Patents by Inventor Matthew Joseph Rensing

Matthew Joseph Rensing 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: 10788348
    Abstract: A method and apparatus for a flowmeter (5) is provided. The method comprises the steps of placing a material in a flow tube (130, 130?) while exciting a vibration mode of the flow tube (130, 130?). Exciting the vibration mode of the flow tube (130, 130?) comprises the steps of periodically driving a first driver (180L) with a first signal and periodically driving a second driver (180R) with a second signal, wherein the second driver (180R) is driven essentially in phase with the first driver (180L), but wherein the first driver's (180L) drive amplitude modulated signal reaches a maximum amplitude when the second driver's (180R) drive modulated signal reaches a minimal amplitude, and the first driver's (180L) drive amplitude modulated signal reaches a minimum amplitude when the second driver's (180R) drive amplitude modulated signal reaches a maximum amplitude.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: September 29, 2020
    Assignee: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Christopher George Larsen, Timothy J. Cunningham, Stuart J. Shelley
  • Publication number: 20200264024
    Abstract: A vibratory meter (5, 1600) configured to predict and reduce noise in the vibratory meter (5, 1600). The vibratory meter (5, 1600) includes a sensor assembly (10, 1610) and a meter electronics (20, 1620) in communication with the sensor assembly (10, 1610). The meter electronics (20, 1620) is configured to provide a drive signal to a sensor assembly (10, 1610), receive a sensor signal from the sensor assembly (10, 1610) having one or more components, and generate a signal to be applied to one of the sensor signal and the drive signal to compensate for the one or more components.
    Type: Application
    Filed: September 21, 2017
    Publication date: August 20, 2020
    Applicant: Micro Motion, Inc.
    Inventors: Matthew Joseph RENSING, Christopher George LARSEN
  • Patent number: 10670446
    Abstract: A method for calibrating a flowmeter (5) transducer is provided comprising the steps of exciting a vibration mode of a flowmeter (5) flow tube (130, 130?) and ceasing to excite the vibration mode, wherein a free decay response of the flow tube (130, 130?) is measured. Amplitudes and phases of the free decay response at a drive frequency are extracted, and a strength of the transducer is calculated.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 2, 2020
    Assignee: Micro Motion, Inc.
    Inventor: Matthew Joseph Rensing
  • Publication number: 20200166395
    Abstract: A system (800) for minimizing a crest in a multi-tone drive signal in a vibratory meter (5) is provided. The system (800) includes a drive signal generator (810) configured to generate the multi-tone drive signal for the vibratory meter (5) and a drive signal detector (820). The drive signal detector (820) is configured to receive the multi-tone drive signal, determine a first maximum amplitude of the multi-tone drive signal having a component at a first phase, determine a second maximum amplitude of the multi-tone drive signal having the component at a second phase, and compare the first maximum amplitude and the second maximum amplitude.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 28, 2020
    Applicant: Micro Motion, Inc.
    Inventors: Timothy J. CUNNINGHAM, Matthew Joseph RENSING, Mark James BELL
  • Publication number: 20200149942
    Abstract: A meter electronics (20) having a notch filter (26) configured to filter a sensor signal from a sensor assembly (10) in a vibratory meter (5) is provided. The meter electronics (20) includes the notch filter (26) communicatively coupled to the sensor assembly (10). The meter electronics (20) is configured to receive the sensor signal from the sensor assembly (10), the sensor signal being comprised of a first component at a resonant frequency of the sensor assembly (10) and a second component at a non-resonant frequency and pass the first component and substantially attenuate the second component with the notch filter, wherein the first component is passed with substantially zero phase shift.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 14, 2020
    Applicant: Micro Motion, Inc.
    Inventors: Matthew Joseph RENSING, Timothy J. CUNNINGHAM
  • Publication number: 20200132529
    Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) configured to vibrate the flowmeter assembly (10) in a primary vibration mode using the first and second drivers (180L, 180R), determine first and second primary triode currents (230) of the first and second drivers (180L, 180R) for the primary vibration mode and determining first and second primary mode response voltages (231) generated by the first and second pickoff sensors (170L, 170R) for the primary vibration mode, generate a meter stiffness value (216) using the first and second primary mode currents (230) and the first and second primary mode response voltages (231), and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216).
    Type: Application
    Filed: January 2, 2020
    Publication date: April 30, 2020
    Applicant: Micro Motion, Inc.
    Inventors: Matthew Joseph RENSING, Christopher George LARSEN, Timothy J. CUNNINGHAM
  • Publication number: 20200109980
    Abstract: A system (800) for determining frequency spacings to prevent intermodulation distortion signal interference is provided. The system (800) includes a sensor assembly (810) and a meter verification module (820) communicatively coupled to the sensor assembly (810). The meter verification module (820) is configured to determine a frequency of a first signal to be applied to a sensor assembly (810) of a vibratory meter and set a demodulation window about the frequency of the first signal. The meter verification module (800) is also configured to determine a frequency of the second signal to be applied to the sensor assembly such that a frequency of an intermodulation distortion signal generated by the first signal and the second signal is outside the demodulation window.
    Type: Application
    Filed: June 14, 2017
    Publication date: April 9, 2020
    Applicant: Mocro Motion, Inc.
    Inventors: Matthew Joseph RENSING, Timothy J. CUNNINGHAM
  • Patent number: 10612954
    Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) configured to vibrate the flowmeter assembly (10) in a primary vibration mode using the first and second drivers (180L, 180R), determine first and second primary mode currents (230) of the first and second drivers (180L, 180R) for the primary vibration mode and determining first and second primary mode response voltages (231) generated by the first and second pickoff sensors (170L, 170R) for the primary vibration mode, generate a meter stiffness value (216) using the first and second primary mode currents (230) and the first and second primary mode response voltages (231), and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216).
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: April 7, 2020
    Assignee: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Christopher George Larsen, Timothy J Cunningham
  • Patent number: 10605647
    Abstract: A meter verification method for a vibratory flowmeter (5) is provided, comprising vibrating a sensor assembly (10) of the vibratory flowmeter (5) with a plurality of test tones in a vibration mode using a driver (180), wherein the plurality of test tones is applied substantially instantly, in the absence of a ramp function. A driver (180) current is determined, and response voltage of pickoff sensors (170L, 170R) are determined for the vibration mode. The instantaneous frequency of the pickoff sensor (170L, 170R) signals is measured, and a filter is applied to isolate the response at each of the plurality of test tones. The filter is also applied to the instantaneous frequency measurements. The same delay is applied to the frequency measurements and the response at each of the test tones. A meter stiffness value (216) is generated using the current (230) and the response voltage (231), and proper operation of the vibratory flowmeter (5) is verified using the meter stiffness value (216).
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: March 31, 2020
    Assignee: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Christopher George Larsen, Timothy J. Cunningham
  • Publication number: 20180356274
    Abstract: A method for calibrating a flowmeter (5) transducer is provided comprising the steps of exciting a vibration mode of a flowmeter (5) flow tube (130, 130?) and ceasing to excite the vibration mode, wherein a free decay response of the flow tube (130, 130?) is measured. Amplitudes and phases of the free decay response at a drive frequency are extracted, and a strength of the transducer is calculated.
    Type: Application
    Filed: October 21, 2015
    Publication date: December 13, 2018
    Applicant: Micro Motion, Inc.
    Inventor: Matthew Joseph Rensing
  • Publication number: 20180266864
    Abstract: A method and apparatus for a flowmeter (5) is provided. The method comprises the steps of placing a material in a flow tube (130, 130?) while exciting a vibration mode of the flow tube (130, 130?). Exciting the vibration mode of the flow tube (130, 130?) comprises the steps of periodically driving a first driver (180L) with a first signal and periodically driving a second driver (180R) with a second signal, wherein the second driver (180R) is driven essentially in phase with the first driver (180L), but wherein the first driver's (180L) drive amplitude modulated signal reaches a maximum amplitude when the second driver's (180R) drive modulated signal reaches a minimal amplitude, and the first driver's (180L) drive amplitude modulated signal reaches a minimum amplitude when the second driver's (180R) drive amplitude modulated signal reaches a maximum amplitude.
    Type: Application
    Filed: July 27, 2015
    Publication date: September 20, 2018
    Applicant: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Christopher George Larsen, Timothy J. Cunningham, Stuart J. Shelley
  • Publication number: 20180216987
    Abstract: A meter verification method for a vibratory flowmeter (5) is provided, comprising vibrating a sensor assembly (10) of the vibratory flowmeter (5) with a plurality of test tones in a vibration mode using a driver (180), wherein the plurality of test tones is applied substantially instantly, in the absence of a ramp function. A driver (180) current is determined, and response voltage of pickoff sensors (170L, 170R) are determined for the vibration mode. The instantaneous frequency of the pickoff sensor (170L, 170R) signals is measured, and a filter is applied to isolate the response at each of the plurality of test tones. The filter is also applied to the instantaneous frequency measurements. The same delay is applied to the frequency measurements and the response at each of the test tones. A meter stiffness value (216) is generated using the current (230) and the response voltage (231), and proper operation of the vibratory flowmeter (5) is verified using the meter stiffness value (216).
    Type: Application
    Filed: July 27, 2015
    Publication date: August 2, 2018
    Applicant: Micro Motion, Inc.
    Inventors: Matthew Joseph RENSING, Christopher George LARSEN, Timothy J. CUNNINGHAM
  • Publication number: 20180209831
    Abstract: A method is provided comprising the steps of exciting a vibration mode of a flow tube (130, 130?), wherein first and second drivers (180L, 180R) are amplitude modulated out of phase from each other, and wherein a drive command provided to the first and second drivers (180L, 180R) comprises a sum of N+1 independent signals. The first and second drivers (180L, 180R) are excited with a plurality of off-resonance frequencies and the effective phase between a modal response and the drivers (180L, 180R) at each of the off-resonance frequencies is inferred. A left eigenvector phase estimate is generated for each of the off-resonance frequencies. A phase of a left eigenvector at a resonant drive frequency is estimated based on off-resonance frequency phase estimates. The method also comprises measuring the phase between a first pickoff (170L) and a second pickoff (170R) and determining a phase of a right eigenvector for the flow tube (130, 130?).
    Type: Application
    Filed: July 27, 2015
    Publication date: July 26, 2018
    Applicant: Micro Motion, Inc.
    Inventor: Matthew Joseph Rensing
  • Patent number: 9851242
    Abstract: A combined driver and pick-off sensor component (200, 300) for a vibrating meter is provided. The combined driver and pick-off sensor component (200, 300) includes a magnet portion (104B) with at least a first magnet (211). The combined driver and pick-off sensor component (200, 300) further includes a coil portion (204A, 304A) receiving at least a portion of the first magnet (211). The coil portion (204A, 304A) includes a coil bobbin (220), a driver wire (221) wound around the coil bobbin (220), and a pick-off wire (222) wound around the coil bobbin (220).
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 26, 2017
    Assignee: Micro Motion, Inc.
    Inventors: Christopher George Larsen, Matthew Joseph Rensing, Amy Mai Nilsen, Roger Scott Loving
  • Publication number: 20160116319
    Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) configured to vibrate the flowmeter assembly (10) in a primary vibration mode using the first and second drivers (180L, 180R), determine first and second primary mode currents (230) of the first and second drivers (180L, 180R) for the primary vibration mode and determining first and second primary mode response voltages (231) generated by the first and second pickoff sensors (170L, 170R) for the primary vibration mode, generate a meter stiffness value (216) using the first and second primary mode currents (230) and the first and second primary mode response voltages (231), and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216).
    Type: Application
    Filed: May 20, 2014
    Publication date: April 28, 2016
    Applicant: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Christopher George Larsen, Timothy J Cunningham
  • Publication number: 20140238140
    Abstract: A combined driver and pick-off sensor component (200, 300) for a vibrating meter is provided. The combined driver and pick-off sensor component (200, 300) includes a magnet portion (104B) with at least a first magnet (211). The combined driver and pick-off sensor component (200, 300) further includes a coil portion (204A, 304A) receiving at least a portion of the first magnet (211). The coil portion (204A, 304A) includes a coil bobbin (220), a driver wire (221) wound around the coil bobbin (220), and a pick-off wire (222) wound around the coil bobbin (220).
    Type: Application
    Filed: October 26, 2011
    Publication date: August 28, 2014
    Applicant: Micro Motion, Inc.
    Inventors: Christopher George Larsen, Matthew Joseph Rensing, Amy Mai Nilsen, Roger Scott Loving
  • Patent number: 8280651
    Abstract: Meter electronics (20) for a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a vibrational response from the flow meter (5) and a processing system (203) in communication with the interface (201). The vibrational response is a response to a vibration of the flow meter (5) at a substantially resonant frequency. The processing system (203) is configured to receive the vibrational response from the interface (201), determine a frequency (?0) of the vibrational response, determine a response voltage (V) and a drive current (I) of the vibrational response, measure a decay characteristic (?) of the flow meter (5), and determine the stiffness parameter (K) from the frequency (?0), the response voltage (V), the drive current (I), and the decay characteristic (?).
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: October 2, 2012
    Assignee: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Andrew Timothy Patten, Timothy J. Cunningham, Mark James Bell
  • Publication number: 20110178738
    Abstract: Meter electronics (20) for a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a vibrational response from the flow meter (5) and a processing system (203) in communication with the interface (201). The vibrational response is a response to a vibration of the flow meter (5) at a substantially resonant frequency. The processing system (203) is configured to receive the vibrational response from the interface (201), determine a frequency (?0) of the vibrational response, determine a response voltage (V) and a drive current (I) of the vibrational response, measure a decay characteristic (?) of the flow meter (5), and determine the stiffness parameter (K) from the frequency (?0), the response voltage (V), the drive current (I), and the decay characteristic (?).
    Type: Application
    Filed: November 17, 2010
    Publication date: July 21, 2011
    Applicant: Micro Motion, Inc.
    Inventors: Matthew Joseph RENSING, Andrew Timothy PATTEN, Timothy J. CUNNINGHAM, Mark James BELL
  • Patent number: 7865318
    Abstract: Meter electronics (20) for a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a vibrational response from the flow meter (5) and a processing system (203) in communication with the interface (201). The vibrational response is a response to a vibration of the flow meter (5) at a substantially resonant frequency. The processing system (203) is configured to receive the vibrational response from the interface (201), determine a frequency (?0) of the vibrational response, determine a response voltage (V) and a drive current (I) of the vibrational response, measure a decay characteristic (?) of the flow meter (5), and determine the stiffness parameter (K) from the frequency (?0), the response voltage (V), the drive current (I), and the decay characteristic (?).
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: January 4, 2011
    Assignee: Micro Motion, Inc.
    Inventors: Matthew Joseph Rensing, Andrew Timothy Patten, Timothy J. Cunningham, Mark James Bell
  • Publication number: 20080281535
    Abstract: Meter electronics (20) for a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a vibrational response from the flow meter (5) and a processing system (203) in communication with the interface (201). The vibrational response is a response to a vibration of the flow meter (5) at a substantially resonant frequency. The processing system (203) is configured to receive the vibrational response from the interface (201), determine a frequency (?0) of the vibrational response, determine a response voltage (V) and a drive current (I) of the vibrational response, measure a decay characteristic (?) of the flow meter (5), and determine the stiffness parameter (K) from the frequency (?0), the response voltage (V), the drive current (I), and the decay characteristic (?).
    Type: Application
    Filed: September 19, 2005
    Publication date: November 13, 2008
    Inventors: Matthew Joseph Rensing, Andrew Timothy Patten, Timothy J. Cunningham, Mark James Bell