CA2633518A1 - Measuring transducer of vibration-type - Google Patents

Measuring transducer of vibration-type Download PDF

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Publication number
CA2633518A1
CA2633518A1 CA002633518A CA2633518A CA2633518A1 CA 2633518 A1 CA2633518 A1 CA 2633518A1 CA 002633518 A CA002633518 A CA 002633518A CA 2633518 A CA2633518 A CA 2633518A CA 2633518 A1 CA2633518 A1 CA 2633518A1
Authority
CA
Canada
Prior art keywords
measuring
measuring transducer
counteroscillator
transducer
longitudinal axis
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.)
Granted
Application number
CA002633518A
Other languages
French (fr)
Other versions
CA2633518C (en
Inventor
Martin Anklin-Imhof
Christian Schuetze
Ennio Bitto
Christof Huber
Dieter Mundschin
Michael Lambrigger
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.)
Endress and Hauser Flowtec AG
Original Assignee
Individual
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
Priority claimed from DE200510062004 external-priority patent/DE102005062004A1/en
Priority claimed from DE200510062007 external-priority patent/DE102005062007A1/en
Application filed by Individual filed Critical Individual
Publication of CA2633518A1 publication Critical patent/CA2633518A1/en
Application granted granted Critical
Publication of CA2633518C publication Critical patent/CA2633518C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
    • G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
    • G01F1/8472—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having curved measuring conduits, i.e. whereby the measuring conduits' curved center line lies within a plane
    • G01F1/8477—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having curved measuring conduits, i.e. whereby the measuring conduits' curved center line lies within a plane with multiple measuring conduits
    • 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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • 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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
    • 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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
    • G01F1/8418—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments motion or vibration balancing means
    • 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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
    • G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
    • G01F1/8472—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having curved measuring conduits, i.e. whereby the measuring conduits' curved center line lies within a plane

Landscapes

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

Abstract

The invention relates to a measuring transducer comprising a housing and an inner part arranged in the housing. The inner part comprises at least one curved measuring tube (10) which vibrates at least intermittently during operation and is used to guide the medium, and a counter-oscillator (20) which is fixed to the measuring tube (10) on the inlet side in such a way as to form a coupling region (11#), and on the outlet side in such a way as to form a coupling region (12#).
The inner part is held in a vibrating manner in the converter housing at least by means of two connection tubular pieces (11, 12) which enable the measuring tube (10) to communicate with the tubular line during operation, and which are oriented in relation to each other and to an imaginary longitudinal axis (L) of the measuring transducer, such that the inner part can oscillate about the longitudinal axis (L) during operation. Furthermore, the measuring tube (10) and counter-oscillator (20) are embodied and oriented in relation to each other in such a way that both a centre of mass M10 of the measuring tube, located at a certain distance from the imaginary longitudinal axis (L), and a centre of mass M20 of the counter-oscillator (20), located at a certain distance from the imaginary longitudinal axis, lie in a common region of the measuring transducer which is defined by the imaginary longitudinal axis (L) and the measuring tube (10), and in such a way that the centre of mass M10 of the measuring tube (10) is located further away from the longitudinal axis (L) than the centre of mass M20 of the counter-oscillator (20).

Claims (51)

1. Measuring transducer of vibration type for a medium flowing in a pipeline, which measuring transducer comprises:
-A transducer housing; and -an internal part arranged in the transducer housing, including at least --a curved measuring tube (10) serving for the conveying of the medium and vibrating, at least at times, during operation, and --a counteroscillator (20) affixed externally to the measuring tube (10) with the forming of a first coupling zone (11#) on an inlet-side of the measuring tube (10) and a second coupling zone (12#) on an outlet-side of the measuring tube (10);
-wherein the internal part is mounted oscillatably in the transducer housing, at least by means of two connecting tube pieces (11, 12) --via which the measuring tube (10) communicates during operation with the pipeline, and --which are so oriented with respect to one another, as well as with respect to an imaginary longitudinal axis (L) of the measuring transducer, that the internal part can move, during operation, with pendulum-like motion about the longitudinal axis (L); and -wherein the measuring tube (10) and the counteroscillator (20) are so embodied and so directed with respect to one another that --both a center of mass (M10) of the measuring tube (10) spaced from the imaginary longitudinal axis, as well as also a center of mass (M20) of the counteroscillator (20) spaced from the imaginary longitudinal axis, lie in a common region of the measuring transducer spanned by the imaginary longitudinal axis (L) and the measuring tube (10), and --the center of mass (M10) of the measuring tube (10) additionally is spaced farther from the longitudinal axis (L) than the center of mass (M20) of the counteroscillator (20).
2. Measuring transducer as claimed in the preceding claim, wherein each of the centers of mass (M10, M20) has a separation from the imaginary longitudinal axis (L) which is greater than 10% of a greatest separation between measuring tube (10) and the imaginary longitudinal axis (L).
3. Measuring transducer as claimed in one of the preceding claims, wherein each of the centers of mass (M10, M20) has a separation from the imaginary longitudinal axis (L) which is smaller than 90% of a greatest separation between measuring tube (10) and imaginary longitudinal axis (L).
4. Measuring transducer as claimed in one of the preceding claims, wherein each of the centers of mass (M10, M20) has a separation from the imaginary longitudinal axis (L) which is greater than 30 mm.
5. Measuring transducer as claimed in one of the preceding claims, wherein a ratio of the separation of each of the centers of mass (M10, M20) to a diameter of the measuring tube (10) is, in each case, greater than 1.
6. Measuring transducer as claimed in the preceding claim, wherein the ratio of the separation of each of the centers of mass (M10, M20) to a diameter of the measuring tube (10) is, in each case, greater than 2 and smaller than 10.
7. Measuring transducer as claimed in one of the preceding claims, wherein a diameter of the measuring tube (10) is greater than 1 mm and smaller than 100 mm.
8. Measuring transducer as claimed in one of the preceding claims, wherein the longitudinal axis (L) of the measuring transducer imaginarily connects the two coupling zones (11#, 12#) together.
9. Measuring transducer as claimed in one of the preceding claims, wherein the counteroscillator (20) has a mass (M20) which is greater than a mass (M10) of the measuring tube (10).
10. Measuring transducer as claimed in the preceding claim, wherein a ratio of the mass (M20) of the counteroscillator (20) to the mass (M10) of the measuring tube (10) is greater than 2.
11. Measuring transducer as claimed in one of the preceding claims, wherein the measuring tube (10) is embodied essentially in a U, or V, shape.
12. Measuring transducer as claimed in one of the preceding claims, wherein the counteroscillator is formed by means of counteroscillator plates (21, 22) arranged laterally to the measuring tube (10).
13. Measuring transducer as claimed in the preceding claim, wherein the counteroscillator (20) is formed by means of at least two counteroscillator plates (21, 22) of which a first counteroscillator plate (21) is arranged to the left of measuring tube (10) and a second counteroscillator plate (22) is arranged to the right of the measuring tube (10).
14. Measuring transducer as claimed in the preceding claim, wherein each of the at least two counteroscillator plates (21, 22) has an imaginarily extending, curved center of gravity line imaginarily extending between a contour line distal with respect to the longitudinal axis and a contour line proximal with respect to the longitudinal axis.
15. Measuring transducer as claimed in the preceding claim, wherein the center of gravity line of each of the at-least two counteroscillator plates (21, 22) has, with reference to the longitudinal axis, a concave curvature, at least in a middle-section region.
16. Measuring transducer as claimed in the preceding claim, wherein the center of gravity line of each of the at least two counteroscillator plates (21, 22) has, with reference to the longitudinal axis, in each case, a convex curvature, at least in a coupling zones region.
17. Measuring transducer as claimed in claim 15 or 16, wherein the center of gravity line of each of the at least two counteroscillator plates (21, 22) has an essentially U, or V, shape, at least a middle-section region of the counteroscillator (20).
18. Measuring transducer as claimed in one of the claims 13 to 16, wherein the center of gravity line of each of the at least two counteroscillator plates (21, 22) extends essentially parallel to a center of gravity line of the measuring tube (10) extending imaginarily within its lumen.
19. Measuring transducer as claimed in one of the claims 14 to 17, wherein each of the at least two counteroscillator plates (21, 22) has an outer, lateral surface, of which a first edge is formed by a contour-providing edge distal with respect to the longitudinal axis, and a second edge is formed by a contour-providing edge proximal with respect to the longitudinal axis.
20. Measuring transducer as claimed in the preceding claim, wherein each of the at least two counteroscillator plates (21, 22) is so embodied and so placed in the measuring transducer that both the distal, as well as also the proximal, contour-providing edge of each of the at least two counteroscillator plates (21, 22) has, at least in a middle-section region of the counteroscillator (20), a separation from the longitudinal axis (L) different from zero.
21. Measuring transducer as claimed in the preceding claim, wherein each of the at least two counteroscillator plates (21, 22) is so embodied that, at least in the region of a middle section of the counteroscillator (20), a local plate height is, in each case, smaller than, in each case, in the region of the two coupling zones, wherein the local plate height thereat, in each case, corresponds to a smallest separation between the distal and proximal contour-providing edges of each of the at least two counteroscillator plates (21, 22).
22. Measuring transducer as claimed in the preceding claim, wherein each of the at least two counteroscillator plates (21, 22) is so embodied that it has in the middle-section region of the counteroscillator (20) a smallest plate height.
23. Measuring transducer as claimed in the preceding claim, wherein each of the at least two counteroscillator plates (21, 22) is so embodied that plate height of each of the at least two counteroscillator plates, in each case, decreases, especially monotonically or continuously, starting from a coupling zone toward the middle section of the counteroscillator (20).
24. Measuring transducer as claimed in one of the claims 12 to 23, wherein each of the at least two counteroscillator plates (21, 22) has an arc, or hanger, shaped contour.
25. Measuring transducer as claimed in one of the claims 13 to 16, wherein each of the at least two plates (21, 22) forming the counteroscillator (20) is arranged essentially parallel to the measuring tube (10).
26. Measuring transducer as claimed in one of the preceding claims, wherein measuring tube (10) and counteroscillator (20) are mechanically connected together on the inlet-side by means of at least a first coupler (31) and on the outlet-side by means of at least a second coupler (32).
27. Measuring transducer as claimed in one of the preceding claims, wherein the connecting tube pieces (11, 12) have essentially straight tube segments.
28. Measuring transducer as claimed in the preceding claim, wherein the connecting tube pieces (11, 12) are so oriented with respect to one another that the tube segments extend essentially parallel to the imaginary longitudinal axis (L).
29. Measuring transducer as claimed in the preceding claim, wherein the connecting tube pieces (11, 12) are so oriented with respect to one another that the essentially straight tube segments align essentially with one another.
30. Measuring transducer as claimed in the preceding claim, wherein the connecting tube pieces (11, 12) are so oriented with respect to one another that the essentially straight tube segments align essentially with the imaginary longitudinal axis (L).
31. Measuring transducer as claimed in one of the preceding claims, wherein the measuring tube (10) executes, during operation, at least at times, bending oscillations relative to the counteroscillator (20) and longitudinal axis (L).
32. Measuring transducer as claimed in one of the preceding claims, wherein the measuring tube (10) and counteroscillator (20) execute, at least at times and at least in part, bending oscillations of equal frequency about the longitudinal axis (L).
33. Measuring transducer as claimed in the preceding claim, wherein measuring tube (10) and counteroscillator (20) execute during operation, at least at times, bending oscillations about the longitudinal axis (L) which are, at least in part, out of phase with one another, especially essentially of opposite phase.
34. Measuring transducer as claimed in one of the preceding claims, wherein the internal part held oscillatably in the transducer housing has a natural lateral oscillation mode in which it oscillates during operation, accompanied by deformations of the two connecting tube pieces (11, 12), at least at times, relative to the transducer housing and laterally about the longitudinal axis (L).
35. Measuring transducer as claimed in one of the preceding claims, wherein the internal part held oscillatably in the transducer housing has a pendulum-like, oscillatory mode, in which it moves during operation in the manner of a pendulum, accompanied by deformations of the two connecting tube pieces (11, 12), at least at times, about the imaginary longitudinal axis (L).
36. Measuring transducer as claimed in claim 35, wherein at least a natural eigenfrequency of the pendulum-like, oscillatory mode is smaller than a lowest oscillation frequency with which the measuring tube (10) instantaneously vibrates.
37. Measuring transducer as claimed in claim 35 or 36, wherein at least one instantaneous natural eigenfrequency of the pendulum-like oscillatory mode is always smaller than an instantaneous lowest natural eigenfrequency of the measuring tube (10).
38. Measuring transducer as claimed in claim 34, wherein the internal part held oscillatably in the transducer housing has a pendulum-like oscillatory mode in which it moves in the manner of a pendulum, at least at times, about the imaginary longitudinal axis (L), during operation, accompanied by deformations of the two connecting tube pieces (11, 12), and wherein the lateral oscillatory mode of the internal part has a lowest eigenfrequency which is greater than a lowest eigenfrequency of the pendulum-like oscillatory mode of the internal part.
39. Measuring transducer as claimed in claim 38, wherein a ratio of the lowest eigenfrequency of the lateral oscillatory mode of the internal part to the lowest eigenfrequency of the pendulum-like oscillatory mode of the internal part is greater than 1.2.
40. Measuring transducer as claimed in claim 38 or 39, wherein a ratio of the lowest eigenfrequency of the lateral oscillatory mode of the internal part to the lowest eigenfrequency of the pendulum-like oscillatory mode of the internal part is smaller than 10.
41. Measuring transducer as claimed in one of the claims 38 to 40, wherein a ratio of the lowest eigenfrequency of the lateral oscillatory mode of the internal part to the lowest eigenfrequency of the pendulum-like oscillatory mode of the internal part is greater than 1.5 and smaller than 5.
42. Measuring transducer as claimed in one of the claims 38 to 41, wherein at least one natural eigenfrequency of the pendulum-like oscillatory mode of the internal part is smaller than a lowest oscillation frequency with which the measuring tube (10) instantaneously vibrates, and/or wherein at least an instantaneous natural eigenfrequency of the pendulum-like oscillatory mode of the internal part is always smaller than an instantaneously lowest natural eigenfrequency of the measuring tube (10).
43. Measuring transducer as claimed in claim 42, wherein a ratio of the lowest eigenfrequency of the measuring tube (10) to the lowest eigenfrequency of the pendulum-like oscillatory mode of the internal part is greater than 3.
44. Measuring transducer as claimed in claim 42 or 43, wherein a ratio of the lowest eigenfrequency of the measuring tube (10) to the lowest eigenfrequency of the pendulum-like oscillatory mode of the internal part is smaller than 20.
45. Measuring transducer as claimed in one of the claims 42 to 44, wherein a ratio of the lowest eigenfrequency of the measuring tube (10) to the lowest eigenfrequency of the pendulum-like oscillatory mode of the internal part is greater than 5 and smaller than 10.
46. Measuring transducer as claimed in one of the preceding claims, further comprising an exciter mechanism (40) for causing measuring tube (10) and counteroscillator (20) to vibrate.
47. Measuring transducer as claimed in one of the preceding claims further comprising a sensor arrangement (50) for registering oscillations, at least of the measuring tube (10).
48. Measuring transducer as claimed in the preceding claim, wherein the sensor arrangement for registering oscillations of the measuring tube includes at least a first sensor arranged on the inlet-side at the measuring tube and a second sensor arranged on the outlet-side at the measuring tube.
49. Measuring transducer as claimed in the preceding claim, wherein the sensor arrangement for registering oscillations of the measuring tube further includes at least a third sensor arranged on the inlet-side at the measuring tube and a fourth sensor arranged on the outlet-side at the measuring tube.
50. Measuring transducer as claimed in the preceding claim, wherein the first sensor lies opposite to the third sensor and the second sensor lies opposite to the fourth sensor.
51. Use of a measuring transducer as claimed in one of the preceding claims in an inline measuring device, especially a Coriolis mass-flow measuring device, density measuring device, and/or viscosity measuring device, serving for measuring a medium flowing in a pipeline.
CA2633518A 2005-12-22 2006-11-29 Measuring transducer of vibration-type Expired - Fee Related CA2633518C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE200510062004 DE102005062004A1 (en) 2005-12-22 2005-12-22 Mass converter housing for use in coriolis mass through-flow measurement has an inner section and a vibrating mass pipe which has greater dead-point stability
DE102005062004.3 2005-12-22
DE200510062007 DE102005062007A1 (en) 2005-12-22 2005-12-22 Vibration-type measuring transformer used e.g. as a mass flow measuring device comprises a housing, an inner part arranged in the housing, a curved partially vibrating measuring tube and a counter oscillator
DE102005062007.8 2005-12-22
PCT/EP2006/069076 WO2007074014A1 (en) 2005-12-22 2006-11-29 Vibratory measuring transducer

Publications (2)

Publication Number Publication Date
CA2633518A1 true CA2633518A1 (en) 2007-07-05
CA2633518C CA2633518C (en) 2012-08-21

Family

ID=37663098

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2633527A Expired - Fee Related CA2633527C (en) 2005-12-22 2006-11-29 Measuring transducer of vibration-type
CA2633518A Expired - Fee Related CA2633518C (en) 2005-12-22 2006-11-29 Measuring transducer of vibration-type

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2633527A Expired - Fee Related CA2633527C (en) 2005-12-22 2006-11-29 Measuring transducer of vibration-type

Country Status (6)

Country Link
EP (2) EP1963794B1 (en)
JP (2) JP5096365B2 (en)
CA (2) CA2633527C (en)
DK (2) DK1963794T3 (en)
RU (2) RU2406072C2 (en)
WO (2) WO2007074015A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2252865B1 (en) * 2008-02-20 2020-09-30 Micro Motion, Inc. Vibrating type flow meter and method for balancing a vibrating type flow meter
DE102008037700A1 (en) * 2008-08-14 2010-02-18 Endress + Hauser Flowtec Ag Vibration-type transducers
RU2464534C1 (en) * 2008-11-19 2012-10-20 Майкро Моушн, Инк. Flow metre (versions) and method of increasing separation interval between two or more vibrational frequencies of vibratory flow metre
CN102216740B (en) 2008-11-19 2013-07-17 微动公司 Coriolis flow meter with improved mode separation
DE102010001973A1 (en) 2010-02-16 2011-08-18 Endress + Hauser Flowtec Ag Vibration-type transducers with two counteroscillator arms
SG188480A1 (en) * 2010-09-09 2013-04-30 Micro Motion Inc Thermal stress compensation in a curved tube vibrating flow meter
AU2013372967B2 (en) * 2013-01-10 2016-11-10 Micro Motion, Inc. Method and apparatus for a vibratory meter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027936A1 (en) * 1990-09-04 1992-03-05 Rota Yokogawa Gmbh & Co Kg MASS DISPENSER
EP0770858B1 (en) * 1995-10-26 1999-12-29 Endress + Hauser Flowtec AG Coriolis mass flow sensor with a single measuring tube
JP3327325B2 (en) * 1997-07-11 2002-09-24 横河電機株式会社 Coriolis mass flowmeter
EP0905488A3 (en) * 1997-09-30 1999-04-21 Yokogawa Electric Corporation Coriolis mass flowmeter
JP3475786B2 (en) * 1998-05-19 2003-12-08 横河電機株式会社 Coriolis mass flowmeter
US5892159A (en) * 1997-10-17 1999-04-06 Smith; James Everett Mass flow rate meter
JP2000046613A (en) * 1998-07-28 2000-02-18 Yokogawa Electric Corp Coriolis mass flowmeter
US6684716B2 (en) * 2000-04-07 2004-02-03 Kazumasa Ohnishi Coriolis flowmeter
JP2002039830A (en) * 2000-05-19 2002-02-06 Kazumasa Onishi Coriolis flowmeter
EP1260798A1 (en) * 2001-05-23 2002-11-27 Endress + Hauser Flowtec AG Vibration type measuring transducer
US6666098B2 (en) * 2001-05-23 2003-12-23 Endress + Hauser Flowtec Ag Vibratory transducer
US6957587B2 (en) * 2001-08-29 2005-10-25 Endress + Hauser Flowtech, Ag Vibratory transducer
DE10351311B3 (en) * 2003-10-31 2005-06-30 Abb Patent Gmbh Coriolis mass flowmeter

Also Published As

Publication number Publication date
EP1963793B1 (en) 2018-07-18
RU2008130103A (en) 2010-01-27
JP2009527729A (en) 2009-07-30
RU2405128C2 (en) 2010-11-27
JP5096365B2 (en) 2012-12-12
EP1963794B1 (en) 2017-01-04
RU2406072C2 (en) 2010-12-10
EP1963793A1 (en) 2008-09-03
CA2633518C (en) 2012-08-21
CA2633527C (en) 2013-01-08
EP1963794A1 (en) 2008-09-03
WO2007074015A1 (en) 2007-07-05
JP2009526200A (en) 2009-07-16
RU2008130101A (en) 2010-01-27
DK1963794T3 (en) 2017-04-10
WO2007074014A1 (en) 2007-07-05
DK1963793T3 (en) 2018-11-05
JP5096366B2 (en) 2012-12-12
CA2633527A1 (en) 2007-07-05

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