Patents Assigned to Flowtec AG
  • Patent number: 8340921
    Abstract: A measuring arrangement of the invention includes: At least one measuring device, which generates, repeatedly during operation, measured values, especially digital, measured values, representing the at least one measured variable to be registered; as well as an electronic data processing system superordinated to the at least one measuring device, especially a data processing system which is spatially distributed and/or spatially remote from the measuring device. Measuring device and data processing system are connected together by means of at least two line-pairs, through each of which an electrical current flows, at least at times, during operation. According to the invention, the measuring device transmits the internally generated, measured values to the data processing system via both line-pairs. In this way, it is then possible to transmit a plurality of measured values simultaneously, when each of the two line-pairs is embodied as part of a two-conductor current-loop.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: December 25, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Jiri Karbula, Robert Lalla, Gernot Engstler
  • Patent number: 8336396
    Abstract: A measuring transducer has a transducer housing, has a transducer housing, having a housing end is formed by means of, a flow divider having exactly four flow openings and an outlet-side, housing end is formed by means of, a flow divider having exactly four flow openings, and four straight, measuring tubes connected to the flow dividers. Each measuring tube opens into one of the flow openings and with an outlet-side, measuring tube end into one of the flow openings of the outlet-side, flow divider. Also included is an electromechanical exciter mechanism embodied, so that the measuring tubes are excitable pairwise to execute opposite phase bending oscillations in, in each case, a shared imaginary plane of oscillation (XZ1, XZ2).
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 25, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Alfred Rieder, Martin Anklin, Christof Huber
  • Patent number: 8333121
    Abstract: A measuring system comprises: a measuring transducer, through which medium flows and which produces oscillatory signals dependent on medium viscosity and/or a Reynolds number of the flowing medium; and transmitter electronics for driving the measuring transducer and for evaluating oscillatory signals. The measuring transducer includes: four, mutually spaced, flow openings; an outlet-side flow divider with four, mutually spaced, flow openings; four, mutually parallel, straight, measuring tubes for conveying flowing medium, connected to the flow dividers electromechanical exciter mechanism.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 18, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Alfred Rieder, Martin Anklin, Christof Huber, Michael Kirst
  • Patent number: 8333120
    Abstract: A measuring transducer comprises: a transducer housing, an inlet-side, flow divider having exactly four spaced flow openings and an outlet-side, housing end by means of an outlet-side, flow divider having exactly four spaced flow openings; as well as exactly four, straight, measuring tubes connected to the flow dividers. Each of the four measuring tubes opens with an inlet-side, measuring tube end into one the flow openings and with an outlet-side, measuring tube end into one the flow openings of the outlet-side, flow divider. Additionally, the measuring transducer includes an electromechanical exciter mechanism, wherein the exciter mechanism is embodied in such a manner, that, therewith, the measuring tubes are excitable pairwise to execute opposite phase bending oscillations in, in each case, a shared imaginary plane of oscillation.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 18, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Alfred Rieder, Martin Anklin, Christof Huber
  • Patent number: 8333119
    Abstract: A measuring transducer includes: a transducer housing with an inlet-side flow divider having exactly four flow openings and an outlet-side flow divider having exactly four flow openings; as well as exactly four, straight, measuring tubes connected to the flow dividers. Each of the four measuring tubes opens into one the flow openings of the inlet-side flow divider and into one the flow openings of the outlet-side flow divide. Additionally, the measuring transducer includes an electromechanical exciter mechanism for producing and/or maintaining mechanical oscillations of the measuring tubes such that the measuring tubes are excitable pairwise to execute opposite phase bending oscillations in a shared imaginary plane of oscillation.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 18, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Martin Anklin-Imhof, Ennio Bitto, Christof Huber, Alfred Rieder
  • Patent number: 8327719
    Abstract: A measuring transducer comprising: a transducer housing, of which an inlet-side, housing end is formed by means of an inlet-side, flow divider having exactly four flow openings spaced, in each case, from one another and an outlet-side, housing end is formed by means of an outlet-side, flow divider having exactly four flow openings spaced, in each case, from one another; as well as exactly four, straight, measuring tubes connected to the flow dividers for guiding flowing medium along flow paths connected in parallel. The measuring transducer includes an electromechanical exciter mechanism for producing and/or maintaining mechanical oscillations of the four measuring tubes. The measuring tubes are excitable pairwise to execute opposite phase bending oscillations in, in each case, a shared imaginary plane of oscillation.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 11, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Martin Anklin-Imhof, Ennio Bitto, Christof Huber
  • Publication number: 20120310545
    Abstract: A measuring device electronics comprises a processor and two clock signal generators. One clock signal generator serves for producing a working clock signal, and also for producing a reference clock signal which is dependant on the working clock signal. The other clock signal generator, serves for producing a second reference clock signal, which is independent of the working clock signal. Based on the two independent reference clock signals, a frequency difference, can, to the extent that such is present, be ascertained during operation of the measuring device electronics or of the measuring device formed therewith. The frequency difference, represents a difference between the instantaneous clocking frequency of the first reference clock signal and the instantaneous clocking frequency of the second reference clock signal, and, in this respect, represents a measure for a deviation of an instantaneous clocking frequency, from the nominally predetermined clocking frequency, of the working clock signal.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Wolfgang Drahm, Gernot Engstler, Hans Pohl, Christian Matt, Robert Lalla, Matthias Brudermann
  • Patent number: 8324572
    Abstract: A radiometric measuring arrangement for measuring fill level of a fill substance in a container includes: arranged one above the other in measurement operation on a first side of the container, two or more radiometric radiators, which, in measurement operation, send radioactive radiation through the container, and which, in measurement operation, are arranged in a measuring position in the interior of the container in a pressure resistant, protective tube protruding laterally into the container; and, arranged on a second side of the container lying opposite to the radiators, at least one detector, which serves to receive radiation intensity penetrating through the container as a function of fill level and to convert such into a fill level dependent, electrical signal. The measuring arrangement permits achievement of a highly linear dependence of total detected radiation intensity on fill level.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: December 4, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alecsandru Nistor, Jochen Politt, Markus Bühler
  • Publication number: 20120297891
    Abstract: A magneto-inductive, flow measuring device for measuring flow of a measured medium through a measuring tube, comprising: at least a first coil assembly for accommodating a coil core is arranged in a first passageway. The coil core has a broadened part and a first stop, which is arranged between the measuring tube and the coil. The broadened part of the coil core in the assembled state of the first coil assembly lies against the first stop of the coil body and prevents shifting of the coil core relative to the coil body along the longitudinal axis of the coil core in a first direction facing away from the measuring tube. The coil body has a second stop, wherein the coil core is secured to the coil body with a securement element (which, in the assembled state, lies against the second stop of the coil body under a prestress along the longitudinal axis of the coil core between the first stop and the second stop of the coil body.
    Type: Application
    Filed: December 13, 2010
    Publication date: November 29, 2012
    Applicant: endress + Hauser Flowtec AG
    Inventors: Frank Voigt, Thomas Zingg, Gunther Bähj, Werner Wohlgemuth, Alexander Crovic
  • Patent number: 8316722
    Abstract: The measuring system comprises: a measuring transducer, through which medium flows during operation and which serves for producing oscillatory signals dependent on a viscosity of the flowing medium and/or a Reynolds number of the flowing medium; transmitter electronics for driven the measuring transducer and for evaluating oscillatory signals delivered by the measuring transducer. The measuring transducer includes: an inlet-side flow divider; an outlet-side flow divider; at least two, mutually parallel, straight, measuring tubes, connected to the flow dividers; as well as an electromechanical exciter mechanism for exciting and maintaining mechanical oscillations of the at least two measuring tubes. Each of the at least two measuring tubes opens with an inlet-side measuring tube end into a flow opening and with an outlet-side.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: November 27, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Alfred Rieder, Martin Anklin, Christof Huber, Michael Kirst
  • Patent number: 8314413
    Abstract: An optoelectronic device for transmission of an electrical signal of an input electrical current circuit to an output electrical current circuit galvanically isolated from the input electrical current circuit. The device includes a housing. The input electrical current circuit contains, for producing an optical signal, an optical transmitting unit, which is arranged in the housing. The output electrical current circuit contains, for receiving the optical signal, an optical receiving unit, which is arranged in the housing. At least one fuse mechanism is provided in the housing, which interrupts transmission of the electrical signal in the case of an electrical current flow, which lies above a predetermined electrical current level.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: November 20, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Mamadi Keita, Antoine Simon
  • Patent number: 8307719
    Abstract: An apparatus for measuring volume- or mass-flow of a medium in a pipeline. The apparatus includes: a measuring tube, through which medium flows in the direction of the measuring tube axis, wherein the measuring tube has, in stream direction of the medium, a first end region and a second end region; a magnet system, which a produces a magnetic field passing through the measuring tube essentially transversely to the measuring tube axis; at least one measuring electrode coupled with the medium and arranged in a region of the measuring tube lying essentially perpendicular to the magnetic field; and a control/evaluation unit, which delivers information concerning volume- or mass-flow of the medium in the measuring tube on the basis of a measurement voltage induced in the at least one measuring electrode. In order to keep costs for the magneto-inductive flow measuring device low, the measuring tube is embodied as one-piece and the first end region and the second end region of the measuring tube are flared.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 13, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Antonio Magliocca, Alexander Stünzi, Oliver Graf
  • Publication number: 20120279317
    Abstract: A measuring transducer comprises a transducer housing, of which an inlet-side housing end is formed by means of an inlet-side flow divider having eight, mutually spaced flow openings and an outlet-side housing end is formed by means of an outlet-side flow divider having eight, mutually spaced flow openings as well as a tube arrangement with eight bent measuring tubes for the conveying flowing medium, which, forming flow paths connected for parallel flow, are connected to the flow dividers, wherein each of the eight measuring tubes in each case opens with an inlet-side measuring tube end into one of the flow openings of the flow divider, and in each case opens with an outlet-side measuring tube end into one of the flow openings of the flow divider. An electro-mechanical exciter mechanism of the measuring transducer serves for producing and/or maintaining mechanical oscillations of the measuring tubes.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 8, 2012
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Peter Tschabold, Dieter Mundschin, Christian Schütze, Martin Anklin
  • Publication number: 20120266671
    Abstract: A measuring device for determining and/or monitoring a chemical and/or physical measured variable of process automation technology, wherein the measuring device includes at least one housing, and the housing has at least a first wall; which comprises a first material, and the housing has at least a second wall which comprises at least a second material. The second wall is secured to the first wall; and the outside of the first wall is at least partially surrounded by the second wall. The second wall is approximately fitted to the shape of the first wall, and the second wall is mechanically connected to the first wall.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 25, 2012
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Thierry Moser, Roland Unterseh, Christian Waltenspuel
  • Publication number: 20120266451
    Abstract: A thermal, flow measuring device for determining and/or monitoring the flow of a measured medium through a measuring tube. The thermal, flow measuring device includes: a first pin-shaped shell and at least a second pin-shaped shell; a first resistance thermometer and at least a second resistance thermometer. At least the first resistance thermometer is embodied so as to be heatable, wherein the resistance thermometers, in each case, have a first surface, and at least a second surface, which lies opposite the first surface. The first pin-shaped shell surrounds the first resistance thermometer, and the second pin-shaped shell surrounds the second resistance thermometer. The pin-shaped shells are fillable with a fill material. In each case, at least one spacer is placeable between the pin-shaped shell and the first surface of the resistance thermometer, and the second surface of the resistance thermometer is at least partially covered with fill material.
    Type: Application
    Filed: July 9, 2012
    Publication date: October 25, 2012
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Dirk BOGUHN, Jiri HOLOUBEK, Axel PFAU, Oliver POPP, Jiri POLAK
  • Publication number: 20120255369
    Abstract: A measuring transducer comprises a housing, and a tube arrangement formed by means of at least two tubes extending within the housing. At least one tube is embodied as a measuring tube serving for conveying flowing medium and another tube is mechanically connected with the tube by means of a coupling element to form an inlet-side coupling zone and by means of a coupling element. The coupling element is arranged equally far removed from the housing end. One coupling element has, about an imaginary longitudinal axis of the tube arrangement imaginarily connecting a center of mass of the coupling element and a center of mass of the other coupling element, with an angle of intersection equal to that with the other coupling element, a bending stiffness, which deviates from a bending stiffness of the other coupling element about said imaginary longitudinal axis of the tube arrangement.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 11, 2012
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolgang Drahm, Michael Wiesmann, Christof Huber, Martin Anklin
  • Publication number: 20120255371
    Abstract: The method serves for changing at least one eigenfrequency of a tube arrangement formed by means of at least one tube particularly, however, also for tuning the interim eigenfrequency to a desired eigenfrequency deviating therefrom and referred to as a target eigenfrequency. The tube has a tube wall, of metal and/or an at least sectionally circularly cylindrical, tube wall as well as a stiffening element of metal and/or a stiffening element of material connectable with the material of the tube by material bonding and/or a platelet shaped, stiffening element, placed on the tube wall and co-determining the interim eigenfrequency of the tube arrangement. For the purpose of changing the interim eigenfrequency, it is provided, that volume is removed from the stiffening element, for instance, by means of laser.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 11, 2012
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm, Michael Wiesmann
  • Publication number: 20120255370
    Abstract: A method for trimming a tube with at least one stiffening element placed on its tube wall to a target bending stiffness, wherein the tube has first an interim bending stiffness, which is greater than the target bending stiffness. For the purpose of reducing the interim bending stiffness of the tube to the target bending stiffness, it is provided in the method of the invention that volume of the stiffening element is removed, for instance, by means of a laser.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 11, 2012
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm, Michael Wiesmann
  • Patent number: 8281667
    Abstract: In a method for determining mass flow with a Coriolis mass flow measuring device arranged on a rotary filler, a correction value ?{dot over (m)} is ascertained, which is proportional to the RPM n of the rotary filler. This correction value is subtracted from the conventionally ascertained value {dot over (m)} of the mass flow. The corrected measured value {dot over (m)}corr is thus {dot over (m)}corr={dot over (m)}??{dot over (m)}.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: October 9, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Gerhard Eckert, Christian Matt, Matthias Altendorf
  • Patent number: 8282265
    Abstract: The apparatus comprises a first fluid line for conducting an intermittently flowing first fluid and a second fluid line for conducting an intermittently flowing second fluid, the two fluid lines being connected at a junction to a third fluid line, which forwards the two, particularly mixed, fluids. Further, the apparatus comprises a first flow adjuster, inserted in the first fluid line for setting a volumetric or mass flow rate of the first fluid, and a second flow adjuster, inserted in the second fluid line for setting a volumetric or mass flow rate of the second fluid, as well as apparatus for generating a first control signal, representing an instantaneous setting value for the first flow adjuster, and a second control signal, representing an instantaneous setting value for the second flow adjuster. To produce the fluid mixture, the first fluid and the second fluid are made to flow into the third fluid line alternately. The invention is particularly suited for mixing fluids having different viscosities.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: October 9, 2012
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Hartmut Breithhaupt