Patents Assigned to Endress + Hauser Flowtec AG
  • Patent number: 10770826
    Abstract: A pressure resistant adapter, for connecting a transmission line to a field device has a shell, insertable into a wall of a housing of the field device. The shell has an interior open to an interior of the housing and closed to the exterior by an end wall of the shell. An insert, installed in the shell, includes a base element and a projection protruding out of the shell through an opening in the end wall of the shell. The base element has a basal area greater than a basal area of the opening. A connection element is provided on an end of the projection protruding out from the shell, to which the transmission line is connectable, and at least one conductor extends through a window that is located in the base element adjoining the bore in the projection and opens to the interior of the housing.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: September 8, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Thierry Moser, Daniel Kollmer
  • Patent number: 10768034
    Abstract: The present disclosure relates to a measurement sensor of the vibrational type for measuring the density and/or the mass flow of a medium, including: two oscillators; an exciter for stimulating oscillator vibrations; and two vibration sensors, wherein the first oscillator includes first and second measuring tubes and a first resilient vibration coupler for coupling the measuring tubes, wherein the second oscillator includes third and fourth measuring tubes and a second resilient vibration coupler for coupling the third and fourth measuring tubes, wherein perpendicularly to a measuring tube transverse plane a measurement sensor longitudinal plane extends between the third and the fourth measuring tube, wherein the first and third measuring tube relative to a measurement sensor longitudinal plane are in mirror symmetry relative to one another, and wherein the second and fourth measuring tube relative to the measurement sensor longitudinal plane are in mirror symmetry relative to one another.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 8, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Hao Zhu, Alfred Rieder, Ennio Bitto, Gerhard Eckert
  • Patent number: 10768032
    Abstract: The present disclosure relates to a sensor for a thermal flow measuring device, to a thermal flow measuring device, as well as to a method for the manufacture of such a sensor. The sensor includes a sensor thimble, wherein a defined separation of a sensor element from a thimble floor of the sensor thimble is provided by spacers so that a temperature transfer between the sensor and a liquid flowing around the sensor is provided. Thermal contact between the thimble floor and the sensor element is provided by a solder layer.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 8, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Hanno Schultheis, Alexander Grün, Stephan Gaberthüel
  • Patent number: 10746581
    Abstract: An apparatus for monitoring at least one physical or chemical process variable, comprising at least one measurement branch and a compensation branch connected in parallel therewith for compensating the influence of at least one environmental parameter on the process variable and/or on the measuring of the process variable. The measurement branch includes at least one primary sensor unit and a primary electronics unit for signal registration, evaluation, and/or feeding. The compensation branch includes at least a secondary sensor unit and a secondary electronics unit. The secondary sensor unit is so embodied that it registers a physical or chemical variable characteristic for the at least one environmental parameter, wherein the secondary electronics unit is so embodied that it draws the required energy from the measurement branch, and that it produces from the characteristic physical or chemical variable a compensation signal, which it transmits to the primary electronics unit of the measuring branch.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: August 18, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Achim Wiest, Oliver Brumberg
  • Publication number: 20200244278
    Abstract: Disclosed is a field device of automation technology, comprising: a housing having a wall; a data transmission means arranged on an outside of the housing wall; and an electronic operating circuit arranged in a housing chamber and is adapted to operate the data transmission means, wherein the data transmission means and the electronic operating circuit are connected via an electrical signal line having a plurality of electrical conductors, wherein a first electrical conductor is adapted to lead a data signal and wherein at least a second electrical conductor is adapted to shield the first electrical conductor, wherein the signal line has an isolation device adapted to isolate a first signal line section galvanically from a second signal line section, wherein the isolation device includes an electromagnetically transparent plate having a first lateral surface and a second lateral surface parallel to the first lateral surface.
    Type: Application
    Filed: August 16, 2018
    Publication date: July 30, 2020
    Applicant: Endress+Hauser Flowtec AG
    Inventors: Lukas TANNER, Daniel KOLLMER, Werner TANNER, Marita PAETZOLD, Lüder BOSSE
  • Patent number: 10724879
    Abstract: A flow measuring device operating on the vortex counter principle, comprises: a measuring tube; a blockage in the form of a bluff body in the measuring tube for bringing about a Karman vortex street with flow dependent vortex frequency; a first pressure fluctuation measuring arrangement for registering vortex related pressure fluctuations and for providing signals dependent on pressure fluctuations; a second pressure fluctuation measuring arrangement for registering vortex related pressure fluctuations and for providing signals dependent on pressure fluctuations. The first pressure fluctuation measuring arrangement is spaced in the longitudinal direction of the measuring tube from the second pressure fluctuation measuring arrangement.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: July 28, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Vivek Kumar, Marc Hollmach
  • Patent number: 10724883
    Abstract: The invention relates to a method for ascertaining a physical parameter of a gas using a measuring transducer having a measuring tube for conveying the gas, wherein the measuring tube is excitable to execute bending oscillations of different modes and eigenfrequencies, the method includes: ascertaining the eigenfrequency of the f1-mode and f3-mode; ascertaining preliminary density values for the gas based on the eigenfrequencies of the f1-mode and f3-mode; ascertaining a value for the velocity of sound of the gas, and/or, dependent on the velocity of sound and the eigenfrequency of a mode, at least one correcting term and/or density error for the preliminary density value; and/or a correcting term for a preliminary mass flow value for determining a corrected mass flow measured value based on the first preliminary density value, the second preliminary density value, the eigenfrequencies of the f1-mode and f3-mode.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 28, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Hao Zhu, Alfred Rieder, Gerhard Eckert
  • Patent number: 10718648
    Abstract: A method for determining density and/or mass flow of a compressible medium with a measuring transducer of vibration-type having at least two oscillators, each including a pair of measuring tubes, wherein the pairs of measuring tubes are arranged for parallel flow, wherein the two oscillators have mutually independent oscillator oscillations with mutually differing eigenfrequencies for corresponding oscillation modes. The method includes steps of determining the values of the eigenfrequencies of at least two different oscillator oscillations, determining at least two preliminary density measured values based on the values of the eigenfrequencies, and determining a correction term for one of the preliminary density measured values and/or for a preliminary measured value of flow based on the preliminary density measured values and the values of the eigenfrequencies.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: July 21, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Hao Zhu, Alfred Rieder
  • Patent number: 10712189
    Abstract: A method serves for operating a measuring transducer of vibration-type having at least two oscillators, each of which is formed by a pair of measuring tubes, wherein the pairs of measuring tubes are arranged for parallel flow, wherein the two oscillators have mutually independent oscillator oscillations with mutually differing eigenfrequencies for corresponding oscillation modes. The method includes steps of determining a first value of a primary measurement variable, or of a variable derived therefrom, using the first oscillator, determining a second value of the primary measurement variable, or of a variable derived therefrom, using the second oscillator, checking an actual ratio between the first value and the second value by comparison with an expected ratio between the first value and the second value, and outputting a signal when the actual ratio does not correspond to the expected ratio.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: July 14, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Hao Zhu, Alfred Rieder
  • Patent number: 10704943
    Abstract: The present disclosure relates to a Coriolis mass flow meter including: a measuring tube; an one exciter for generating vibrations in the measuring tube; two sensors for detecting the vibrations in the measuring tube and for outputting associated sensor signals; and an operating and evaluating unit for determining a mass flow value of a medium in the measuring tube based on a phase difference or time difference between the sensor signals, wherein for Reynolds numbers below a Reynolds number threshold a cross-sensitivity to a viscosity of the medium correlates with a Stokes number, wherein the operating and evaluating unit is configured to determine a current value of the Stokes number for Reynolds numbers below the lower Reynolds number threshold and to compensate for the influence of the cross-sensitivity in the determining of the mass flow.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: July 7, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Vivek Kumar, Alfred Rieder, Simon Triebenbacher
  • Patent number: 10705055
    Abstract: A measuring transducer comprises two flow dividers having, in each case, two tubular chambers separated from one another and adapted for guiding in- and out flowing fluid, of which each has a chamber floor, in which are formed, in each case, two mutually spaced flow openings communicating with a lumen of the chamber, and as well as a tube arrangement having at least four measuring tubes connected to the flow dividers for guiding flowing fluid with parallel flow. Moreover, the measuring transducer comprises an electromechanical exciter mechanism for exciting mechanical oscillations of the measuring tubes as well as a sensor arrangement for registering oscillatory movements of the measuring tubes and for generating at least two oscillation measurement signals representing oscillations of at least one of the measuring tubes.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: July 7, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Hao Zhu, Alfred Rieder, Wolfgang Drahm, Michael Kirst
  • Patent number: 10677623
    Abstract: A measuring device for measuring flow and/or composition of a measured medium in a pipe or tube by registering an ultrasonic measurement signal includes a measurement transmitter and a connection adapter for mechanical securement of the measurement transmitter on the pipe or tube, in which the connection adapter has a longitudinal axis and the measuring device includes a measuring transducer element and at least one metal hose, wherein at least one signal transmission cable is arranged in the metal hose for signal transmission between the measurement transmitter and a sensor element, and wherein the metal hose mechanically connects the measuring transducer element with the connection adapter.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: June 9, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Andreas Berger, Gotthard Liehr, Michal Bezdek, Beat Kissling, Quirin Müller
  • Patent number: 10670433
    Abstract: A housing of a field device of measuring- and automation technology, comprising a housing body, which has at least two housing chambers, wherein the housing chambers are connected together by an opening. The opening is adapted to accommodate a circuit board which is held by at least one holder, wherein the circuit board is adapted to be populated with electronic components or assemblies. The opening is Ex-d sealed with a potting compound.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 2, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Nikolai Fink, Thierry Moser, Bjorn Larsson
  • Publication number: 20200166444
    Abstract: An apparatus for measuring viscosities of fluids is described, comprising: a measuring system (1) having at least one measuring tube (5), which in measurement operation is filled with a fluid or through which fluid is flowing, and which has at least one tube section (4, 7) excitable to execute oscillations; an exciter system (1) for exciting at least two wanted oscillation modes of different frequencies, at each of which at least one of the tube sections (4, 7) is excited to execute oscillations, especially resonant oscillations; a sensing system (3), which is embodied in such a manner that it determines for the wanted oscillation modes excited in measurement operation, in each case, a frequency and a damping, especially a frequency, an amplitude and a damping, of a resulting oscillation of at least one tube section (4, 7) excited to execute oscillations of one of the wanted oscillation modes, and an evaluation system (15), which is embodied in such a manner that it determines based on calibration data stored
    Type: Application
    Filed: June 20, 2018
    Publication date: May 28, 2020
    Applicant: ENDRESS+HAUSER FLOWTEC AG
    Inventors: Martin Josef ANKLIN, Christof HUBER
  • Patent number: 10641641
    Abstract: A method for ascertaining a characteristic variable for evaluating a measuring arrangement comprising a clamp-on, ultrasonic, flow measuring device and a pipe, on which the clamp-on, ultrasonic, flow measuring device is secured, and/or for evaluating measurement operation of such a measuring arrangement, characterized by the method steps as follows: A) providing characteristic values relative to an exciter signal produced by the clamp-on, ultrasonic, flow measuring device; B) providing sensor-specific data as regards acoustic properties of one or more ultrasonic transducers of the clamp-on, ultrasonic, flow measuring device C) inputting data relative to the pipe material and the pipe wall thickness, especially inputting such data by a user, and D) ascertaining the characteristic variable from the parameters and data of steps A-C based on a mathematical model, as well as a computer program product and a clamp-on, ultrasonic, flow measuring device.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 5, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Peter Ploss, Stefan J. Rupitsch, Michal Bezdek, Thomas Frohlich, Beat Kissling
  • Patent number: 10641635
    Abstract: A measuring arrangement for determining flow velocity of at least one liquid phase and/or a gas phase of a vapor or a fluid composed of a liquid and a gaseous phase or a supercritical fluid, comprising a measuring tube, on or in which at least one sensor element of at least a first flow measuring device is arranged for measuring the liquid phase or the gas phase, wherein the measuring tube has at least an inflow region and an outflow region, wherein between these two regions a central region is arranged, whose measuring tube cross section has a greater area than the area of the measuring tube cross section of the outflow region or of the inflow region, and method for ascertaining flow of phases of a vapor or of a fluid composed of a liquid and a gaseous phase, or a supercritical fluid.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 5, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Rainer Hocker, Oliver Popp
  • Patent number: 10634531
    Abstract: A measuring tube, especially a measuring tube for an ultrasonic, flow measuring device, which measuring tube has a measuring tube wall and at least in certain regions a basic form with rotational symmetry or polygonal cross section and a straight measuring tube axis. The measuring tube includes at least one functional area for positioning a reflector, on which an acoustic signal is reflected on a signal path, and the functional area is formed integrally from the measuring tube wall. The functional area defines in at least one sectional view a circular segment, which serves as support for a reflector or the functional areas has stops, whose distal ends define in at least one sectional view a circular segment, which serves as support for a reflector, as well as an ultrasonic, flow measuring device and a method for manufacture of a measuring tube.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: April 28, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Achim Wiest, Beat Kissling, Quirin Muller, Sascha Grunwald
  • Patent number: 10620026
    Abstract: The invention relates to an ultrasonic transducer with a housing, in which a transducer element for producing and detecting ultrasonic signals and an acoustic transformer are arranged, wherein the acoustic transformer is acoustically and mechanically coupled with the transducer element. The housing includes at least one housing body, which has at least one housing chamber with a housing wall, which housing wall at least partially surrounds the acoustic transformer, wherein the housing is acoustically and mechanically connected with a measuring tube wall or a container wall and wherein the acoustic transformer is connected or connectable mechanically with the housing via a lateral surface of the acoustic transformer by means of a first acoustic insulation, especially an annular first acoustic insulation.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 14, 2020
    Assignee: Endress+Hauser Flowtec AG
    Inventors: Pierre Ueberschlag, Andreas Berger, Michal Bezdek
  • Patent number: 10620083
    Abstract: Method for monitoring and/or checking a pressure device having a lumen surrounded by a wall for conveying and/or storing a fluid. For such purpose, the method comprises a step of registering a strain, of the wall, by means of a strain gage, respectively a strain sensor formed therewith, affixed outwardly on the wall, for ascertaining a strain value representing the strain of the wall, as well as a step of using the strain value for ascertaining damage to the wall, as a result of plastic deformation of the wall and/or as a result of wear of the wall. A measuring system of the invention comprises supplementally to the pressure device at least one strain sensor affixed on a wall segment of the wall for producing a strain signal dependent on a time variable strain, of the wall segment as well as a transmitter electronics electrically coupled with the strain sensor.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: April 14, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Hao Zhu, Alfred Rieder, Holger Bernhard
  • Patent number: 10620024
    Abstract: A measuring tube for a magneto-inductive flow measuring device, comprising a support tube and a liner arranged in the support tube wherein the support tube has on its inner surface a surface structure, which prevents a rotary movement of the liner in the measuring tube, and a magneto-inductive flow measuring device with such a measuring tube.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: April 14, 2020
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventor: Frank Voigt