Patents Assigned to KROHNE Messtechnik GmbH
  • Patent number: 10378942
    Abstract: A method for operating a Coriolis mass flowmeter having at least one controller, at least one electric actuating device, at least one electromagnetic driving mechanism with a drive coil as oscillation generator, at least one measuring tube and at least one oscillation sensor involves excited oscillation of the measuring tube being detected by the oscillation sensor and emitted as at least one output signal and the electric actuating device causing the electromagnetic driving mechanism to produce oscillation of the measuring tube largely in resonance by the output signal of the oscillation sensor, the drive voltage at the drive coil, and phasing of the drive current in relation to the phasing of the output signal of the oscillation sensor being determined and a new target phasing for the drive voltage derived from the determinations and supplied to the controller to generate a drive voltage with the new target phasing.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: August 13, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventor: Johannes Kunze
  • Patent number: 10359410
    Abstract: A measuring rod (1) with a longitudinal axis (A) for insertion in the flow cross section of a tube and for the verification of a flowing medium in this tube having at least one first sender unit (2) for the transmission of a first acoustic or electromagnetic measuring signal (3) and at least one first receiver unit (4) for receiving the first measuring signal, wherein the first sender unit (2) and the first receiver unit (4) define a measuring section, wherein the first sender unit (2) is arranged in such a manner that the first measuring signal (3) crosses the measuring section and wherein the first receiver unit (4) is arranged in such a manner that it, at least during operation without flow, receives the first measuring signal (3) after crossing the measuring section.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 23, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventors: Jan Drenthen, Michael Deilmann, Michael Vogt, Thomas Musch, Stephan Neuburger
  • Publication number: 20190219436
    Abstract: A fill level measuring device having at least one transmitting and receiving unit, a measuring antenna with a first supply element for transmitting and receiving an electromagnetic measurement signal and at least one dielectric body for guiding and/or shaping the waves of the measurement signal, and a communication antenna. The communication antenna has at least one second supply element for wireless transmission and for receiving an electromagnetic communication signal. To provide a fill level measuring device that can be used particularly flexibly, the first supply element and the second supply element are arranged inside the dielectric body so that the dielectric body is able to guide and/or shape the measurement signal and the communication signal.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 18, 2019
    Applicant: KROHNE Messtechnik GmbH
    Inventors: Christoph Schmits, Matthias Linkies, Charalambos Ouzounis, Christian Schulz
  • Publication number: 20190220600
    Abstract: An electrical apparatus includes a secured functional unit, an unsecured functional unit and a supply device. The secured functional unit has a first interface device for secure communication and a control unit, and the unsecured functional unit has a second interface device for non-secure communication. The secured functional unit and the unsecured functional unit are designed for communicating with one another. The supply device further includes a supply unit. A first power path for supplying the secured functional unit is arranged between the supply unit and the secured functional unit, and a second power path for supplying the secured functional unit with electrical energy from the supply unit is arranged between the supply unit and the unsecured functional unit. A switch is arranged in the second power path. A second power path in the switch is looped in the first switching state and disconnected in the second switching state.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Applicant: KROHNE Messtechnik GmbH
    Inventor: Holger Glasmachers
  • Patent number: 10337901
    Abstract: A method for operating a Coriolis mass flowmeter that has at least one measuring tube with medium flowing through it involves exciting the measuring tube excited to oscillation, detecting the oscillations of the measuring tube and determining the density of the medium. Detection of the state and a change in the state of a Coriolis mass flowmeter is achieved by determining a calibration temperature and a calibration density sensitivity of the Coriolis mass flowmeter using the detected oscillations, at a temperature differing from the calibration temperature, and a density sensitivity of the flowmeter determined using the detected oscillations. A measurement rate of change of the density sensitivity is determined and a forecast rate of change of the density sensitivity is calculated using a forecast algorithm, and at a given deviation of the measurement rate of change from the forecast rate of change rp, a deviation signal is generated.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: July 2, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventors: Kourosh Kolahi, Johannes Kunze, Ralf Storm
  • Patent number: 10337858
    Abstract: Described is a device for detecting a surface of bulk materials, the device including: a transmitter unit having a radiation direction for transmitting a measuring signal, a receiver unit for receiving a measuring signal reflected on the surface of the bulk material, a control and evaluation unit for controlling the alignment of the radiation direction and for evaluating the received measuring signal, and an alignment arrangement for aligning the transmitter unit. The alignment arrangement includes at least one connecting element for connection to the transmitter unit, at least one bearing element, and at least one positioning member. The connecting element is pivotably connected to the bearing element via the positioning member. The alignment of the transmitter unit can be changed by the positioning member. The positioning member includes a shape memory element that actively changes its shape under variations of an influencing parameter.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: July 2, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventors: Michael Gerding, Michael Deilmann, Mattias Linkies, Almir Adrovic, Thomas Convent
  • Patent number: 10330517
    Abstract: A method for operating a contactless ultrasound or radar fill level measuring device having at least one open distribution transmitter, at least one receiver and at least one evaluation unit having the following steps: emitting a transmitter signal by the transmitter, receiving a reflection signal reflected on a reflector by the receiver, evaluating the transmitter signal and/or the reflection signal with the evaluation unit which identifies a frequency shift between the transmitter signal and the reflection signal. By evaluating the determined frequency shift or a variable derived from the determined frequency shift, a filling event is detected, in which a filling stream at least partially passes through the transmitter signal. Furthermore, a contactless ultrasound or radar fill level measuring device which performs this method.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 25, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventor: Michael Gerding
  • Patent number: 10295388
    Abstract: Described and shown is a method for operating a Coriolis mass flowmeter (1) having at least one measuring tube (2), an oscillation exciting device (3) for exciting the measuring tube (2) to an oscillation (4), at least a first oscillation sensor (5) and a second oscillation sensor (6) and at least a first sensor signal path and a second sensor signal path. The object of the invention is to provide a method in which the measuring accuracy is increased compared to the prior art.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: May 21, 2019
    Assignee: KROHNE Messtechnik GmbH
    Inventors: Alexander Erkelenz, Ralf Storm
  • Patent number: 10257707
    Abstract: A method for providing safe access of a mobile control unit (1) to a field device (2), wherein, in particular, the field device is protected against unauthorized access via a mobile control unit is achieved in that a connection for transmitting data is established between the mobile control unit (1) and the field device (2), that access data for access is exchanged, that a comparison is made between the access data and stored comparison data and a comparison result is generated, and that access of the mobile control unit (1) to the field device (1) is permitted based on the comparison result.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 9, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventors: Christoph Spiegel, Markus Dabrowski, Rene Keimling, Christian Hansen
  • Patent number: 10247754
    Abstract: A measuring device (1) for determining a measured variable has a sensor device (2) that generates at least one primary signal depending on the measured variable to be determined, an electronics device (3), a transition section (4) located between the sensor device (2) and the electronics device (3), an interface (5) arranged in the transition section (4) for transmitting energy and/or signals and having at least one signal line (7) between the sensor device (2) and the electronics device (3) are provided. To provide a measuring device that has an interface for transmitting signals or energy, which is easier to access than in the measuring device of the prior art, the interface (5) and the signal line (7) can be reversibly connected for transmitting signals to one another.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 2, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventor: Stephan Neuburger
  • Patent number: 10236577
    Abstract: An antenna for a level meter and a method for operating such an antenna. The antenna has an antenna housing, at least one supply element and at least one lens, the lens having at least first and second lens surfaces. The supply element guides coupled electromagnetic radiation and emits electromagnetic radiation in the direction of the first lens surface. The electromagnetic radiation received via the first lens surface can be relayed and emitted via the second lens surface. The lens is formed at least in part of a porous material, wherein the porous material connects the first lens surface and the second lens surface to one another, and a flushing device is provided for impinging the lens with a medium that passes through the porous material and through the second lens surface via the first lens surface.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 19, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventors: Mathias Linkies, Almir Adrovic
  • Patent number: 10234882
    Abstract: An electrical function group with a control device and a first voltage regulator, the control device having a supply voltage input, the first voltage regulator having a first supply voltage input and a first supply voltage output and being designed for connection to a supply voltage source via the first supply voltage input and to supply the control device via the first supply voltage output, the first supply voltage output and the supply voltage input being connected together. A second voltage regulator is also provided having a second supply voltage input and a second supply voltage output, the second voltage regulator being designed to be connected to the supply voltage source via the second supply voltage input and to supply the first voltage regulator and the control device via the second supply voltage output, the second supply voltage output and the first supply voltage input being connected to one another.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: March 19, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventor: Wilhelm Florin
  • Patent number: 10234485
    Abstract: A measuring arrangement for determining at least one measured variable with a sensor device (2), a signal outlet for outputting of an output signal and a current-adjusting device for adjusting the current of the output signal provides a measuring arrangement whose power consumption is at a maximum for preferably all states of operation. The object is obtained the measuring arrangement that a load current device and a regulating device are provided. Here, the regulating device controls the load current device based on a voltage drop via the current-adjusting device (4).
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: March 19, 2019
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventor: Steffen Dymek
  • Patent number: 10215607
    Abstract: Described and shown is a method for operating a flowmeter (1) having a measuring tube (2), wherein the flow (d) of a medium (4) through the measuring tube (2) is measured. A continuous dwell time of the measured flow (d) greater than or equal to a flow threshold (ds) is assigned to a flow interval (?tD,1, ?tD,2) and a flow volume (V1, V2) is determined from the measured flow (d) in the flow interval (?tD,1, ?tD,2). In each case, a continuous dwell time of the measured flow (d) less than the flow threshold (ds) is assigned to a zero flow interval (?tN,1). In each case, a deviation volume of the flow volume (V1, V2) in one of the flow intervals (?tD,1, ?tD,2) from a reference flow volume is determined and the deviation volume is compared to a threshold deviation volume.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: February 26, 2019
    Assignee: KROHNE Messtechnik GmbH
    Inventors: Helmut Brockhaus, Markus Dabrowski, Wilhelm Florin
  • Publication number: 20190014391
    Abstract: A measuring device with at least one sensor and at least one transmitter housing, the transmitter housing having at least one terminal space and an electronics space adjacent to the terminal space and connected via a partition wall, wherein at least a first electronic device for connecting supply and/or I/O lines is arranged in the terminal space and at least a second electronic device is arranged in the electronics space with electronics for controlling the sensor. The first and second electronic devices are electrically conductively connected to one another via a contacting unit. The second electronic device has a terminal unit which is connected to the contacting unit via a plug connection hat has a joining direction. The terminal unit is fixedly arranged in the joining direction and to float perpendicular to the joining direction such that it adapts to the position of the contacting unit when connecting to the contacting unit.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 10, 2019
    Applicant: KROHNE Messtechnik GmbH
    Inventors: Helmut Brockhaus, Achim Matt
  • Publication number: 20190011295
    Abstract: A measuring device with at least one sensor and at least one transmitter housing, wherein the transmitter housing has at least one terminal space and an electronics space adjacent to the terminal space and connected via a partition wall, wherein at least a first electronic device for the connection of supply and/or I/O lines is arranged in the terminal space and wherein at least a second electronic device is arranged in the electronics space with electronics for controlling the sensor, wherein the first electronic device and the second electronic device are electrically conductively connected to one another via a contacting unit, wherein the contacting unit is removably inserted into a recess of the partition wall. The A measuring device that is simple to produce and whose components can be particularly easily replaced is achieved by the contacting unit being firmly connected to the first electronic device.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 10, 2019
    Applicant: KROHNE Messtechnik GmbH
    Inventors: Alexander Erkelenz, Achim Matt
  • Patent number: 10161867
    Abstract: A method for determining a property of a medium, wherein an excitation signal is generated and transmitted into the medium, a measuring signal is generated from the excitation signal transmitted into the medium, the measuring signal is measured, an amplitude of the excitation signal and an amplitude of the measuring signal are determined, and the property of the medium is determined using the amplitude of the excitation signal and the amplitude of the measuring signal. To provide a method in which the accuracy of determination of the property of the medium is improved, the amplitude of the excitation signal is determined by digitizing the excitation signal and applying a lock-in method to the digitized excitation signal and determining the amplitude of the measuring signal by digitizing the measuring signal and applying the lock-in method to the digitized measuring signal.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: December 25, 2018
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventors: Holger Glasmachers, Edin Andelic, Andreas Schwaner
  • Publication number: 20180356267
    Abstract: A magnetic-inductive flowmeter for measuring the flow of a conductive medium having a measuring tube, a magnetic field generator, a magnetic circuit device for guiding the measuring magnetic field, electrodes for detecting a flow-dependent electrical measuring voltage when the conductive medium flows through the measuring tube, and an electronic control and evaluation unit, and a method for operating the magnetic-inductive flowmeter. To make the magnetic-inductive flowmeter which smaller and cheaper, a sensor for detecting a physical disturbance variable acting on the magnetic circuit device is arranged on the magnetic circuit device, wherein the measuring magnetic field is influenced by the physical disturbance variable and wherein the control and evaluation unit is designed such that it detects and signals an exceeding or falling below of a pre-definable limit value of the physical disturbance variable and/or performs a correction of the effect of the physical disturbance variable on the flow measurement.
    Type: Application
    Filed: June 11, 2018
    Publication date: December 13, 2018
    Applicant: KROHNE Messtechnik GmbH
    Inventors: Helmut Brockhaus, Wilhelm Florin
  • Patent number: 10151728
    Abstract: A method for operating a resonant measurement system has at least one: adjustment device, electric actuation device, electromagnetic vibration generator, vibrating element, and vibration recorder. The adjustment device generates an output signal to trigger the electric actuation device, the electric actuation device provides an electric excitation signal to the electromagnetic drive, the electromagnetic drive excites the vibrating element to the same vibration in at least one normal mode, and the excited vibration is sensed by the vibration recorder and is output as an output signal. To approach, maintain and readjust a resonant point as an operating point of the resonant measurement system, the phase difference between the output signal of the vibration recorder and the adjustment device output signal is acquired, an adjustment deviation is calculated from a predefined phase difference and the acquired phase difference, and the adjustment deviation provided to the adjustment device as an input signal.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: December 11, 2018
    Assignee: KROHNE MESSTECHNIK GMBH
    Inventors: Kourosh Kolahi, Ralf Storm, Andreas Poremba
  • Publication number: 20180352436
    Abstract: A method for secure communication with a field measuring device of process measuring technology is described and shown. Upon contact by an external communication means with a web server via a communication interface, a first authenticity check of an external communication means is carried out by the field measuring device and a second authenticity check of the external communication means is carried out. After successful completion of the first authenticity check and the second authenticity check, further communication of the external communication means with the web server is authorized by the field measuring device.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Applicant: KROHNE Messtechnik GmbH
    Inventor: Christoph Spiegel