EP3837505A1 - Capteur de mesure et appareil de mesure - Google Patents

Capteur de mesure et appareil de mesure

Info

Publication number
EP3837505A1
EP3837505A1 EP19748518.8A EP19748518A EP3837505A1 EP 3837505 A1 EP3837505 A1 EP 3837505A1 EP 19748518 A EP19748518 A EP 19748518A EP 3837505 A1 EP3837505 A1 EP 3837505A1
Authority
EP
European Patent Office
Prior art keywords
coil
measuring
measuring tube
sensor
magnetic
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.)
Withdrawn
Application number
EP19748518.8A
Other languages
German (de)
English (en)
Inventor
Severin Ramseyer
Benjamin Schwenter
Marc Werner
Claude HOLLINGER
Martin Stucki
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
Endress and Hauser Flowtec AG
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 and Hauser Flowtec AG, Flowtec AG filed Critical Endress and Hauser Flowtec AG
Publication of EP3837505A1 publication Critical patent/EP3837505A1/fr
Withdrawn legal-status Critical Current

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
    • G01F1/8409—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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • 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
    • G01F1/8422—Coriolis or gyroscopic mass flowmeters constructional details exciters
    • 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
    • G01F1/8427—Coriolis or gyroscopic mass flowmeters constructional details detectors
    • 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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • G01N2009/006—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis vibrating tube, tuning fork

Definitions

  • the invention relates to a sensor of a measuring device for detecting a
  • Mass flow rate or a density of a medium flowing through at least one measuring tube of the measuring sensor the measurement of the mass flow rate or the density of the medium being based on evaluation of measuring tube vibrations impressed by the measuring tube, and such a measuring device.
  • DE102015120087 a measuring device with two counter-rotating measuring tubes, sensors for detecting measuring tube vibrations each having a magnet and a coil device, the magnet and associated coil device being attached to different measuring tubes.
  • a disadvantage of this solution is that the measuring tubes have different masses and therefore have different vibration behavior.
  • Sensor coils of each pair of sensor coils are arranged on opposite measuring tube sides.
  • the measuring tubes each carry several magnets, which are set up to
  • the sensor coil holder is attached to a measuring tube housing using brackets.
  • a disadvantage of this solution is that such a housing is difficult to design stable in terms of vibration technology and therefore not only measuring tube vibrations but also
  • the object of the invention is therefore to propose a measuring sensor and a measuring device in which undesirable influences on a sensor system are largely minimized.
  • the object is achieved by a sensor according to independent claim 1 and by a measuring device according to independent claim 15.
  • An inventive measuring sensor of a measuring device for detecting a mass flow or a density of a medium flowing through at least one measuring tube of the measuring sensor comprises: the at least one measuring tube with an inlet and an outlet, which is set up to guide the medium between inlet and outlet; at least one exciter, which is set up to close the at least one measuring tube
  • At least two sensors which are set up to detect the deflection of the vibrations of at least one measuring tube; wherein at least one exciter and the sensors each have a coil device, each with at least one coil, and each have a magnetic device, the
  • Magnet devices are movable relative to the respective coil device, the magnet device of a sensor or exciter each having at least one magnet, the magnet being in particular attached to a measuring tube, the coils of the sensor or exciter each having a winding area and a central area without turns in a cross section , and wherein the magnetic device and the coil device of an exciter or sensor interact with one another by means of magnetic fields, the measuring sensor having a carrier body, the carrier body being set up to hold the at least one measuring tube, the coil devices of the sensors and / or the coil device of the Exciter are each separately attached to the carrier body, the carrier body having at least one first natural frequency and the at least one measuring tube having at least one second natural frequency, the exciter being set up to operate the measuring tube in the region of at least one second natural frequency, the at least one first natural frequency from the at least one second to be excited
  • Natural frequency is different in pairs, an increase in amplitude of the carrier body in the region of the at least one second natural frequency of the measuring tube to be excited being smaller by a factor F than an increase in amplitude of the at least one measuring tube, where F is at least 1000, and in particular at least 5000, and preferably at least 10000.
  • Measuring tube vibrations contribute to the induction of electrical voltages in the coils.
  • the coil devices are arranged on a measuring tube side facing the carrier body.
  • the measuring tube can thus be easily removed or replaced without having to move the coil devices.
  • the at least one measuring tube is detachably attached to the carrier body by means of a measuring tube holder, the measuring tube holder having a coupling, the at least one measuring tube being able to be decoupled by means of a movement directed away from the carrier body.
  • a measuring tube vibration deflection has an oscillation direction, and the coil has a longitudinal axis, a scalar product of a vector parallel to the oscillation direction with a vector parallel to the longitudinal axis being zero.
  • the central region has a rectangular shape with a first side and with a second side, the first side having a first side length and the second side having a second side length, the ratio of the first side length to the second side length being greater than 3.25 and in particular greater than 3.5 and preferably greater than 3.75, the rectangular shape of the central region having a first side bisector belonging to the first side and a second side bisector belonging to the second side, the magnet device of a sensor or exciter having at least one magnet attached to at least one measuring tube has at least one magnetic side surface facing the coil device, the magnetic side surface being delimited by two opposing first magnetic edges and two opposing second magnetic edges, the magnetic side surface in a measuring tube in the rest position in ei When projected onto a coil cross-section, the second magnetic edges protrude into the central region along a direction of vibration of the measuring tube parallel to the second side, one of the second magnetic edges
  • the first magnetic edge facing the bisector is spaced from the second bisector, the measuring tube being set up to oscillate with an oscillation amplitude, the spacing being greater than half an oscillation amplitude, the first magnet edge facing the second bisector running in particular parallel to the second bisector.
  • a movement of a magnet along the short side can be registered and measured very precisely, in particular if the magnet has an extension in the region of the first side length along the first side.
  • a small movement of the magnet in comparison with conventional coil devices is then sufficient to cause a significant change in a magnetic flux through the coil and thus an induction of an electrical voltage in the coil.
  • the first side length is at least 3 millimeters and in particular at least 4 millimeters and preferably at least 5 millimeters and / or the first side length is at most 20 millimeters and in particular at most 15 millimeters and preferably at most 12 millimeters, and / or wherein the second side length is at least 0.3 millimeters and in particular at least 0.5 millimeters and preferably at least 1 millimeter and / or which is at most 5 millimeters and in particular at most 4 millimeters and preferably at most 3 millimeters.
  • the magnetic side surface is rectangular.
  • the second magnetic edge completely covers the winding area along the second magnetic edge in a measuring tube in the rest position.
  • a length of the first magnetic edge is at least 5% and in particular at least 10% and preferably at least 20% smaller than the first side length, or a length of the first magnetic edge is at least 50 micrometers and in particular at least 75 micrometers and preferably at least 100 micrometers smaller is as the first side length, and wherein the first magnetic edge facing the second side bisector is spaced from the winding region in the projection in a direction parallel to the second side bisector.
  • the magnetic side surface is perpendicular to a coil axis and is at a distance from the coil device of at least 20 micrometers and in particular at least 40 micrometers and preferably at least 50 micrometers, and / or wherein the magnetic side surface is at a distance of at most 200 micrometers and in particular from the coil device at most 150 microns and preferably at most 120 microns.
  • the magnet of a magnetic device has a horseshoe shape with a closed end and an open end, the open end being set up to encompass an associated coil device and to apply a magnetic field running parallel to a coil axis to the coil device, wherein the at least one measuring tube has a cross-sectional plane which assigns an inlet side and an outlet side to the measuring tube, the inlet side and the outlet side being mirror-symmetrical with respect to the cross-sectional plane, the coil axes of the coil devices being perpendicular to the cross-sectional plane.
  • the measuring sensor has at least one pair of measuring tubes, the measuring tubes of the pair being set up to oscillate against one another, at least one sensor and / or at least one exciter each having a coil device with a coil and a magnet device with at least two magnets, wherein at least one magnet is arranged on each measuring tube of the pair of measuring tubes.
  • the coil device has a printed circuit board with a plurality
  • Printed circuit board layers a plurality of printed circuit board layers each having a coil with a first coil end and a second coil end, the coils being electrically connected in series and / or parallel to one another, the coils of different printed circuit board layers generating constructively interfering magnetic fields when an electrical voltage is applied, wherein the coils each have a plurality of coil turns.
  • a galvanically parallel connection of the coils can mean a serial connection of the inductances of the coils.
  • a spatial arrangement of the inductors relative to one another is relevant for the type of interconnection of inductors.
  • the at least one coil each has at least 4, and in particular at least 5 and preferably at least 6 turns, and / or wherein a total number of turns of the at least one coil is at least 65, and in particular at least 70 and preferably at least 72.
  • the measuring sensor has two collectors, a first collector on an upstream side of the measuring sensor being set up to receive a medium flowing into the measuring sensor from a pipeline and to lead it to the inlet of the at least one measuring tube, a second collector being set up for this is to take up the medium emerging from the outlet of the at least one measuring tube and to lead it into the pipeline.
  • the measuring sensor has two process connections, in particular flanges, which are set up to connect the measuring sensor to a pipeline.
  • a measuring device includes:
  • a sensor according to the invention; an electronic measuring / operating circuit, wherein the electronic measuring / operating circuit is set up to operate the sensors and the exciter, and is connected to these by means of electrical connections, the at least one electrical connection using a cable guide to the electronic measuring / operating circuit is guided, wherein the electronic measuring / operating circuit is further configured to determine and provide flow measurement values and / or density measured values, the measuring device in particular having an electronics housing for housing the electronic measuring / operating circuit.
  • FIG. 1 outlines a measuring device 200 with a measuring sensor 100, the measuring sensor having two measuring tubes 110, which are held by a carrier body 120 of the measuring sensor.
  • the measuring tubes open into a first collector 131 on the inlet side and into a second collector 132 on the outlet side, the collectors 130 being set up to receive a medium flowing into the measuring sensor from a pipeline (not shown) and to distribute it evenly over the measuring tubes. Accordingly, the second collector is set up to take up the medium flowing out of the measuring tubes and to transfer them into the pipeline.
  • the sensor is connected to the process connections 140, in particular flanges 141
  • the sensor has a vibration exciter 1 1, which is set up to stimulate the measuring tubes to vibrate.
  • the measuring sensor additionally has two vibration sensors 10, which are set up to detect the vibrations of the measuring tubes.
  • the expert is not on the numbers of here
  • Measuring tubes, vibration exciters and vibration sensors limited.
  • the embodiment shown here is exemplary in these aspects.
  • the measuring device has an electronic measuring / operating circuit 210, which is set up to operate the vibration exciter and the vibration sensors, and to calculate and output mass flow and / or density measured values of the medium.
  • the electronic measuring / operating circuit is connected by means of electrical connections 220 to the vibration sensors and the vibration exciter.
  • the measuring device has an electronics housing 230 in which the electronic measuring / operating circuit is arranged. To determine the
  • the measuring device uses the Coriolis effect of the medium flowing through the measuring tubes, the flow characteristically influencing the measuring tube vibrations.
  • FIG. 2a shows a plan view of an advantageous coil device 1 according to the invention with a printed circuit board 2, which has a plurality of printed circuit board layers 3, each with a first side surface 3.1 and a second side surface 3.2.
  • a coil 4 with a first coil end 4.1 and a second coil end 4.2 is applied in the form of an electrically conductive interconnect 4.3 as shown here on a first side surface 3.1.
  • Further printed circuit board layers can have further coils, which are connected to one another by vias 7, for example, a first via 7.1 connecting first coil ends, and a second via 7.2 connecting second coil ends to one another, which would correspond to a parallel connection of coils.
  • a galvanically serial connection can also take place, wherein coil ends of adjacent coils are connected, for example, by plated-through holes, and where adjacent coils each have an opposite direction of rotation of their electrical conductor tracks. It is important that the coils of different circuit board layers generate constructively interfering magnetic fields when an electrical direct voltage is applied between the vias.
  • a galvanically serial connection can also take place, wherein coil ends of adjacent coils are connected, for example, by plated-through holes, and wherein adjacent coils each have an opposite direction of rotation of their electrical conductor tracks. The skilled person will set up a coil device according to his needs. The coil device has
  • the coil 4 has a winding area WB and a central area Z without turns, the central area taking a rectangular shape with two opposing first sides S1 and two opposing second sides S2.
  • the first sides S1 have a first side length and the second sides have a two side length, the ratio of the first side length to the second side length being greater than 2, and in particular greater than 3 and preferably greater than 3.5.
  • the first side length is for example at least 3 millimeters and in particular at least 4 millimeters and preferably at least 5 millimeters and / or at most 20 millimeters and in particular at most 15 millimeters and preferably at most 12 millimeters, the second
  • Side length is for example at least 0.3 millimeters and in particular at least 0.5
  • Millimeters and preferably at least 1 millimeter and / or at most 5 millimeters and in particular at most 4 millimeters and preferably at most 3 millimeters. Larger geometric
  • Coil dimensions improve a signal-to-noise ratio if a magnet used to induce electric fields in the coil has similar dimensions with respect to the first side. However, a magnet must not become too heavy so as not to influence the measuring tube vibrations too much. A specialist with experience in the construction of sensors according to the invention or
  • Measuring devices can estimate the maximum geometric dimensions of such a magnet and derive upper limits for the first or second side of the coil.
  • a coil according to the invention has at least 4 turns and preferably at least 6 turns as shown here.
  • the track width LB is less than 500 microns, and preferably less than 400 microns and in particular less than 300 microns.
  • a printed circuit board 3 can have several printed circuit board layers, wherein several printed circuit board layers each have a coil.
  • Printed circuit board layers are connected via plated-through holes 7.1, 7.2, so that the coils of different printed circuit board layers generate constructively interfering magnetic fields when an electrical voltage is applied between the plated-through holes.
  • a first via 7.1 can have first coil ends 4.1 and a second
  • Plating 7.2 Connect the second coil ends 4.2 of different coils to each other. This corresponds to a parallel connection of different coils.
  • adjacent coils can be connected to one another via adjacent coil ends, with a first coil end of an outer one Coil is connected to a contacting element 5, and wherein a second coil end of a further outer coil is connected to another contacting element, and wherein adjacent coil ends are connected by means of a via. This would correspond to a series connection of different coils.
  • a coil device preferably has at least 6, and preferably at least 8 and
  • a substrate forming a circuit board layer is preferably thinner than 200 micrometers and preferably thinner than 150 micrometers.
  • the substrate has, for example, the material DuPont 951.
  • the electrically conductive conductor track applied to the substrate has, for example, the material DuPont 614SR.
  • Different coils have an ohmic resistance of less than 50 ohms and in particular less than 40 ohms and preferably less than 30 ohms, deviations in the ohmic resistances of different coils less than 10 ohms, and in particular less than 5 ohms and preferably less than 2 ohms are.
  • FIG. 3 a) and b) outlines a comparison between an exemplary coil device 1 according to the invention, see FIG. 3 a), and a conventional coil arrangement 1, see FIG. 3 b).
  • a magnet device 9 with two magnets 9.1 is sketched as an example, wherein the magnets 9.1 are each attached to a measuring tube (not shown) and follow the opposite movements of the measuring tubes.
  • the rectangular central region Z of the coil device according to the invention has a first side S1 with a side length which side length is equal to a diameter of the round central region Z of the conventional coil arrangement.
  • the area of the rectangular central area is smaller than the area of the round central area.
  • a density of a medium or a mass flow of a medium through the measuring tube can thus be determined more precisely.
  • Fig. 4 outlines a plan view of a sensor with a coil device and with the
  • the magnets each have a magnetic side surface 9.2 facing the coil device, which is bordered by first magnetic edges 9.1 1 and second magnetic edges 9.12.
  • the distance of a first magnetic edge facing the second side bisector SH2 of the second side of the central region preferably has a minimum distance in the case of a measuring tube in the rest position of 30 microns, and in particular a minimum distance of 60 microns to the second bisector.
  • the first magnetic edge facing the second bisector is preferably parallel to the second bisector.
  • the magnetic side surface is advantageously, but not necessarily, rectangular.
  • the magnets 9.1 preferably completely cover the winding area WB along their second magnetic edges 9.12.
  • the first magnetic edges 9.11 have a smaller length than the first sides S1 of the
  • the magnets are preferably arranged symmetrically with respect to the first side bisector SH1 within the scope of the technical possibilities.
  • a measuring sensor can also have only one measuring tube, each with at least one magnet, by means of which an electrical voltage can be induced in the coil device.
  • FIG. 5 outlines a side view of a further exemplary coil device, the side view being able to be obtained by rotating the embodiment shown in FIG. 4 around the first bisector.
  • the magnet instead of a magnet with a magnet side surface facing the coil device, the magnet has an annular shape, so that two of the
  • Opposing side surfaces 9.2 facing the coil device act on the coil device in a limited area with an approximately spatially homogeneous magnetic field, the magnet encompassing the coil device.
  • FIG. 6 outlines a side view of a measuring tube 110 of a measuring sensor or measuring device with two vibration sensors 10 each comprising a coil device 1 according to the invention from a side view SA2, see FIG. 2, the coil devices according to the invention mechanically with the carrier body 120 by means of a holder H. are connected.
  • the measuring sensor can, for example, have two measuring tubes which are set up to oscillate against one another.
  • the carrier body has at least one first natural frequency
  • the at least one measuring tube has at least one second natural frequency
  • the exciter being set up to operate the measuring tube in the region of at least one second natural frequency, the at least one first natural frequency to be excited by the at least one second
  • Natural frequency is different in pairs, an increase in amplitude of the carrier body in the region of the at least one second natural frequency of the measuring tube to be excited being smaller by a factor F than an increase in amplitude of the at least one measuring tube, where F is at least 1000, and in particular at least 5000, and preferably at least 10000.
  • F is at least 1000, and in particular at least 5000, and preferably at least 10000.
  • the at least one second natural frequency can be in a frequency range from 150 Hz to 900 Hz, for example.
  • F is at least 1000, and in particular at least 5000, and preferably at least 10000.
  • a cross-sectional plane QE divides the at least one measuring tube into the inlet-side section EA and the outlet-side section AA.
  • the electrical connections 220 can be guided along the carrier body.
  • the arrangement of contacting elements according to the invention enables electrical connections of the same length and the same routing of the electrical connections.
  • the measuring sensor can have, for example, only one measuring tube, one
  • Magnet device of a respective sensor is attached to the measuring tube, and the associated
  • Coil device on the carrier body, or the measuring sensor can also have more than two measuring tubes.
  • the at least one measuring tube can have at least one bend or can also run in a straight line.
  • the applicability of the coil device is independent of a measuring tube geometry.
  • the at least one measuring tube is fastened to the carrier body by means of a fastening device 121 and can in particular be removed from the carrier body without having to remove the coil devices of the vibration sensors.
  • the magnetic devices can be arranged, for example, on a side of the coil devices 1 facing away from the carrier body.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un capteur de mesure d'un appareil de mesure destiné à détecter un débit massique ou une densité d'un milieu s'écoulant à travers au moins un tube de mesure du capteur de mesure. Le capteur comprend : le ou les tubes de mesure ; au moins un excitateur, lequel est conçu pour amener le ou les tubes de mesure en oscillation ; au moins deux capteurs, lesquels sont conçus pour détecter la déviation des oscillations au moins d'un tube de mesure, au moins un excitateur ainsi que les capteurs présentant respectivement un dispositif à bobine pourvu de respectivement au moins une bobine, ainsi que respectivement un dispositif magnétique, les dispositifs magnétiques étant mobiles par rapport au dispositif à bobine respectif, le dispositif magnétique d'un capteur ou excitateur présentant respectivement au moins un aimant, le capteur de mesure présentant un corps de support, lequel corps de support est conçu pour retenir le ou les tubes de mesure. L'invention est caractérisée en ce que les dispositifs à bobine des capteurs et/ou le dispositif à bobine de l'excitateur sont fixés respectivement séparément sur le corps de support.
EP19748518.8A 2018-08-16 2019-07-30 Capteur de mesure et appareil de mesure Withdrawn EP3837505A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018119941.4A DE102018119941A1 (de) 2018-08-16 2018-08-16 Messaufnehmer und Messgerät
PCT/EP2019/070469 WO2020035303A1 (fr) 2018-08-16 2019-07-30 Capteur de mesure et appareil de mesure

Publications (1)

Publication Number Publication Date
EP3837505A1 true EP3837505A1 (fr) 2021-06-23

Family

ID=67513514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19748518.8A Withdrawn EP3837505A1 (fr) 2018-08-16 2019-07-30 Capteur de mesure et appareil de mesure

Country Status (5)

Country Link
US (1) US20210341326A1 (fr)
EP (1) EP3837505A1 (fr)
CN (1) CN112567210A (fr)
DE (1) DE102018119941A1 (fr)
WO (1) WO2020035303A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018131742B4 (de) 2018-12-11 2022-12-01 Endress+Hauser Flowtec Ag Coriolis-Messaufnehmer eines Coriolis-Messgeräts und ein Coriolis-Messgerät
DE102020121681A1 (de) 2020-08-18 2022-02-24 Endress+Hauser Flowtec Ag Coriolis-Durchflussmessgerät
DE102020133614A1 (de) 2020-12-15 2022-06-15 Endress + Hauser Flowtec Ag Modulares Coriolis-Durchflussmessgerät
DE102021123415A1 (de) 2021-09-09 2023-03-09 Endress + Hauser Flowtec Ag Messaufnehmer zum Messen eines Massedurchflusses

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6138517A (en) * 1996-01-17 2000-10-31 Danfoss A/S Mass flowmeter with bidirectionally wound oscillation detector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756198A (en) * 1986-01-24 1988-07-12 Exac Corporation Sensor apparatus for mass flow rate measurement system
US5349872A (en) * 1993-08-20 1994-09-27 Micro Motion, Inc. Stationary coils for a coriolis effect mass flowmeter
US5854430A (en) * 1996-05-07 1998-12-29 Endress + Hauser Flowtec Ag Coriolis mass flow sensor
US7216549B2 (en) * 2004-11-04 2007-05-15 Endress + Hauser Flowtec Ag Vibration-type measurement transducer
DE102007062397A1 (de) * 2007-12-20 2009-06-25 Endress + Hauser Flowtec Ag Meßwandler vom Vibrationstyp
EP2938972B1 (fr) * 2012-12-30 2023-05-31 Endress+Hauser Flowtec AG Transducteur de type vibratoire ainsi que système de mesure formé avec celui-ci
DE102015120087B4 (de) * 2015-11-19 2025-12-24 Endress + Hauser Flowtec Ag Coriolis-Durchfluss- und/oder Coriolis-Dichtemessgerät mit einem Messaufnehmer vom Vibrationstyp und Verwendung des Coriolis-Durchfluss- und/oder Coriolis-Dichtemessgerätes
DE102015122146A1 (de) * 2015-12-17 2017-06-22 Endress+Hauser Flowtec Ag Coriolis-Massendurchflußmeßgerät für strömende Medien

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6138517A (en) * 1996-01-17 2000-10-31 Danfoss A/S Mass flowmeter with bidirectionally wound oscillation detector
EP0874975B1 (fr) * 1996-01-17 2007-03-07 Siemens Flow Instruments A/S Debitmetre massique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020035303A1 *

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CN112567210A (zh) 2021-03-26
DE102018119941A1 (de) 2020-02-20
WO2020035303A1 (fr) 2020-02-20
US20210341326A1 (en) 2021-11-04

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