Patents Assigned to Flowtec AG
  • Publication number: 20110302511
    Abstract: A method for providing an operating menu (OM) for a field device (FD) of process automation technology, wherein the operating menu (OM) is displayed on a display unit of a servicing device (SD) remote from the field device (FD) by means of a web browser (WB). Settings of the field device (FD) are editable via the operating menu (OM); wherein a number of different operating menus (OM) are available by means of a web server (WS), especially a web server (WS) integrated in the field device (FD); and wherein one of the available operating menus (OM) is selected, especially by a user, via the web browser (WB).
    Type: Application
    Filed: May 25, 2011
    Publication date: December 8, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alain Chomik, Udo Fuchs, Pierre Harnist
  • Publication number: 20110271756
    Abstract: A driver circuit comprises: a voltage controller (UCD), which delivers a direct voltage (UPD) to a controller output; a direct voltage converter (DC/DC), to which is applied on the primary side the direct voltage (UPD) delivered from the voltage controller, and which converts such into a direct voltage (U?PD) available on the secondary side; and an end stage operated by means of said direct voltage (U?PD), which converts a control signal (sinexc—A) lying on a signal input into a driver signal (iexc) for the measuring transducer. The direct voltage (U?PD) available on the secondary side of the direct voltage converter (DC/DC) has, in such case, a magnitude which is always smaller than a magnitude of the direct voltage (UPD) delivered by the voltage controller, and the driver signal (iexc) has an electrical power (Pexc), which is higher than an electrical power (Psin) of the control signal (sinexc—A).
    Type: Application
    Filed: April 19, 2011
    Publication date: November 10, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Robert Lalla
  • Patent number: 8051722
    Abstract: An apparatus for measuring volume- or mass-flow of a medium in a pipeline. Included is a measuring tube, through which the medium flows in the direction of the longitudinal axis of the measuring tube; a magnet system, which is embodied in such a manner, that it produces a magnetic field passing through the measuring tube essentially transversely to the longitudinal axis of the measuring tube; at least one measuring electrode coupled with the medium, which is arranged in a bore in the wall of the measuring tube in a region lying essentially perpendicular to the magnetic field.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: November 8, 2011
    Assignee: Endress+ Hauser Flowtec AG
    Inventors: Frank Voigt, Günther Bähr
  • Publication number: 20110267076
    Abstract: A method for operating a magneto-inductive flow measuring device having a measuring tube, wherein an at least partially electrically-conductive measured material flows through the measuring tube. For determining flow, there is produced by means of at least one coil arrangement a clocked magnetic field, which at least partially passes through the measured material, wherein the magnetic field is produced by an exciter current, which flows through the coil arrangement. The magnetic field is operated with at least a first clocking, wherein, in a case in which the coil arrangement is free of exciter current, an electrical potential difference is sensed between the measured material and a reference potential by means of at least a first measuring electrode communicating with the measured material.
    Type: Application
    Filed: September 18, 2009
    Publication date: November 3, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Markus Rufenacht
  • Publication number: 20110265580
    Abstract: A measuring transducer comprises: a transducer housing, of which an inlet-side is formed by means of an inlet-side, flow divider having exactly four flow openings spaced from one another and an outlet-side formed by means of an outlet-side, flow divider having exactly four flow openings from one another; a tube arrangement having exactly four, curved, or bent, measuring tubes connected to the flow dividers for guiding flowing medium along flow paths connected in parallel. Each of the four measuring tubes opens with an inlet-side, measuring tube end into one of the flow openings of the flow divider and with an outlet-side, measuring tube end into one the flow openings of the flow divider. Two flow dividers are arranged in the measuring transducer. An electromechanical exciter mechanism is provided.
    Type: Application
    Filed: December 17, 2010
    Publication date: November 3, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Christof Huber, Ennio Bitto, Marcel Braun, Alfred Rieder, Christian Schutze
  • Patent number: 8047081
    Abstract: An apparatus for ascertaining, and/or monitoring, volume-or mass-flow of a medium flowing through a pipeline in the direction of the longitudinal axis of the pipeline. The apparatus includes: at least one ultrasonic sensor, which radiates/receives ultrasonic measuring signals at an angle of incidence/emergence into/out-of the pipeline; and a control/evaluation unit which provides, based on the ultrasonic measuring signals, information concerning volume- and/or mass-flow of the medium through the pipeline. The ultrasonic sensor includes at least one sound-producing element, a coupling shoe and a coupling adapter. The end region of the coupling adapter facing the coupling shoe has a securement mechanism for releasable securement of the coupling adapter to the coupling shoe. The end region of the coupling adapter facing the pipeline is embodied as a function of the pipeline in such a manner that it is form-fittingly securable to the pipeline.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: November 1, 2011
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Oliver Berberig, Andreas Berger, Patrick Oudoire, Achim Wiest
  • Publication number: 20110259123
    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: Application
    Filed: March 11, 2010
    Publication date: October 27, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Alfred Rieder, Martin Anklin, Christof Huber
  • Patent number: 8042410
    Abstract: An apparatus for measuring volume- or mass-flow of a medium flowing through a measuring tube in the direction of the measuring tube axis, and includes: a magnet system, which produces a magnetic field passing through the measuring tube essentially transversely to the measuring tube axis; at least one measuring electrode, which contacts the medium in a defined surface region; and a control/evaluation unit, which provides 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. At least the medium-contacting surface region of the at least one measuring electrode is manufactured of a chemically inert and electrochemically and mechanically resistant material.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: October 25, 2011
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Budmiger, Georg Szaloky
  • Patent number: 8046194
    Abstract: A method for predictive maintenance for a magneto-inductive flow-measuring device and/or to a method for determining electrical conductivity of a medium flowing through a magneto-inductive flow-measuring device, wherein the magneto-inductive flow-measuring device includes a magnet system, which produces a magnetic field passing through the measuring tube essentially transversely to a measuring tube axis; at least two measuring electrodes coupled with the medium, having a defined rest potential and being arranged in a region of the measuring tube lying essentially perpendicularly to the magnetic field; and a control/evaluation unit, which delivers information concerning volume- or mass-flow of the medium on the basis of measurement voltage induced in the measuring electrodes.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: October 25, 2011
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Heinz Rufer, Wolfgang Drahm, Frank Schmalzried
  • Publication number: 20110247430
    Abstract: A measuring arrangement for determining a chemical and/or physical, measured variable-especially a volume flow and/or mass flow-of a measured material flowing through a pipeline, wherein the measuring arrangement comprises a measuring transducer, wherein the measuring transducer includes at least one optical waveguide, which serves for producing, registering and/or transmitting measurement signals, and wherein the registering of the measuring signals in the optical waveguide occurs by means of a Fabry-Pérot sensor.
    Type: Application
    Filed: December 11, 2009
    Publication date: October 13, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Martin Hertel, Rainer Hocker
  • Publication number: 20110239780
    Abstract: A coupling element for an ultrasonic, flow measuring device, wherein the coupling element has a pedestal with a bearing surface, on which bearing surface a piezoelement is applied. The pedestal is an integral component of the coupling element.
    Type: Application
    Filed: July 10, 2008
    Publication date: October 6, 2011
    Applicant: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Andreas Berger, Quirin Muller, Achim Wiest
  • Patent number: 8024136
    Abstract: A method for signal processing of measurement signals of a vortex flow transducer for measuring flow of a medium through a measuring tube. The method is characterized by low needs as regards computing power and memory space. The transducer includes a bluff body arranged in the measuring tube and a sensor for registering pressure fluctuations arising at the bluff body and for converting such pressure fluctuations into an electrical measurement signal. In the method, at least a portion of the measurement signal is sampled and digitized, an autocorrelation of the digitized measurement signal is calculated, and the flow is derived on the basis of at least one characteristic of the autocorrelation.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: September 20, 2011
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Saso Jezernik, Ole Koudal, Rainer Höcker
  • Publication number: 20110219857
    Abstract: The viscometer provides a viscosity value (X?) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driven by an excitation assembly, the flow tube is vibrated so that friction forces are produced in the fluid. The viscometer further includes meter electronics which feed an excitation current (iexc) into the excitation assembly. By means of the meter electronics, a first internal intermediate value (X1) is formed, which corresponds with the excitation current (iexc) and thus represents the friction forces acting in the fluid. According to the invention, a second internal intermediate value (X2), representing inhomogeneities in the fluid, is generated in the meter electronics, which then determine the viscosity value (X?) using the two intermediate values (X1, X2).
    Type: Application
    Filed: May 26, 2011
    Publication date: September 15, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm
  • Publication number: 20110209526
    Abstract: Method and thermal, flow measuring device for determining at least one variable dependent on at least the chemical composition of a measured medium, wherein the measured medium has n components, wherein n is greater than or equal to two, wherein each mole fraction, volume fraction and/or mass fraction of m components of the medium is measured, wherein m is smaller than or equal to n minus one, wherein the mole fractions, volume fractions and/or mass fractions of the k components of the measured medium which are not measured, and wherein k is equal to n minus m, are established in such a manner, that the sum of the mole fractions, volume fractions and/or mass fractions of the n components amounts to one.
    Type: Application
    Filed: October 27, 2009
    Publication date: September 1, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Michel Wagner
  • Patent number: 8010312
    Abstract: A measuring system includes at least one temperature sensor placed at a temperature measuring point, to deliver at least one temperature measurement signal influenced by the local temperature of a medium to be measured. At least one pressure sensor is placed at a pressure measuring point, and delivers at least one pressure measurement signal influenced by the local pressure in the medium. At least one flow sensor is placed at a flow measuring point, and delivers at least one flow measurement signal influenced by the local flow parameter. Measuring electronics calculates, based on the temperature measurement signal, the pressure measurement signal, and the flow measurement signal, at least one density measured-value, representing, instantaneously, a local density of the medium at a virtual density measuring point, the virtual density measuring point being spaced from the pressure measuring point and/or from the temperature measuring point along the flow axis.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: August 30, 2011
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Rainer Höcker
  • Publication number: 20110197681
    Abstract: Measuring transducer of vibration-type for a fluid flowing in a pipeline. The measuring transducer includes, in such case, a curved measuring tube for conveying the fluid, a counteroscillator having two counteroscillator arms, which are arranged on both sides of the measuring tube, and which, in each case, essentially follow the curve of the measuring tube, and which are coupled to one another in such a manner, that, during operation, they oscillate in phase with one another, and which are affixed to the measuring tube on the inlet side and outlet sides for forming corresponding coupling zones. The measuring transducer also includes an exciter mechanism, via which, during operation, the measuring tube and the counteroscillator are excitable to oscillations of opposite phase to one another.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 18, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Rainer Lorenz, Michael Wiesmann
  • Patent number: 7992452
    Abstract: A measuring transducer of vibration type for registering, on the basis of the Coriolis principle, at least one measured variable of a medium flowing through a pipeline. The measuring transducer includes: a measuring tube, which is connectable with the pipeline via an inlet and an outlet, wherein the measuring tube includes a first measuring tube arc and a second measuring tube arc; an oscillation exciter for exciting oscillations of the measuring tube arcs; at least one oscillation sensor for registering resulting oscillations of the measuring tube arcs; and a transducer housing surrounding the measuring tube arcs. The measuring tube arcs are elastically coupled to the transducer housing. In this way, a robust and reliable measuring operation is guaranteed, which is little influenced by oscillatory in-couplings.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: August 9, 2011
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Martin Anklin-Imhof, Gerhard Eckert, Dieter Mundschin
  • Publication number: 20110187205
    Abstract: A circuit arrangement CA for supplying a field device F1 of automation technology includes a consumer circuit CC, a direct-voltage converter G and an input circuit IC having a 2-conductor connection CN. The input circuit IC includes a modulator unit M, which is connected with a current regulating circuit RC and the direct-voltage converter G. The modulator unit M so controls the direct-voltage converter G that an adjustable total current IS is carried by the 2-conductor connection CN. Use of the controlled direct-voltage converter G enables an optimum power transfer to the consumer circuit CC.
    Type: Application
    Filed: December 5, 2006
    Publication date: August 4, 2011
    Applicant: Endress +Hauser Flowtec AG
    Inventor: Jiri Karbula
  • Publication number: 20110179881
    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: Application
    Filed: August 31, 2007
    Publication date: July 28, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Gerhard Eckert, Christian Matt, Matthias Altendorf
  • Publication number: 20110174083
    Abstract: Measuring system (1) for determining and/or monitoring flow of a measured medium (25) through a measuring tube (2), wherein the measuring system (1) includes: At least one control/evaluation unit (8), which, based on ultrasonic measurement signals, or based on measurement data derived from the ultrasonic measurement signals, ascertains volume, and/or mass, flow of the measured medium (25) flowing in the measuring tube (2); and a sensor housing (3), which surrounds a first ultrasonic sensor (5) and at least a second ultrasonic sensor (6); wherein at least the first ultrasonic sensor (5) is seated shiftably in the sensor housing (3); wherein the measuring system (1) further includes a sensor holder (4), which is securable on the measuring tube (2) and includes a securement mechanism (9) for the releasable securement of the sensor housing (3) on the sensor holder (4); wherein the sensor housing (3) forms with the ultrasonic sensors (5, 6) a unit securable on the sensor holder (4) and releasable from the sensor h
    Type: Application
    Filed: July 7, 2009
    Publication date: July 21, 2011
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Andreas Berger, Achim Wiest