Patents Assigned to Measurement Limited
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Patent number: 11944943Abstract: A nozzle for injecting a first liquid mass into a stream of second liquid mass flowing within a pipe, comprising a first, outer, cylinder and second, inner, cylinder concentrically arranged about a nozzle axis, securing means for securing the nozzle to a wall of the pipe with the nozzle axis orthogonal to the pipe wall, the nozzle projecting into an interior of the pipe in use, duct means for receiving the first liquid mass and transporting it to the interior of the inner and outer cylinders, the inner cylinder comprising at least one hole arranged to expel liquid therethrough, and the outer cylinder comprising at least one hole arranged to expel liquid therethrough.Type: GrantFiled: June 29, 2022Date of Patent: April 2, 2024Assignee: Oil & Gas Measurement LimitedInventors: Wessenu Abegaz Maru, John Richard Waters
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Patent number: 11585681Abstract: The invention provides a method of driving a vibrating sensor in which the drive signal is combined with an amplitude modulated high frequency carrier. The signal is demodulated at a position adjacent to the component to be driven. This method may be applied to reducing cross-talk between drive and pick-up wire pairs and also to passing both drive and pickup signals, and two drive signals, down the same wire pair.Type: GrantFiled: March 16, 2018Date of Patent: February 21, 2023Assignee: Rosemount Measurement LimitedInventors: George Alexander MacDonald, Jonathan James Goff
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Publication number: 20220331756Abstract: A nozzle for injecting a first liquid mass into a stream of second liquid mass flowing within a pipe, comprising a first, outer, cylinder and second, inner, cylinder concentrically arranged about a nozzle axis, securing means for securing the nozzle to a wall of the pipe with the nozzle axis orthogonal to the pipe wall, the nozzle projecting into an interior of the pipe in use, duct means for receiving the first liquid mass and transporting it to the interior of the inner and outer cylinders, the inner cylinder comprising at least one hole arranged to expel liquid therethrough, and the outer cylinder comprising at least one hole arranged to expel liquid therethrough.Type: ApplicationFiled: June 29, 2022Publication date: October 20, 2022Applicant: Oil & Gas Measurement LimitedInventors: Wessenu Abegaz Maru, John Richard Waters
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Publication number: 20220018694Abstract: An invention relates to a device for measuring fluid flow in a pipe, in particular a device using ultrasound transducers for measuring fluid flow in a pipe, and a method for measuring fluid flow in a pipe using said device.Type: ApplicationFiled: July 7, 2021Publication date: January 20, 2022Applicant: OIL & GAS MEASUREMENT LIMITEDInventors: Mikhail GUREVICH, Terence COUSINS, Julien PORRE, Renaud BOURGA
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Patent number: 11162864Abstract: An ultrasonic detector suitable for mounting in a position for surveying an area for a source of airborne ultrasound, which detector comprises a sensor for detecting an ultrasonic sound signal, characterised by a transducer configured to produce a broadband ultrasonic sound signal for reception by said sensor enabling said ultrasonic detector to perform a self-test.Type: GrantFiled: September 24, 2018Date of Patent: November 2, 2021Assignee: Rosemount Measurement LimitedInventor: Darren Michael Rose
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Patent number: 10927829Abstract: A system comprising: a reservoir (14) for holding a liquid; a pump (20) arranged to pump the liquid out of the reservoir (14) or into the reservoir (14); a level sensor (26) configured to detect the level of the liquid in the reservoir (14) and to generate level data; a current monitor (28) configured to monitor the current drawn by the pump (20) and to generate current data; and a controller (30) configured to: receive level data and determine the static head from the level data, and generate head data from the static head; receive first current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a first period of operation of the pump (20); receive second current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a second period of operation of the pump (20), wherein the second current and head data is recorded when the liquid in the reservoir (14) is between a first liquid level and a second liquid level,Type: GrantFiled: February 15, 2016Date of Patent: February 23, 2021Assignee: Pulsar Process Measurement LimitedInventors: Keith Victor Beard, Sang Tran
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Patent number: 10712216Abstract: A method of estimating the torque of an axle of a running motor, comprising receiving data indicative of the total electrical active power, P, supplied to the motor, determining the electromechanical power, Pem, supplied to the axle using the data indicative of the total electrical active power, P, receiving data indicative of a rotor speed, nr, or rotor frequency, fr, of the axle, determining an angular rotor frequency, ?r, of the axle using the data indicative of rotor speed, nr, or rotor frequency, fr, of the axle, and determining electromechanical axle torque, Tem, using the determined electromechanical power, Pem, and the determined angular rotor frequency, ?r.Type: GrantFiled: October 21, 2015Date of Patent: July 14, 2020Assignee: Fluke Precision Measurement LimitedInventor: Gerardus Hermanus Bernardus Grashof
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Patent number: 10656005Abstract: The invention provides a level switch having a near field communications facility which allows at least some functions of the switch to be powered and the communication of data between the switch and a reader. Application and calibration information are examples of data that can be read to and from the switch, both in the factory and in the field.Type: GrantFiled: May 18, 2016Date of Patent: May 19, 2020Assignee: ROSEMOUNT MEASUREMENT LIMITEDInventors: Jeffery Allan Sears, Gregory Michael Leach
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Patent number: 10626863Abstract: A system comprising: a reservoir (14) for holding a liquid (1); a pump (20) arranged to pump the liquid (1) out of the reservoir (14) to a system outlet (24) or into the reservoir (14) from a system inlet; a pressure sensor (34) arranged between the reservoir (14) and the system outlet (24) or between the system inlet and the reservoir (14), the pressure sensor (34) configured to measure the discharge pressure (Pd) of the pump (20) and to generate discharge pressure data; a level sensor (26) configured to detect the level (1) of the liquid (1) in the reservoir (14) and to generate level data; a power monitor (28) configured to monitor the power consumed (p) by the pump (20) and to generate power data; a volume monitor configured to monitor the volume (V) of liquid (1) pumped by the pump (20) and to generate volume data; and a controller (30) configured to: receive the power data, the volume data, the discharge pressure data and the level data; process the discharge pressure data to determine a discharge headType: GrantFiled: February 15, 2016Date of Patent: April 21, 2020Assignee: Pulsar Process Measurement LimitedInventors: Keith Victor Beard, Sang Tran
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Patent number: 10571329Abstract: The invention describes a vibrating fork point level switch with multiple switching points.Type: GrantFiled: May 6, 2016Date of Patent: February 25, 2020Assignee: ROSEMOUNT MEASUREMENT LIMITEDInventors: Tadewos Tzegazeab, Rehan Azfar Ashraf, Gregory Michael Leach
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Patent number: 10379141Abstract: A method of classifying a signal waveform under test for appropriate numerical measurement includes acquiring waveform data indicative of the signal waveform under test, analyzing the waveform data, determining a signal waveform type from the analyzed waveform data, and activating an appropriate numerical measurement of the signal waveform under test based upon the determined signal waveform type. There is also provided a test and measurement instrument configured to carry out any of the disclosed methods.Type: GrantFiled: May 17, 2016Date of Patent: August 13, 2019Assignee: Fluke Precision Measurement LimitedInventors: Peter Deverson, Floris Broekema
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Publication number: 20190186980Abstract: The invention provides a method for configuring for use a vibrating fork level switch having a dry fork frequency DFF. The method involves establishing a wet fork frequency WFF and combining this with the DFF to configure the switch for use in media of differing densities.Type: ApplicationFiled: August 2, 2017Publication date: June 20, 2019Applicant: Rosemount Measurement LimitedInventors: Jeffery Allan SEARS, Jingdong ZHANG, Tadewos TZEGAZEAB, Kevin THOMAS
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Publication number: 20180290115Abstract: A nozzle for injecting a first liquid mass into a stream of second liquid mass flowing within a pipe, comprising a first, outer, cylinder and second, inner, cylinder concentrically arranged about a nozzle axis, securing means for securing the nozzle to a wall of the pipe with the nozzle axis orthogonal to the pipe wall, the nozzle projecting into an interior of the pipe in use, duct means for receiving the first liquid mass and transporting it to the interior of the inner and outer cylinders, the inner cylinder comprising at least one hole arranged to expel liquid therethrough, and the outer cylinder comprising at least one hole arranged to expel liquid therethrough.Type: ApplicationFiled: March 29, 2018Publication date: October 11, 2018Applicant: Oil & Gas Measurement LimitedInventors: Wessenu Abegaz Maru, John Richard Waters
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Patent number: 10082440Abstract: An ultrasonic detector suitable for mounting in a position for surveying an area for a source of airborne ultrasound, which detector comprises a sensor for detecting an ultrasonic sound signal, characterized by a transducer configured to produce a broadband ultrasonic sound signal for reception by said sensor enabling said ultrasonic detector to perform a self-test.Type: GrantFiled: January 30, 2015Date of Patent: September 25, 2018Assignee: ROSEMOUNT MEASUREMENT LIMITEDInventor: Darren Michael Rose
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Publication number: 20180164252Abstract: The invention provides a field device configured to be fitted through a single mounting aperture in a vessel. The device preferably includes a vibrating fork and a temperature sensor, the signals from which are processed within the device to provide an output indicative of whether a property of a medium in contact with the device is above or below a threshold. This output may be communicated wirelessly to a remote location. Other features are described.Type: ApplicationFiled: May 18, 2016Publication date: June 14, 2018Applicant: Rosemount Measurement LimitedInventors: Jeffery Allan Sears, Gregory Michael Leach, Marianne Elizabeth Williams, Rehan Azfar Ashraf
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Patent number: 9976921Abstract: A pressure sensor may comprise a socket, an upper CB, a lower CB, and a hex housing. The socket may include a plurality of co-molded electrical pin conductors extending axially from electrical connectors defined within a top end of the socket for receiving an external electrical cable to a bottom end of the socket. A top side of the upper CB may have electrical contacts configured to contact the electrical pin conductors. The lower CB may be connected to the upper CB by at least one structural member, and electrically coupled to the upper CB and to strain gauges coupled to a diaphragm. The hex housing may have an interior axial port extending from a bottom of said hex housing to a counterbore for holding the diaphragm, thereby exposing a first side of said diaphragm to the fluid within the axial port.Type: GrantFiled: July 31, 2017Date of Patent: May 22, 2018Assignee: Measurement LimitedInventor: Steven Petrucelli
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Patent number: 9970963Abstract: A temperature compensated current measurement device comprises a Rogowski coil having a terminating impedance arranged to adjust the attenuation of the coil to balance changes in coil sensitivity so that the output voltage indicative of measured current remains substantially unchanged, the terminating impedance having different values above and below a threshold frequency.Type: GrantFiled: February 1, 2013Date of Patent: May 15, 2018Assignee: Power Electronic Measurements LimitedInventors: William Frederick Ray, Christopher Rene Hewson, Joanne Marie Aberdeen
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Publication number: 20180066651Abstract: A system comprising: a reservoir (14) for holding a liquid (1); a pump (20) arranged to pump the liquid (1) out of the reservoir (14) to a system outlet (24) or into the reservoir (14) from a system inlet; a pressure sensor (34) arranged between the reservoir (14) and the system outlet (24) or between the system inlet and the reservoir (14), the pressure sensor (34) configured to measure the discharge pressure (Pd) of the pump (20) and to generate discharge pressure data; a level sensor (26) configured to detect the level (1) of the liquid (1) in the reservoir (14) and to generate level data; a power monitor (28) configured to monitor the power consumed (p) by the pump (20) and to generate power data; a volume monitor configured to monitor the volume (V) of liquid (1) pumped by the pump (20) and to generate volume data; and a controller (30) configured to: receive the power data, the volume data, the discharge pressure data and the level data; process the discharge pressure data to determine a discharge headType: ApplicationFiled: February 15, 2016Publication date: March 8, 2018Applicant: Pulsar Process Measurement LimitedInventors: Keith Victor Beard, Sang Tran
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Publication number: 20180045194Abstract: A system comprising: a reservoir (14) for holding a liquid; a pump (20) arranged to pump the liquid out of the reservoir (14) or into the reservoir (14); a level sensor (26) configured to detect the level of the liquid in the reservoir (14) and to generate level data; a current monitor (28) configured to monitor the current drawn by the pump (20) and to generate current data; and a controller (30) configured to: receive level data and determine the static head from the level data, and generate head data from the static head; receive first current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a first period of operation of the pump (20); receive second current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a second period of operation of the pump (20), wherein the second current and head data is recorded when the liquid in the reservoir (14) is between a first liquid level and a second liquid level,Type: ApplicationFiled: February 15, 2016Publication date: February 15, 2018Applicant: Pulsar Process Measurement LimitedInventors: Keith Victor Beard, Sang Tran
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Patent number: 9869605Abstract: An ultrasonic detector suitable for mounting in a position for surveying an area for a source of airborne ultrasound, which detector comprises a sensor for detecting an ultrasonic sound signal, characterised by a transducer configured to produce a broadband ultrasonic sound signal for reception by said sensor enabling said ultrasonic detector to perform a self-test.Type: GrantFiled: January 30, 2015Date of Patent: January 16, 2018Assignee: Rosemount Measurement LimitedInventors: Darren Michael Rose, Roger Thomas Hurrey