Patents by Inventor Ebbe Gustaf Nyfors

Ebbe Gustaf Nyfors has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10359372
    Abstract: The present invention relates to a system for measuring conductivity in a multiphase fluid flow comprising a fraction of water, the system comprising a measuring section including means for emitting electromagnetic signals into a pipe containing said flow within at least one chosen frequency range and means for detecting resonant frequencies within said range. The measuring section comprising features for providing at least two resonanct frequencies within said at least one frequency range, the system also comprising means for based on at least a first resonant frequency and a first Q-factor related to the corresponding resonance peak as well as the Q-factor of a second resonance peak, calculating the conductivity of the water in said flow.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: July 23, 2019
    Assignee: Roxar Flow Measurement AS
    Inventor: Ebbe Gustaf Nyfors
  • Patent number: 10060869
    Abstract: The present invention relates to a system for measuring electrical characteristics of a fluid flowing through a section of a pipe, the system comprising a coaxial resonator, formed by an essentially coaxial insert in said pipe defining an annular volume between a chosen part of said insert and the pipe wall, said insert and pipe wall being made from an electrically conductive material, the system further comprising at least one antenna adapted to emit electromagnetic signals into and receive electromagnetic signals from said coaxial resonator, and means to measure the frequency response of said coaxial resonator within a frequency range including the waveguide mode TE11 of said coaxial resonator, The coaxial insert is mounted to the pipe wall through at least one support leg being positioned outside said annular volume, and one electrically conductive fin is positioned at least partially in the annular volume, said fin being positioned in a radial plane, said plane being different from the plane of said at le
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: August 28, 2018
    Assignee: Roxar Flow Measurement AS
    Inventor: Ebbe Gustaf Nyfors
  • Publication number: 20180113082
    Abstract: This invention relates to a system for measuring electrical characteristics of a multiphase fluid flow in a pipe, the system comprising an essentially coaxial insert in said flow defining an annular space between a chosen part of said insert and the pipe wall. The system including resonance measuring means including at least one first antenna, the resonance measuring means being adapted to transmit an electromagnetic signal into said volume within a frequency range comprising at least one predetermined resonance in said volume, the resonance measuring means also being adapted to measure the resonance properties in said volume, said resonance having an amplitude minimum in at least one known position in said volume and said first antenna positioned outside said known position of amplitude minimum.
    Type: Application
    Filed: June 14, 2016
    Publication date: April 26, 2018
    Applicant: Roxar Flow Measurement AS
    Inventor: Ebbe Gustaf NYFORS
  • Publication number: 20180045662
    Abstract: The present invention relates to a system for measuring electrical characteristics of a fluid flowing through a section of a pipe, the system comprising a coaxial resonator, formed by an essentially coaxial insert in said pipe defining an annular volume between a chosen part of said insert and the pipe wall, said insert and pipe wall being made from an electrically conductive material, the system further comprising at least one antenna adapted to emit electromagnetic signals into and receive electromagnetic signals from said coaxial resonator, and means to measure the frequency response of said coaxial resonator within a frequency range including the waveguide mode TE11 of said coaxial resonator, The coaxial insert is mounted to the pipe wall through at least one support leg being positioned outside said annular volume, and one electrically conductive fin is positioned at least partially in the annular volume, said fin being positioned in a radial plane, said plane being different from the plane of said at le
    Type: Application
    Filed: April 15, 2016
    Publication date: February 15, 2018
    Applicant: Roxar Flow Measurement AS
    Inventor: Ebbe Gustaf NYFORS
  • Publication number: 20170191977
    Abstract: The present invention relates to a sensor assembly for measuring dielectric properties in a hydrocarbon fluid flow in a pipe, especially measuring salinity of said flow, comprising a microwave cavity resonator being adapted to be positioned in the wall of said pipe, and being designed to operate at a chosen resonant frequency. The sensor assembly also comprises a metallic plate at a distance from said sensor, wherein the plate defines a waveguide enclosing the microwave cavity resonator, the waveguide being open along the axis of the pipe for allowing said flow to pass through, the waveguide having a cutoff frequency being higher than the resonant frequency of the microwave cavity resonator.
    Type: Application
    Filed: May 29, 2015
    Publication date: July 6, 2017
    Applicant: Roxar Flow Measurement As
    Inventor: Ebbe Gustaf NYFORS
  • Patent number: 9588071
    Abstract: A multiphase meter system including: transmitting and receiving antennas in the flow pipe, wherein the receiving antennas are at different distances from the transmitting antenna, and a control system configured to: apply an electromagnetic field to the transmitting antenna and receive signals from the receiving antenna induced in the fluid or the pipe by the transmission of the electromagnetic field; calculate a resonance quality of the signals received by at least one of the first and second receiver antennas; calculate composition or salinity of the fluid based on the resonance quality if the resonance quality is greater than a threshold value, and calculate composition or salinity of the fluid based on a transmission time difference of the signals received from the first receiver antenna and the signals received by the second receiver antenna if the resonance quality is below the threshold value.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: March 7, 2017
    Assignee: ROXAR FLOW MEASUREMENT AS
    Inventor: Ebbe Gustaf Nyfors
  • Publication number: 20150346117
    Abstract: The present invention relates to a system for measuring conductivity in a multiphase fluid flow comprising a fraction of water, the system comprising a measuring section including means for emitting electromagnetic signals into a pipe containing said flow within at least one chosen frequency range and means for detecting resonant frequencies within said range. The measuring section comprising features for providing at least two resonanct frequencies within said at least one frequency range, the system also comprising means for based on at least a first resonant frequency and a first Q-factor related to the corresponding resonance peak as well as the Q-factor of a second resonance peak, calculating the conductivity of the water in said flow.
    Type: Application
    Filed: February 3, 2014
    Publication date: December 3, 2015
    Applicant: Roxar Flow Measurement AS
    Inventor: Ebbe Gustaf NYFORS
  • Publication number: 20150115979
    Abstract: A multiphase meter system including: transmitting and receiving antennas in the flow pipe, wherein the receiving antennas are at different distances from the transmitting antenna, and a control system configured to: apply an electromagnetic field to the transmitting antenna and receive signals from the receiving antenna induced in the fluid or the pipe by the transmission of the electromagnetic field; calculate a resonance quality of the signals received by at least one of the first and second receiver antennas; calculate composition or salinity of the fluid based on the resonance quality if the resonance quality is greater than a threshold value, and calculate composition or salinity of the fluid based on a transmission time difference of the signals received from the first receiver antenna and the signals received by the second receiver antenna if the resonance quality is below the threshold value.
    Type: Application
    Filed: April 29, 2013
    Publication date: April 30, 2015
    Applicant: Rexar Flow Measurement AS
    Inventor: Ebbe Gustaf Nyfors
  • Patent number: 8966994
    Abstract: Method for monitoring a body inserted in pipe conducting a fluid flow, the body being positioned in a distance from the pipe wall providing a gap between the body and the pipe wall, the gap constituting an electromagnetic, e.g. microwave, resonator, at least one coupling probe being positioned close to said gap, the method comprising the steps of applying an electromagnetic signal, monitoring the frequency response of the resonator through the probe, and analyzing the frequency response to provide a measure of movements, e.g. vibrations induced by a turbulent flow, of the body. The invention also relates to an insert with support structure especially shaped to avoid influence on the resonance measurement.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: March 3, 2015
    Assignee: Roxar Flow Measurement AS
    Inventors: Roberto Gentile, Rune Sørhus, Ebbe Gustaf Nyfors
  • Patent number: 8570050
    Abstract: This invention relates to a measuring instrument for measurement of a flow (1) comprising—a dielectric resonator sensor (3) arranged in a pipeline (2), said resonator (3) having a surface (4) facing a flow volume, —a sensor drive unit (12) being coupled to said sensor (3) and which is adapted to provide a driving or excitation signal to said sensor (3) resulting in the excitation of an electromagnetic resonance in said sensor causing a fringing electromagnetic field (5) adjacent to said surface (4) facing said wet gas flow (1), —a recording unit (10) coupled to said sensor (3) and which is adapted to measure a resonance property of said sensor (3) while said wet gas flow (1) moves past said sensor surface (4), and—a processing unit (11) which is adapted to estimate a property of at least a part of said wet gas flow (1).
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: October 29, 2013
    Assignee: Roxar Flow Measurements AS
    Inventor: Ebbe Gustaf Nyfors
  • Publication number: 20120006430
    Abstract: Method for monitoring a body inserted in pipe conducting a fluid flow, the body being positioned in a distance from the pipe wall providing a gap between the body and the pipe wall, the gap constituting an electromagnetic, e.g. microwave, resonator, at least one coupling probe being positioned close to said gap, the method comprising the steps of applying an electro-magnetic signal monitoring the frequency response of the resonator through the probe, and analysing the frequency response to provide a measure of movements, e.g. vibrations induced by a turbulent flow, of the body. The invention also relates to an insert with support structure especially shaped to avoid influence on the resonance measurement.
    Type: Application
    Filed: April 6, 2010
    Publication date: January 12, 2012
    Inventors: Roberto Gentile, Rune Sørhus, Ebbe Gustaf Nyfors
  • Patent number: 7770469
    Abstract: A differential pressure (dP) measurement device for use in flow measurement including a first microwave resonator (1) having a flexible or yieldable part or member (4) deformable or yieldable when subject to a differential pressure in such a way as to alter a resonant frequency of said resonator, and an electronic unit (12, 14) which is coupled to the resonator (1), and where the electronic unit is adapted to produce an output depending on a resonant frequency of the resonator (1).
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: August 10, 2010
    Assignee: Roxar Flow Measurement AS
    Inventors: Ebbe Gustaf Nyfors, Per Hassel Sørensen
  • Publication number: 20100145636
    Abstract: This invention relates to a measuring instrument for measurement of a flow (1) comprising—a dielectric resonator sensor (3) arranged in a pipeline (2), said resonator (3) having a surface (4) facing a flow volume,—a sensor drive unit (12) being coupled to said sensor (3) and which is adapted to provide a driving or excitation signal to said sensor (3) resulting in the excitation of an electromagnetic resonance in said sensor causing a fringing electromagnetic field (5) adjacent to said surface (4) facing said wet gas flow (1),—a recording unit (10) coupled to said sensor (3) and which is adapted to measure a resonance property of said sensor (3) while said wet gas flow (1) moves past said sensor surface (4), and—a processing unit (11) which is adapted to estimate a property of at least a part of said wet gas flow (1).
    Type: Application
    Filed: January 11, 2008
    Publication date: June 10, 2010
    Applicant: ROXAR FLOW MEASUREMENT AS
    Inventor: Ebbe Gustaf Nyfors
  • Patent number: 7481118
    Abstract: An apparatus for obtaining information on the content and flow rate in a fluid flow, e.g. a mixture of oil and water flowing in, for example, a pipe, including means for conveying a flowing fluid, means for generating a differential pressure in said fluid, and means for measuring said differential pressure. Means for measuring a capacitance are provided including at least one electrode, and the differential pressure generating means is arranged substantially at the same position along the pipe as the electrode of the capacitance measuring means. Thereby the differential pressure generating means effectively defines an earth electrode for said capacitance measuring means. Means are provided for combining a result from said differential pressure measuring means with a result from said capacitance measuring means to thereby obtain information on the content and flow rate in a fluid flow.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: January 27, 2009
    Assignee: Roxar Flow Measurement AS
    Inventor: Ebbe Gustaf Nyfors
  • Publication number: 20090000393
    Abstract: There is provided a differential pressure (dP) measurement device for use in flow measurement comprising a first microwave resonator (1) having a flexible or yieldable part or member (4) deformable or yieldable when subject to a differential pressure in such a way as to alter a resonant frequency of said resonator, and an electronic unit (12, 14) which is coupled to said resonator (1), and where said electronic unit is adapted to produce an output depending on a resonant frequency of said resonator (1).
    Type: Application
    Filed: February 1, 2007
    Publication date: January 1, 2009
    Inventors: Ebbe Gustaf Nyfors, Per Hassel Sorensen
  • Publication number: 20080148867
    Abstract: An apparatus for obtaining information on the content and flow rate in a fluid flow, e.g. a mixture of oil and water flowing in, for example, a pipe, including means for conveying a flowing fluid, means for generating a differential pressure in said fluid, and means for measuring said differential pressure. Means for measuring a capacitance are provided including at least one electrode, and the differential pressure generating means is arranged substantially at the same position along the pipe as the electrode of the capacitance measuring means. Thereby the differential pressure generating means effectively defines an earth electrode for said capacitance measuring means. Means are provided for combining a result from said differential pressure measuring means with a result from said capacitance measuring means to thereby obtain information on the content and flow rate in a fluid flow.
    Type: Application
    Filed: January 26, 2006
    Publication date: June 26, 2008
    Applicant: ROXAR AS
    Inventor: Ebbe Gustaf Nyfors
  • Patent number: 7293471
    Abstract: The present invention is directed to a flow meter that obtains the individual flow rates of gas, liquid hydrocarbons, and water in a predominantly gas-containing flowing fluid mixture. The flow meter comprises a water content meter (7) that provides a signal representing a measure of the water content of said fluid. The flow meter also comprises a double differential pressure generating (3) and measuring (4) structure, denoted a DDP-unit (2), that provides two measurement signals (6A and 6B) representing two independent values of differential pressure (DP) in said fluid (1). In addition to the above, the meter also comprises a signal processing unit (8) having inputs (9A-C) for receiving the measurement signals and the water content signal, and a calculation module (10) which calculates values representing the volumetric flow rates of said gas, liquid hydrocarbons and water in said fluid.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: November 13, 2007
    Assignee: Roxar Flow Measurement AS
    Inventors: Øystein Lund Bø, Ebbe Gustaf Nyfors, Rune Sørhus