Patents by Inventor Larry Eugene Jacobsen

Larry Eugene Jacobsen 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).

  • System and method for measuring the frequency of a vibrating object
    Patent number: 8671758
    Abstract: A system and method for measuring a frequency of a wire in a vibrating wire gauge. The system may include a signal generator for generating a signal at a frequency that matches a frequency of the wire vibration and an excitation unit for exciting the wire to increase an amplitude of the wire vibration. The excitation unit may excite the wire using the signal. The system may further include a signal gate for controlling when the signal is sent to the excitation unit.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: March 18, 2014
    Assignee: Campbell Scientific, Inc.
    Inventors: Larry Eugene Jacobsen, Scott Steven Cornelsen
  • SYSTEM AND METHOD FOR MEASURING THE FREQUENCY OF A VIBRATING OBJECT
    Publication number: 20130125653
    Abstract: A system and method for measuring a frequency of a wire in a vibrating wire gauge. The system may include a signal generator for generating a signal at a frequency that matches a frequency of the wire vibration and an excitation unit for exciting the wire to increase an amplitude of the wire vibration. The excitation unit may excite the wire using the signal. The system may further include a signal gate for controlling when the signal is sent to the excitation unit.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 23, 2013
    Applicant: CAMPBELL SCIENTIFIC, INC.
    Inventors: LARRY EUGENE JACOBSEN, SCOTT STEVEN CORNELSEN
  • Vibrating wire sensor using spectral analysis
    Patent number: 7779690
    Abstract: Systems and methods for analyzing the resonant frequency of vibratory wires within vibratory wire gauges. The resonant frequency of the vibrating wire is determined by using an interface that digitizes the response of an excited wire in the gauge. A transform then converts the digitized data into a frequency spectrum. The resulting spectrum is used to estimate the resonant frequency of the vibrating wire. The resulting measurement or estimate of the resonant frequency can be used to measure or determine some physical characteristic of the device or structure or system connected to the gauge.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: August 24, 2010
    Assignee: Campbell Scientific, Inc.
    Inventors: Larry Eugene Jacobsen, David L. Israelsen, Jody A. Swenson
  • Vibrating Wire Sensor Using Spectral Analysis
    Publication number: 20080184800
    Abstract: Systems and methods for analyzing the resonant frequency of vibratory wires within vibratory wire gauges. The resonant frequency of the vibrating wire is determined by using an interface that digitizes the response of an excited wire in the gauge. A transform then converts the digitized data into a frequency spectrum. The resulting spectrum is used to estimate the resonant frequency of the vibrating wire. The resulting measurement or estimate of the resonant frequency can be used to measure or determine some physical characteristic of the device or structure or system connected to the gauge.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Applicant: CAMPBELL SCIENTIFIC, INC.
    Inventors: Larry Eugene Jacobsen, David Lyle Israelsen, Jody Allen Swenson
  • Device for measuring velocity and concentration of gases
    Patent number: D680455
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 23, 2013
    Assignee: Campbell Scientific, Inc.
    Inventors: Larry Eugene Jacobsen, Ivan G. Bogoev, Antoine Benoit Louis Rousseau, Steven D. Sargent