a flowing medium, in particular a liquid or a gas with a housing, a arranged within the housing measuring section, along which a transit time measurement, in particular differential transit time measurement is feasible, at least one ultrasonic transducer, at least one deflection mirror, by means of which the ultrasonic wave of the Ultrasonic transducer is deflected, in particular according to one of the preceding claims, characterized in that the Umlenkspiegelhalter ( 8th ) is constructed of two halves separated in the longitudinal direction.
  14. Ultrasonic meter according to one of the preceding claims, characterized in that the deflecting mirror holder ( 8th ) Means for fixing the measuring tube ( 7 ) having.
  15. Ultrasonic counter according to one of the preceding claims, characterized in that the deflecting mirror ( 5 ) has mutually parallel mounting surfaces.
  16. ultrasonic meters according to one of the preceding claims, characterized that the partial flow in comparison to the mainstream one greater flow rate having.
  17. ultrasonic meters according to one of the preceding claims, characterized that the ratio of partial flow to total flow ≤ 1:20, preferably in a range of 1:20 to 1: 130.
  18. Ultrasonic meter according to one of the preceding claims, characterized in that the deflecting mirror holder ( 8th ) both the one deflecting mirror ( 5 ) as well as the further deflecting mirror ( 6 ) and the deflection mirror via a particular centrally arranged fixing element ( 22 ) is held in position.
DE2003127076 2003-06-13 2003-06-13 Ultrasonic flowmeter has an ultrasonic transducer and ultrasound mirror that has an additional flow guide for optimizing the fluid flow over its surface Active DE10327076B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003127076 DE10327076B3 (en) 2003-06-13 2003-06-13 Ultrasonic flowmeter has an ultrasonic transducer and ultrasound mirror that has an additional flow guide for optimizing the fluid flow over its surface

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE2003127076 DE10327076B3 (en) 2003-06-13 2003-06-13 Ultrasonic flowmeter has an ultrasonic transducer and ultrasound mirror that has an additional flow guide for optimizing the fluid flow over its surface
EP04013456.1A EP1493998B1 (en) 2003-06-13 2004-06-08 Ultrasonic flow counter to determine flow rate of a flowing medium
PL08009694T PL1978337T3 (en) 2003-06-13 2004-06-08 Ultrasound meter for determining the flow rate of a flowing medium
PL04013456T PL1493998T3 (en) 2003-06-13 2004-06-08 Ultrasonic flow counter to determine flow rate of a flowing medium
DK08009694.4T DK1978337T3 (en) 2003-06-13 2004-06-08 Ultrasonic meter to determine the flow rate of a flowing medium
DK04013456.1T DK1493998T3 (en) 2003-06-13 2004-06-08 Ultrasonic meter to determine the flow rate of a flowing medium
EP08009694.4A EP1978337B1 (en) 2003-06-13 2004-06-08 Ultrasound meter for determining the flow rate of a flowing medium

Publications (1)

Publication Number Publication Date
DE10327076B3 true DE10327076B3 (en) 2005-04-07

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Cited By (12)

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EP1967828A1 (en) 2007-03-09 2008-09-10 Hydrometer GmbH Fluid counter
DE102004053860B4 (en) * 2004-11-04 2009-04-16 Hydrometer Gmbh Ultrasonic counter for determining the flow rate of a flowing medium
DE102008049891A1 (en) * 2008-10-02 2010-06-17 Hydrometer Gmbh Flow straightener for a flowmeter, in particular an ultrasonic measuring device
EP2278281A1 (en) * 2009-07-03 2011-01-26 Kamstrup A/S Flow meter with reflector unit locked in relation to housing
DE202009014502U1 (en) 2009-10-27 2011-03-10 Körner, Hans-Holger Flow rate measuring device with mirror at the end of the measuring tube
EP2410299A2 (en) 2010-07-21 2012-01-25 Hydrometer GmbH Housing for an ultrasound measuring device for measuring a fluid flow and method for producing a housing
DE202012007472U1 (en) 2012-08-03 2013-11-06 Hans-Holger Körner Deflection mirror device for an ultrasonic flowmeter and ultrasonic flowmeter
EP2988103A1 (en) * 2014-08-20 2016-02-24 Landis+Gyr GmbH Flow meter with a measuring insert that can be inserted into a housing
CN106092231A (en) * 2009-12-15 2016-11-09 卡姆鲁普股份有限公司 The ultrasonic flowmeter housing formed by monoblock type polymer architecture
EP2722652B1 (en) * 2012-06-13 2018-06-06 Basic Intelligence Technology Co., Ltd. Ultrasonic flowmeter and ultrasonic flow measuring method
DE202018006222U1 (en) 2018-12-18 2019-08-21 Engelmann Sensor Gmbh Ultrasonic flow meter
EP3671138A1 (en) 2018-12-18 2020-06-24 Engelmann Sensor GmbH Ultrasonic flow meter

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DE20107894U1 (en) * 2001-04-11 2001-08-30 Kamstrup As Skanderborg Ultrasonic flow meter
DE10047383C1 (en) * 2000-09-25 2001-11-08 Siemens Ag Ultrasonic flowmeter has relatively spaced ultrasonic heads each provided with associated reflector for ultrasonic waves

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Publication number Priority date Publication date Assignee Title
DE9420760U1 (en) * 1994-04-14 1995-04-20 Kamstrup As Flow meter
EP0897101A1 (en) * 1997-08-14 1999-02-17 Electrowatt Technology Innovation AG Ultrasonic flowmeter
DE19930278A1 (en) * 1999-07-01 2001-01-11 Hydrometer Gmbh Ultrasonic counter with sound deflection
DE10047383C1 (en) * 2000-09-25 2001-11-08 Siemens Ag Ultrasonic flowmeter has relatively spaced ultrasonic heads each provided with associated reflector for ultrasonic waves
DE20107894U1 (en) * 2001-04-11 2001-08-30 Kamstrup As Skanderborg Ultrasonic flow meter

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053860B4 (en) * 2004-11-04 2009-04-16 Hydrometer Gmbh Ultrasonic counter for determining the flow rate of a flowing medium
EP3043154A1 (en) 2007-03-09 2016-07-13 Diehl Metering GmbH Fluid counter
DE102007011546A1 (en) 2007-03-09 2008-09-11 Hydrometer Gmbh fluid meter
DE102007011546B4 (en) * 2007-03-09 2009-07-30 Hydrometer Gmbh fluid meter
US7819021B2 (en) 2007-03-09 2010-10-26 Hydrometer Gmbh Fluid meter
EP1967828A1 (en) 2007-03-09 2008-09-10 Hydrometer GmbH Fluid counter
DE102008049891A1 (en) * 2008-10-02 2010-06-17 Hydrometer Gmbh Flow straightener for a flowmeter, in particular an ultrasonic measuring device
DE102008049891B4 (en) * 2008-10-02 2012-12-06 Hydrometer Gmbh Flow straightener for a flowmeter, in particular an ultrasonic measuring device
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